TidePlanet

Today in Ars-en-Ré there are high tides at 6:23 am (13.3 ft) and 6:58 pm (12.5 ft) and low tides at 1:34 am and 1:58 pm. Tide coefficient 84. Right now the tide is falling toward the low tide at 1:34 am. The sun rises at 7:43 am and sets at 5:56 pm: 10 h 14 min of daylight. The moon is 85% illuminated (waning gibbous) and rises at 8:02 pm. Major solunar periods run from 2:32 am to 4:32 am and from 3:04 pm to 5:04 pm. The next spring tides arrive from November 9 to 11. The sea is moderate, with 6.9 ft waves. There's a gentle breeze from the east-northeast (12 mph). Overcast, 53 °F.

Fishing

Fishing in Ars-en-Ré today

Fishing forecast, 7 days →

Best time to fish

Solunar activity today: medium
6
Average day · 6 out of 10 6:00–8:00 pm Also 5:20–7:20 am and 1:00–4:00 pm
  • High tide at 6:58 pm, coefficient 81
  • Minor period 7:32–8:32 pm (moonrise)
  • Sunset at 5:56 pm, golden hour from 5:13 pm
  • Falling pressure (−0.14 inHg in 24 h), light offshore wind (11 mph) and some swell (4.1 ft waves) to stir the water
  • Waning gibbous: a bit more activity than at the quarters
  • Highest tide coefficient today: 84 (average tides)

Your day at a glance

The best window, 6:00 pm to 8:00 pm, combines the 6:58 pm high tide, moonrise, sunset, falling pressure and some swell. Also good from 5:20 am to 7:20 am, with the 6:23 am high tide, sunrise and falling pressure. Also worth a try from 1:00 pm to 4:00 pm, with the 1:58 pm low tide, a major period, falling pressure and some swell, though with moderate wind.

Species with the most records nearby: European sea bass, common sole, Atlantic horse mackerel and European squid. What you can catch

How it works · Next 7 days · Fishing rules

Beach

Beach day in Ars-en-Ré

Beach forecast, 7 days →

Is it a beach day?

0
Not a beach day · 0 out of 10 No good beach time today.
  • Low tide at 1:58 pm: more sand
  • Cloudy (98% cloud cover)
  • Feels like 53 °F: chilly for the beach
  • Moderate offshore wind (16 mph): it blows floats and inflatables out to sea
  • Dangerous for swimming: 5.3 ft waves every 11 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 · 5.3 ft

    5.3 ft waves every 11 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 16 mph

    Moderate offshore wind (16 mph). Skip the inflatables: offshore wind carries them out to sea.

  • Tide & sand 1:34 am

    Low tide at 1:34 am and 1:58 pm: that's when there's the most sand. High tide at 6:23 am and 6:58 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 Ars-en-Ré

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 Ars-en-Ré

Tides for 7 days →

Today's high and low tides

  • ▲ High tide 6:23 am 13.3 ft · coef. 84
  • ▼ Low tide 1:58 pm 1.5 ft
  • ▲ High tide 6:58 pm 12.5 ft · coef. 81

↓ Falling The tide is falling. 31 min to low tide at 1:34 am.

Tide coefficient 84 for the 6:23 am high tide and 81 for the 6:58 pm high tide. Average coefficient. The water rises and falls 11.8 ft between the highest high and the lowest low: an average 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 March 20 (14.6 ft) and the lowest, on July 17 (0.3 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 9 to 11 (coefficient 93, 13.0 ft range). The smallest, on October 19 (coefficient 35, 5.4 ft).

Tide and solunar table · this week

Day Sun Tide 1Tide 2Tide 3Tide 4 Coef. Moon Major periods Activity
Today, Thu 29 7:43 am · 5:56 pm Low tide 1:34 am · 1.8 ft High tide 6:23 am · 13.3 ft Low tide 1:58 pm · 1.5 ft High tide 6:58 pm · 12.5 ft Coef. 84 85% Major periods 2:32 am · 3:04 pm Medium
Fri 30 7:44 am · 5:55 pm Low tide 2:11 am · 1.9 ft High tide 7:16 am · 12.4 ft Low tide 2:37 pm · 1.6 ft High tide 7:59 pm · 11.4 ft Coef. 77 76% Major periods 3:36 am · 4:08 pm Medium
Sat 31 7:45 am · 5:53 pm Low tide 2:50 am · 2.1 ft High tide 8:23 am · 11.5 ft Low tide 3:21 pm · 1.8 ft High tide 9:12 pm · 10.4 ft Coef. 68 66% Major periods 4:39 am · 5:09 pm Medium
Sun 1 7:47 am · 5:52 pm Low tide 3:36 am · 2.4 ft High tide 9:45 am · 10.8 ft Low tide 4:14 pm · 2.1 ft High tide 10:44 pm · 9.8 ft Coef. 59 Last quarter Major periods 5:38 am · 6:06 pm Medium
Mon 2 7:48 am · 5:50 pm Low tide 4:35 am · 2.7 ft High tide 11:23 am · 10.6 ft Low tide 5:20 pm · 2.4 ft — Coef. 54 43% Major periods 6:32 am · 6:57 pm Medium
Tue 3 7:50 am · 5:49 pm High tide 12:09 am · 10.0 ft Low tide 5:47 am · 2.7 ft High tide 12:39 pm · 11.0 ft Low tide 6:37 pm · 2.2 ft Coef. 57 33% Major periods 7:21 am · 7:45 pm Medium
Wed 4 7:51 am · 5:47 pm High tide 1:12 am · 10.5 ft Low tide 7:04 am · 2.3 ft High tide 1:36 pm · 11.6 ft Low tide 7:49 pm · 1.6 ft Coef. 66 23% Major periods 8:08 am · 8:30 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

