TidePlanet

Today in La Tranche-sur-Mer there are high tides at 5:55 am (18.3 ft) and 6:18 pm (18.1 ft) and low tides at 12:28 am and 12:59 pm. Tide coefficient 108. Right now the tide is falling toward the low tide at 1:11 am. The sun rises at 7:41 am and sets at 5:57 pm: 10 h 16 min of daylight. The moon is 93% illuminated (waning gibbous) and rises at 7:02 pm. Major solunar periods run from 1:28 am to 3:28 am and from 1:59 pm to 3:59 pm. The next spring tides arrive from October 26 to 28. The sea is moderate, with 5.8 ft waves. There's a light breeze from the northeast (5 mph). Overcast, 46 °F.

Fishing

Fishing in La Tranche-sur-Mer today

Fishing forecast, 7 days →

Best time to fish

Solunar activity today: high
6
Average day · 6 out of 10 5:20–7:20 pm Also 12:00–2:00 pm
  • High tide at 6:18 pm, coefficient 105
  • Minor period 6:32–7:32 pm (moonrise)
  • Sunset at 5:57 pm, golden hour from 5:14 pm
  • Rising pressure (+0.16 inHg in 24 h), light onshore wind (5 mph) and 6.6 ft waves
  • Waning gibbous: a bit more activity than at the quarters
  • Highest tide coefficient today: 108 (big spring tides)

Your day at a glance

The best window, 5:20 pm to 7:20 pm, combines the 6:18 pm high tide, moonrise, sunset and a light onshore breeze, though with rising pressure. Also worth a try from 12:00 pm to 2:00 pm, with the 12:59 pm low tide and a major period, though with rising pressure.

Species with the most records nearby: European sea bass, golden grey mullet, whiting and European conger. October is one of the months when these are seen most: European flounder. What you can catch

How it works · Next 7 days · Fishing rules

Beach

Beach day in La Tranche-sur-Mer

Beach forecast, 7 days →

Is it a beach day?

0
Not a beach day · 0 out of 10 No good beach time today.
  • Sunny
  • Offshore breeze (4 mph)
  • Low tide at 12:59 pm: more sand
  • Feels like 58 °F: chilly for the beach
  • Dangerous for swimming: 7.5 ft waves every 12 s; high rip current risk
  • Water at 60 °F (cold)

Dangerous surf during beach hours. Stay out if the red flag is up, and never swim where there is no lifeguard.

Today, hour by hour

  • Swimming Dangerous · 7.5 ft

    7.5 ft waves every 12 s: dangerous for swimming. Stay out if the red flag is up. High rip current risk. If you're caught in a rip current, don't swim against it: swim parallel to shore and wave for help. Always follow the lifeguard's flags.

  • Water 60 °F

    Cold: ease in slowly.

  • Sun & sunscreen UV 2 · SPF 15

    Max UV 2 (low): SPF 15 sunscreen.

  • Wind 4 mph

    Offshore breeze (4 mph).

  • Tide & sand 12:28 am

    Low tide at 12:28 am and 12:59 pm: that's when there's the most sand. High tide at 5:55 am and 6:18 pm.

We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority. How it works · The next 7 days

Beaches near La Tranche-sur-Mer

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

Named beaches within 6.2 mi, nearest first. Amenities from OpenStreetMap: some may be missing or out of date. View on OpenStreetMap · Add or fix on OpenStreetMap

Beaches and amenities: © OpenStreetMap contributors (ODbL). Bathing water quality: European Environment Agency (EEA), with data from the French Ministry of Health (baignades.sante.gouv.fr).

Tides

Tides in La Tranche-sur-Mer

Tides for 7 days →

Today's high and low tides

  • ▼ Low tide 12:28 am 1.4 ft
  • ▲ High tide 5:55 am 18.3 ft · coef. 108
  • ▼ Low tide 12:59 pm 1.5 ft
  • ▲ High tide 6:18 pm 18.1 ft · coef. 105

↓ Falling The tide is falling. 1 h 13 min to low tide at 1:11 am.