A · Official station

Tides from the Ars-en-Ré station (REFMAR (Cdc Ile de Ré)), 0.7 mi from Ars-en-Ré. Times and heights are its predictions.

Station data attribution: REFMAR, ARS-EN-RE (Cdc Ile de Ré), http://dx.doi.org/10.17183/REFMAR#6258, https://data.shom.fr/donnees/refmar/6258: sea level observations of 2025-07-27 to 2026-07-28. Licence Ouverte v2.0 (Etalab, https://www.etalab.gouv.fr/licence-ouverte-open-licence/). Modified: harmonic constants fitted by TidePlanet from these observations.

How we calculate the tide

Sea and waves

The sea at Ars-en-Ré

7-day waves

Sea stateSea state: moderate

Moderate Douglas 4 · moderate breeze, Beaufort 4
Waves 6.9 ft · 11.6 s from the west (280°)
Swell 6.8 ft · 9.9 s from the west
Current 0.6 mph toward the NE

The waves you may find

  • Most commonMost common3.4 ft
  • Significant6.9 ft
  • Highest expectedHighest14 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 14 ft. Before heading out, expect waves of up to 14 ft.

Wind on the coast and offshore

On the coast 12 mph ENE · gusts 17

The model doesn't separate offshore wind here: it's the same as on the coast.

Offshore wind. The coast faces southwest 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 Thursday 29: 7.1 ft with a period of 12 s, from the west (moderate).

Water temperature

Water temperature →
Water now59.7 °F
Today 59.5–59.7 °F air: 51 / 60 °F
Satellite (2 days ago) 60.6 °F measured 0.9 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 57.9 °F by Wednesday 4.

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 1:04 am (local time).

Surf

Surf in Ars-en-Ré today

Surf hour by hour and 7 days →

Surf today

Good
7
Good · 7 out of 10 7:11–11:00 am 3.7–5.6 ft
  • 3.7–5.6 ft surf at the shore, a good size with some punch
  • 4.9 ft swell at 9 s from the west, a bit short
  • Moderate offshore wind (13 mph): it holds up and grooms the waves
  • First or last light of the day
  • Falling tide (low tide at 1:58 pm)
Surf at the shore 3.7–5.6 ft average – sets
Swell 4.9 ft 9 s · W · 377 kJ
Wind 13 mph ENE · offshore
Water and wetsuit 59.5 °F 4/3 fullsuit
  • Light: First light 7:11 am · sunrise 7:43 am · sunset 5:56 pm · last light 6:27 pm
  • Tide: low 1:34 am (1.8 ft), high 6:23 am (13.3 ft), low 1:58 pm (1.5 ft) and high 6:58 pm (12.5 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 59.5 °F: a 4/3 fullsuit (booties if you run cold).
  • Energy: 377 kJ · Medium power

Today’s surf at a glance

The best window, 7:11 am to 11:00 am, has a good size and light offshore wind.

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 Ars-en-Ré today

Diving and snorkeling, 7 days →

Diving and snorkeling today

Likely visibility: poor
4
Fair day · 4 out of 10 5:30–6:30 pm Also 1:20–2:20 pm
  • Slack water around high tide (6:58 pm): little current from 6:10 pm to 7:20 pm
  • 4.1 ft swell at 9 s from the west: strong surge on the bottom
  • Light offshore wind (11 mph)
  • 0.1 mph current toward the south, weak (model)
  • Daylight
Swell 4.1 ft 9 s · from the W
Likely visibility Poor Snorkeling: poor
Water and suit 59.5 °F 7 mm wetsuit
Current 0.1 mph toward the S
  • Slack water today: low tide 1:34 am (1:00–1:50 am), high tide 6:23 am (5:40–6:50 am), low tide 1:58 pm (1:30–2:13 pm) and high tide 6:58 pm (6:10–7:20 pm)
  • Likely visibility: poor. Swell (up to 9.1 ft at 10 s) over the last few days has stirred up the water. Based on the last 24 hours of data.
  • Water at 59.5 °F: a 7 mm wetsuit, with hood and booties.
  • Snorkeling: better not, with these waves, wind or current.
  • Night dive: dark from 6:27 pm. Waning gibbous (85%), rising at 8:02 pm: a bright night.