Tide coefficient 108 for the 5:55 am high tide and 105 for the 6:18 pm high tide. Big spring tides. The water rises and falls 16.9 ft between the highest high and the lowest low: a large range for this place. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides. What is the tide coefficient?

2026 extremes: the highest tide of the year is on September 27 (19.3 ft) and the lowest, on May 18 (0.4 ft).

Semidiurnal: two high and two low tides a day, of similar height.

Heights above chart datum: the lowest astronomical tide (LAT), the zero of nautical charts in Europe. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. chart datum (LAT)

Tide coefficient and range in October

The biggest tides of the month came from October 26 to 28 (coefficient 110, 17.6 ft range). The smallest, on October 19 (coefficient 33, 5.6 ft).

Tide and solunar table · this week

Day Sun Tide 1Tide 2Tide 3Tide 4 Coef. Moon Major periods Activity
Today, Wed 28 7:41 am · 5:57 pm Low tide 12:28 am · 1.4 ft High tide 5:55 am · 18.3 ft Low tide 12:59 pm · 1.5 ft High tide 6:18 pm · 18.1 ft Coef. 108 93% Major periods 1:28 am · 1:59 pm High
Thu 29 7:43 am · 5:56 pm Low tide 1:11 am · 1.7 ft High tide 6:34 am · 17.7 ft Low tide 1:43 pm · 1.7 ft High tide 6:57 pm · 17.1 ft Coef. 102 85% Major periods 2:31 am · 3:04 pm Medium
Fri 30 7:44 am · 5:54 pm Low tide 1:54 am · 2.4 ft High tide 7:20 am · 16.9 ft Low tide 2:28 pm · 2.4 ft High tide 7:46 pm · 15.8 ft Coef. 92 76% Major periods 3:36 am · 4:08 pm Medium
Sat 31 7:45 am · 5:53 pm Low tide 2:37 am · 3.4 ft High tide 8:31 am · 16.1 ft Low tide 3:14 pm · 3.4 ft High tide 9:07 pm · 14.6 ft Coef. 79 66% Major periods 4:39 am · 5:09 pm Medium
Sun 1 7:47 am · 5:51 pm Low tide 3:24 am · 4.5 ft High tide 9:50 am · 15.4 ft Low tide 4:06 pm · 4.5 ft High tide 10:33 pm · 13.9 ft Coef. 66 Last quarter Major periods 5:38 am · 6:05 pm Medium
Mon 2 7:48 am · 5:50 pm Low tide 4:19 am · 5.6 ft High tide 11:04 am · 15.3 ft Low tide 5:08 pm · 5.4 ft High tide 11:58 pm · 14.0 ft Coef. 57 43% Major periods 6:32 am · 6:57 pm Medium
Tue 3 7:50 am · 5:48 pm Low tide 5:27 am · 6.2 ft High tide 12:15 pm · 15.4 ft Low tide 6:24 pm · 5.7 ft — Coef. 56 33% Major periods 7:21 am · 7:45 pm Medium

▲ high tide · ▼ low tide · heights above chart datum (LAT). Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.

Where this tide comes from

B · Nearby station

La Tranche-sur-Mer has no station of its own, so we use the tide at Aiguillon-sur-Mer (TICON-4), 5.8 mi away. On the open coast the difference is usually a few minutes and inches; inside estuaries, rivers and enclosed bays it can be much larger.

Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database). Source: Hart-Davis, M., Dettmering, D., Seitz, F. (2025), TICON-4: TIdal CONstants based on GESLA-4 sea-level records, SEANOE, https://doi.org/10.17882/109129. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data

How we calculate the tide

Sea and waves

The sea at La Tranche-sur-Mer

7-day waves

Sea stateSea state: moderate

Moderate Douglas 4 · moderate breeze, Beaufort 4
Waves 5.8 ft · 11.7 s from the west (275°)
Swell 5.8 ft · 9.9 s from the west
Current 0.1 mph toward the E

The waves you may find

  • Most commonMost common2.9 ft
  • Significant5.8 ft
  • Highest expectedHighest12 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 12 ft. Before heading out, expect waves of up to 12 ft.

Wind on the coast and offshore

On the coast 5 mph NE · gusts 9
Offshore (7.1 mi SSW)Offshore 13 mph ENE · gusts 17

Offshore wind. The coast faces west and the wind blows from land out to sea: calm shore and clean waves, but watch the drift out to sea.

Offshore Hourly wind →

Wave height, next 7 daysWaves, next 7 days

Waves ease over the next few days. The biggest waves arrive on Wednesday 28: 7.5 ft with a period of 12 s, from the west (moderate).

Water temperature

Water temperature →
Water now59.4 °F
Today 59.4–59.5 °F air: 43 / 60 °F
Satellite (yesterday) 60.4 °F measured 0.3 mi away

Water temperature changes how fish behave: in very cold or very warm water they feed less. The water cools over the next few days: about 57.8 °F by Tuesday 3.

Water about normal for late October.

Satellite: NASA MUR (JPL MUR MEaSUREs, PO.DAAC), doi:10.5067/GHGMR-4FJ04. Sources and licenses

Water temperature →

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 11:58 pm (local time).

Surf

Surf in La Tranche-sur-Mer today

Surf hour by hour and 7 days →

Surf today

Very good
8
Very good · 8 out of 10 2:00–6:00 pm 5.2–8.0 ft
  • 5.2–8.0 ft surf at the shore, a good size with some punch
  • Big surf (8.0 ft): for experienced surfers
  • 7.0 ft swell at 10 s from the west, average
  • Almost no wind (3 mph): glassy water
  • Rising tide (high tide at 6:18 pm)

Big surf: for experienced surfers only. If in doubt, stay on the beach.

Surf at the shore 5.2–8.0 ft average – sets
Swell 7.0 ft 10 s · W · 918 kJ
Wind 3 mph S · calm
Water and wetsuit 59.4 °F 4/3 fullsuit
  • Light: First light 7:10 am · sunrise 7:41 am · sunset 5:57 pm · last light 6:28 pm
  • Tide: low 12:28 am (1.4 ft), high 5:55 am (18.3 ft), low 12:59 pm (1.5 ft) and high 6:18 pm (18.1 ft). Every break has its own tide: some work at low tide and others at high tide. The tide doesn’t change the score here.
  • Water at 59.4 °F: a 4/3 fullsuit (booties if you run cold).
  • Energy: 918 kJ · High power

Today’s surf at a glance

The best window, 2:00 pm to 6:00 pm, has a good size and glassy water, though with big surf.

An estimate for this stretch of coast, not for a specific break: every beach or reef works its own way (its tide, bottom and angle). Check it when you get there.

Follow the flags and the lifeguards, and don’t paddle out if the surf is above your level: this score is a guide, not a substitute for what you see when you get there.

How it’s calculated · Next 7 days

Diving

Diving in La Tranche-sur-Mer today

Diving and snorkeling, 7 days →

Diving and snorkeling today

Likely visibility: poor
1
Poor day · 1 out of 10 5:10–6:00 pm Also 11:30 am–1:20 pm
  • Slack water around high tide (6:18 pm): little current from 5:50 pm to 6:40 pm
  • 6.6 ft swell at 10 s from the west: heavy surge on the bottom
  • Light onshore wind (5 mph)
  • 0.2 mph current toward the southwest, weak (model)
  • Daylight

Not a day for shore diving: swell, wind, current or storms during the best window. If you go, go with a dive shop and only if they give the OK.

Swell 6.6 ft 10 s · from the W
Likely visibility Poor Snorkeling: poor
Water and suit 59.4 °F 7 mm wetsuit
Current 0.2 mph toward the SW
  • Slack water today: low tide 12:28 am (12:10–12:43 am), high tide 5:55 am (5:20–6:20 am), low tide 12:59 pm (12:40–1:14 pm) and high tide 6:18 pm (5:50–6:40 pm)
  • Likely visibility: poor. Swell (up to 7.5 ft at 10 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
  • Water at 59.4 °F: a 7 mm wetsuit, with hood and booties.
  • Snorkeling: better not, with these waves, wind or current.
  • Night dive: dark from 6:28 pm. Waning gibbous (93%), rising at 7:02 pm: a bright night.