Your diving day at a glance

The best window, 5:30 pm to 6:30 pm, combines slack water at high tide, light wind and weak current, though with some swell. Also worth a look from 1:20 pm to 2:20 pm, with slack water at low tide, weak current and the sun high, though with some swell and moderate wind.

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 Ars-en-Ré

14-day weather

Now in Ars-en-Ré

Now 53 °F Overcast · feels like 47 °F · 51 / 60 °F
Low / high
51 / 60 °F
Rain
0.00 in · 0%
Clouds
100%
Humidity
81%
Dew pointDew point
47 °F
Visibility
20 mi
UV indexUV
0 · low
Air qualityAir
Fair · 21
Saharan dust
No
Pollen
None

Pressure and fishing

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

Falling now (−0.03 inHg in 3 hours). Over the next 48 hours: −0.08 inHg. Falling pressure: anglers say fish feed more before the change. 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 OvercastOvercastOvercastOvercastOvercastOvercastOvercastPartly cloudy
Temperature 53°53°51°51°55°60°59°56°
Wind (mph) 11 ENE12 E11 ENE14 ENE15 ENE16 ENE11 E13 ENE
Gusts 1618162023242020
Waves 7.1 ft6.4 ft5.8 ft5.3 ft4.9 ft4.6 ft4.3 ft3.9 ft
Rain 0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in
  • 3:00 am 53° 12 E 6.4 ft
  • 6:00 am 51° 11 ENE 5.8 ft
  • 9:00 am 51° 14 ENE 5.3 ft
  • 12:00 pm 55° 15 ENE 4.9 ft
  • 3:00 pm 60° 16 ENE 4.6 ft
  • 6:00 pm 59° 11 E 4.3 ft
  • 9:00 pm 56° 13 ENE 3.9 ft
  • 12:00 am 52° 12 ENE 3.5 ft

Next 14 daysComing days

Day Sky Low / high Max wind Max wave High tides
Today · 29 Overcast 51 / 60 °F 16 mph ENE 7.1 ft 6:23 am · 6:58 pm
Fri 30 Overcast 48 / 61 °F 13 mph ENE 3.6 ft 7:16 am · 7:59 pm
Sat 31 Overcast 48 / 57 °F 15 mph ENE 4.7 ft 8:23 am · 9:12 pm
Sun 1 Overcast 47 / 56 °F 15 mph NE 4.5 ft 9:45 am · 10:44 pm
Mon 2 Overcast 48 / 58 °F 18 mph NE 3.7 ft 11:23 am
Tue 3 Overcast 50 / 55 °F 18 mph NE 3.2 ft 12:09 am · 12:39 pm
Wed 4 Partly cloudy 48 / 52 °F 19 mph ENE 3.7 ft 1:12 am · 1:36 pm
Thu 5 Overcast 46 / 56 °F 17 mph ENE 3.4 ft 2:02 am · 2:23 pm
Fri 6 Overcast 50 / 57 °F 16 mph E 2.4 ft 2:43 am · 3:02 pm
Sat 7 Overcast 55 / 60 °F 17 mph SE 2.2 ft 3:18 am · 3:35 pm
Sun 8 Overcast 56 / 62 °F 18 mph SE 2.5 ft 3:50 am · 4:04 pm
Mon 9 Drizzle 59 / 61 °F 21 mph S 3.1 ft 4:19 am · 4:32 pm
Tue 10 Drizzle 58 / 61 °F 18 mph S 2.8 ft 4:47 am · 5:00 pm
Wed 11 Light drizzle 58 / 59 °F 20 mph WSW 3.4 ft 5:16 am · 5:30 pm
  • Fri 30 Overcast 48° / 61° 3.6 ft
  • Sat 31 Overcast 48° / 57° 4.7 ft
  • Sun 1 Overcast 47° / 56° 4.5 ft
  • Mon 2 Overcast 48° / 58° 3.7 ft
  • Tue 3 Overcast 50° / 55° 3.2 ft
  • Wed 4 Partly cloudy 48° / 52° 3.7 ft
  • Thu 5 Overcast 46° / 56° 3.4 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 (61 °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 1:04 am (local time).

Sun

The sun in Ars-en-Ré

Sunrise and sunset →

Sunrise and sunset

Rises 7:43 am in the ESE (109°)ESE
Sets 5:56 pm in the WSW (251°)WSW
  • First light 6:36 am
  • Full dark 7:03 pm
  • Civil dawn 7:11 am
  • Civil dusk 6:27 pm
  • Solar noon 12:50 pm (30° high)
  • Daylight 10 h 14 min (−3 min)
  • Evening golden hour 5:13 pm
  • Full dark 7:03 pm

Golden hour and the day-night map

Morning golden hour7:43–8:25 am
Evening golden hour5:13–5:56 pm
Ars-en-Ré

Today the sun is 92,335,448 mi away and looks 32′ 11″ across.

Moon and solunar

The moon in Ars-en-Ré

The moon for 7 days →

Moon phase and position

Waning gibbous · 85% 85% illuminated · 18.8 days old New moon on Mon, Nov 9 · 8:03 am
Rises 8:02 pm in the NE (48°)NE
Sets 1:07 pm tomorrow · in the NW (311°) · set at 12:05 pm
Transit 3:32 am overhead
Visible 17 h 5 min from 8:02 pm to 1:07 pm

Today the moon is 226,618 mi away and looks 32′ 45″ across.

Solunar periods

Today's activity: medium
  • 2:32–4:32 am Major · the moon passes overhead · high activity
  • 3:04–5:04 pm Major · the moon passes underfoot · high activity
  • 11:35 am–12:35 pm Minor · moonset · medium activity
  • 7:32–8:32 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 3 days
  • New moon Mon, Nov 9 · 8:03 amNov 9 in 11 days
  • First quarter Tue, Nov 17 · 12:48 pmNov 17 in 19 days
  • Full moon Tue, Nov 24 · 3:54 pmNov 24 in 26 days

Next perigee (the moon at its closest to Earth): November 25, 223,281 mi away.

Place

Where to fish in Ars-en-Ré

All places in New Aquitaine →

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

Shallow, gradual

Shallow, gradual bottom: you need to go 1.6 mi out for 33 ft of water.

From the shoreline (0.8 mi from Ars-en-Ré) out to sea, heading southwest.

How far from shore

  • 16 ft deep0.9 mi
  • 33 ft deep1.6 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 0.9 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 near shore: you only reach 33 ft at 1.6 mi. For dives deeper than 33 ft, go by boat.

Where the bottom comes up to the surface there are shoals, rocks or an islet next to the profile.

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 Phare des Baleines
Photo: Kilohn limahn · CC BY-SA 3.0

Phare des Baleines 3.3 mi northwest

Light
4 white flashes every 15 s · Fl(4) W 15s
Range
27 nautical miles (31 mi)
Light height
174 ft above sea level
Tower height
184 ft
Built
1854

Other lighthouses nearby: Vieux Phare des Baleines (3.4 mi northwest), Phare des Baleineaux (5.1 mi northwest).

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

Tides near Ars-en-RéTides nearby

All places in New Aquitaine, A to Z (418) → Île de Ré tides →

Ars-en-Ré at a glance

  • Town or city of about 1,444 people. Coordinates: 46.208° N, 1.516° W.
  • It is 105 mi northwest of Bordeaux, the main place in New Aquitaine. The sun rises 6 min later and sets 1 min later than in Bordeaux.
  • The nearest tide station, Ars-en-Ré, is 0.7 mi to the northeast.
  • Its coast faces southwest.

Questions about Ars-en-RéQuestions

What time is high tide today in Ars-en-Ré?

Today in Ars-en-Ré there are high tides at 6:23 am (13.3 ft) and 6:58 pm (12.5 ft) and low tides at 1:34 am and 1:58 pm. Tide coefficient 84.

What time is sunset today in Ars-en-Ré?

At 5:56 pm. There is light until the end of civil twilight, at 6:27 pm.

What time is sunrise tomorrow in Ars-en-Ré?

At 7:44 am. First light comes at 6:38 am.

What phase is the moon today?

Waning gibbous, 85% illuminated. New moon on Mon, Nov 9 · 8:03 am.

When are the next spring tides?

From November 9 to 11.

What are today's solunar periods?

Major 2:32–4:32 am, Minor 11:35 am–12:35 pm, Major 3:04–5:04 pm, Minor 7:32–8:32 pm. Today's activity is medium.

What's the weather like today in Ars-en-Ré?

Overcast, from 51 °F to 60 °F, with a gentle breeze from the east-northeast (12 mph) and a 0% chance of rain.

How is the sea today in Ars-en-Ré?

Moderate (Douglas 4): 6.9 ft waves with a period of 11.6 s from the west. The water is 59.7 °F.

When is the best time to visit Ars-en-Ré?

The best time to visit Ars-en-Ré is from June to September: highs of 72 °F to 76 °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: Ars-en-Ré tide gauge (REFMAR, Cdc Ile de Ré), doi:10.17183/REFMAR#6258, licensed Licence Ouverte 2.0; constants fitted by TidePlanet from its readings. 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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