Your diving day at a glance

The best window, 5:10 pm to 6:00 pm, combines slack water at high tide, light wind and weak current, though with a big swell. Also worth a look from 11:30 am to 1:20 pm, with slack water at low tide, light wind, weak current and the sun high, though with a big swell.

Slack water comes from the tide: in inlets, channels and between islands the water can keep running for an hour or two after. Ask the local dive shop.

Never dive alone and check with the local dive shop: this rating is a guide, not a substitute for a professional.

How it works · Next 7 days

Dive sites, wrecks and dive shops nearby

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

Within 12 mi. Some may be missing or closed; marine reserves usually need a permit. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap

Wreck and reef positions are approximate and not for navigation; a wreck’s depth runs from the top of the hull to the seabed.

Sites: © OpenStreetMap contributors (ODbL). Wrecks: EMODnet Human Activities (AND-International), from UK Hydrographic Office data, CC BY 4.0. Contains public sector information licensed under the Open Government Licence v3.0.

Weather

Weather in La Tranche-sur-Mer

14-day weather

Now in La Tranche-sur-Mer

Now 46 °F Overcast · feels like 41 °F · 43 / 60 °F
Low / high
43 / 60 °F
Rain
0.00 in · 0%
Clouds
100%
Humidity
83%
Dew pointDew point
41 °F
Visibility
21 mi
UV indexUV
0 · low
Air qualityAir
Fair · 22
Saharan dust
No
Pollen
None

Pressure and fishing

  • ↗ RisingRising Anglers say fish bite less for a while
  • → SteadySteady · now Anglers expect normal activity
  • ↘ FallingFalling Anglers say fish feed more before the change

Steady now (−0.02 inHg in 3 hours). Over the next 48 hours: −0.09 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Today, hour by hourHour by hour

Bars: mean wind. Dashed line: gusts. Arrows point where the wind blows to.

Time 12:00 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Sky Mainly clearClearMainly clearClear skyClear skyPartly cloudyOvercastOvercast
Temperature 53°48°46°45°58°60°56°50°
Wind (mph) 5 NW3 NNW3 NNE3 NE4 E3 S5 WNW5 NNE
Gusts 1174510999
Waves 7.0 ft7.2 ft7.5 ft7.5 ft7.3 ft7.0 ft6.6 ft6.3 ft
Rain 0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in
  • 12:00 am 46° 5 NE 5.8 ft
  • 3:00 am 44° 5 NE 5.3 ft
  • 6:00 am 44° 6 NE 4.8 ft
  • 9:00 am 47° 8 NE 4.3 ft
  • 12:00 pm 57° 11 ENE 4.0 ft
  • 3:00 pm 62° 12 ENE 3.7 ft
  • 6:00 pm 58° 7 ENE 3.5 ft
  • 9:00 pm 49° 6 NE 3.1 ft

Next 14 daysComing days

Day Sky Low / high Max wind Max wave High tides
Today · 28 Overcast 43 / 60 °F 5 mph NNE 7.5 ft 5:55 am · 6:18 pm
Thu 29 Overcast 43 / 62 °F 13 mph ENE 5.8 ft 6:34 am · 6:57 pm
Fri 30 Overcast 38 / 63 °F 9 mph ENE 3.0 ft 7:20 am · 7:46 pm
Sat 31 Overcast 46 / 57 °F 12 mph NE 3.8 ft 8:31 am · 9:07 pm
Sun 1 Partly cloudy 45 / 56 °F 12 mph NE 3.6 ft 9:50 am · 10:33 pm
Mon 2 Overcast 46 / 58 °F 12 mph NNE 2.9 ft 11:04 am · 11:58 pm
Tue 3 Overcast 45 / 54 °F 13 mph NE 2.6 ft 12:15 pm
Wed 4 Partly cloudy 42 / 50 °F 14 mph NE 2.9 ft 1:18 am · 1:25 pm
Thu 5 Overcast 40 / 57 °F 10 mph ENE 2.6 ft 2:19 am · 2:29 pm
Fri 6 Overcast 43 / 57 °F 10 mph E 1.8 ft 3:04 am · 3:18 pm
Sat 7 Overcast 48 / 61 °F 9 mph ESE 2.2 ft 3:40 am · 3:53 pm
Sun 8 Overcast 53 / 63 °F 11 mph SE 2.5 ft 4:07 am · 4:20 pm
Mon 9 Drizzle 58 / 60 °F 12 mph SSE 3.1 ft 4:32 am · 4:44 pm
Tue 10 Drizzle 55 / 59 °F 11 mph S 2.8 ft 4:55 am · 5:05 pm
  • Thu 29 Overcast 43° / 62° 5.8 ft
  • Fri 30 Overcast 38° / 63° 3.0 ft
  • Sat 31 Overcast 46° / 57° 3.8 ft
  • Sun 1 Partly cloudy 45° / 56° 3.6 ft
  • Mon 2 Overcast 46° / 58° 2.9 ft
  • Tue 3 Overcast 45° / 54° 2.6 ft
  • Wed 4 Partly cloudy 42° / 50° 2.9 ft
See all 14 days →

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

  • The models They agree · high confidence for the next few days. See the models →
  • Outlook Next few weeks, compared with normal: normal temperatures, normal rain and a slightly cooler sea. See the outlook →
  • Normal Today, normal highs for late October (62 °F). Climate by month →

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 11:58 pm (local time).

Sun

The sun in La Tranche-sur-Mer

Sunrise and sunset →

Sunrise and sunset

Rises 7:41 am in the ESE (108°)ESE
Sets 5:57 pm in the WSW (251°)WSW
  • First light 6:35 am
  • Full dark 7:04 pm
  • Civil dawn 7:10 am
  • Civil dusk 6:28 pm
  • Solar noon 12:50 pm (30° high)
  • Daylight 10 h 16 min (−3 min)
  • Evening golden hour 5:14 pm
  • Full dark 7:04 pm

Golden hour and the day-night map

Morning golden hour7:41–8:24 am
Evening golden hour5:14–5:57 pm
La Tranche-sur-Mer

Today the sun is 92,359,764 mi away and looks 32′ 11″ across.

Moon and solunar

The moon in La Tranche-sur-Mer

The moon for 7 days →

Moon phase and position

Waning gibbous · 93% 93% illuminated · 17.8 days old New moon on Mon, Nov 9 · 8:03 am
Rises 7:02 pm in the NE (49°)NE
Sets 12:06 pm tomorrow · in the NW (312°) · set at 10:51 am
Transit 2:28 am overhead
Visible 17 h 3 min from 7:02 pm to 12:06 pm

Today the moon is 226,461 mi away and looks 32′ 47″ across.

Solunar periods

Today's activity: high
  • 1:28–3:28 am Major · the moon passes overhead · high activity
  • 1:59–3:59 pm Major · the moon passes underfoot · high activity
  • 10:21–11:21 am Minor · moonset · medium activity
  • 6:32–7:32 pm Minor · moonrise · medium activity

According to solunar theory, fish feed more when the moon passes overhead or underfoot (major periods, about 2 h) and when it rises or sets (minor periods, 1 h). It works best around new and full moon.

Upcoming moon phases

2026 moon calendar →
  • Last quarter Sun, Nov 1 · 9:29 pmNov 1 in 4 days
  • New moon Mon, Nov 9 · 8:03 amNov 9 in 12 days
  • First quarter Tue, Nov 17 · 12:48 pmNov 17 in 20 days
  • Full moon Tue, Nov 24 · 3:54 pmNov 24 in 27 days

Perigee on October 28, 226,426 mi away, coinciding with the spring tides from October 26 to 28: they will be stronger than usual.

Place

Where to fish in La Tranche-sur-Mer

All places in Pays de la Loire →

Piers, ramps and tackle shops nearby

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

Within 9.3 mi. A spot may be missing or closed. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap

Spots: © OpenStreetMap contributors (ODbL) and Overture Maps.

Water depth

Very shallow

Very shallow and flat: 3.1 mi from shore the water is still only about 30 ft deep.

From the shoreline (0.65 mi from La Tranche-sur-Mer) out to sea, heading west.

How far from shore

  • 16 ft deep1.6 mi
  • 33 ft deepnot within 3.1 mi
  • 66 ft deepnot within 3.1 mi
  • 164 ft deepnot within 3.1 mi

For fishing, swimming and diving

  • Shore fishing. Shallow, gradual bottom (16 ft at 1.6 mi): cast far from the beach and fish the high tide, when there is more water close in.
  • Swimming. A very gentle way in with plenty of shallow water, good for kids. At low tide the water can be far out.
  • Diving. Shallow: the water doesn't reach 33 ft within 3.1 mi. For deeper dives, take a boat farther out.

Source: EMODnet Bathymetry DTM 2024 (CC BY 4.0), cells of about 380 ft; depth at the lowest astronomical tide. For reference only: not for navigation or anchoring.

Nearest lighthouse

Photo of Pointe du Grouin du Cou lighthouse
Photo: Minou85 · CC BY-SA 3.0

Pointe du Grouin du Cou lighthouse 1.3 mi west

Light
A flash every 5 s; white, red or green depending on where you see it from · Fl WRG 5s
Range
20 nautical miles (23 mi)
Light height
95 ft above sea level
Tower height
52 ft
Built
1831

Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikipedia · Wikidata · Sources and licenses

Tides near La Tranche-sur-MerTides nearby

All places in Pays de la Loire, A to Z (208) →

La Tranche-sur-Mer at a glance

  • Town or city of about 2,671 people. Coordinates: 46.343° N, 1.437° W.
  • It is 61 mi south of Nantes, the main place in Pays de la Loire. The sun rises 2 min earlier and sets 1 min later than in Nantes.
  • The nearest tide station, Aiguillon-sur-Mer, is 5.8 mi to the east.
  • Its coast faces west.

Questions about La Tranche-sur-MerQuestions

What time is high tide today in La Tranche-sur-Mer?

Today in La Tranche-sur-Mer there are high tides at 5:55 am (18.3 ft) and 6:18 pm (18.1 ft) and low tides at 12:28 am and 12:59 pm. Tide coefficient 108.

What time is sunset today in La Tranche-sur-Mer?

At 5:57 pm. There is light until the end of civil twilight, at 6:28 pm.

What time is sunrise tomorrow in La Tranche-sur-Mer?

At 7:43 am. First light comes at 6:36 am.

What phase is the moon today?

Waning gibbous, 93% illuminated. New moon on Mon, Nov 9 · 8:03 am.

When are the next spring tides?

From October 26 to 28, together with the lunar perigee: they will be stronger than usual.

What are today's solunar periods?

Major 1:28–3:28 am, Minor 10:21–11:21 am, Major 1:59–3:59 pm, Minor 6:32–7:32 pm. Today's activity is high.

What's the weather like today in La Tranche-sur-Mer?

Overcast, from 43 °F to 60 °F, with a light breeze from the northeast (5 mph) and a 0% chance of rain.

How is the sea today in La Tranche-sur-Mer?

Moderate (Douglas 4): 5.8 ft waves with a period of 11.7 s from the west. The water is 59.4 °F.

When is the best time to visit La Tranche-sur-Mer?

The best time to visit La Tranche-sur-Mer is from June to September: highs of 73 °F to 77 °F, about 6 rainy days a month and 8 hours of sunshine a day.

Can I use this data for navigation?

No. These are predictions for fishing and leisure; for navigation, use the official publications.

Where this data comes from

Tide: Aiguillon-sur-Mer station, with constants from TICON-4 (Hart-Davis, Dettmering and Seitz, 2025, SEANOE), licensed CC BY 4.0, via Slackwater database (changes). Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).

Spotted a mistake? Tell us · How we calculate the tide

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