Boulogne-sur-Mer tides today
- Tide now 15.9 ft ↑ rising · high 1:23 am (29.7 ft)
- Best time tomorrow 7:50–8:30 am good day · 7/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 3.4 ft · 58 °F slight · 7.3 s from the west-southwest
- Wind · air 7 mph · 58 °F from the W, gusts 13 · partly cloudy
- Sun 7:38 am–5:36 pm 9 h 58 min of daylight
- Moon 93% · 6:24 pm waning gibbous · rises at 6:24 pm
- Diving tomorrow 8:30–10:10 am good day · 7/10
Today in Boulogne-sur-Mer there are high tides at 12:44 am (30.0 ft) and 1:01 pm (30.2 ft) and low tides at 8:05 am and 8:29 pm. Tide coefficient 92. Right now the tide is rising toward the high tide at 1:23 am. The sun rises at 7:38 am and sets at 5:36 pm: 9 h 58 min of daylight. The moon is 93% illuminated (waning gibbous) and rises at 6:24 pm. Major solunar periods run from 1:15 am to 3:15 am and from 1:46 pm to 3:46 pm. The next spring tides arrive from October 26 to 28. The sea is slight, with 3.4 ft waves. There's a light breeze from the west (7 mph). Partly cloudy, 58 °F.
Fishing in Boulogne-sur-Mer today
Best time to fish
Solunar activity today: high- Low tide at 8:05 am
- Sunrise at 7:38 am
- Rising pressure (+0.50 inHg in 24 h), light onshore wind (10 mph) and some swell (4.5 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 92 (spring tides)
- A minor period lines up with sunset
Your day at a glance
The best window, 7:00 am to 8:30 am, combines the 8:05 am low tide, sunrise, a light onshore breeze and some swell, though with rising pressure. Also worth a try from 12:00 pm to 2:00 pm, with the 1:01 pm high tide, a major period, a light onshore breeze and some swell, though with rising pressure.
Species with the most records nearby: European plaice, whiting, Atlantic horse mackerel and common sole. October is one of the months when these are seen most: Atlantic horse mackerel and thornback ray. What you can catch
Beach day in Boulogne-sur-Mer
Is it a beach day?
- Sun and clouds
- Onshore breeze (12 mph)
- Low tide at 8:05 am: more sand
- Feels like 55 °F: chilly for the beach
- Swim with care: 4.4 ft waves every 8 s; moderate rip current risk
- Water at 58 °F (very cold)
Today, hour by hour
- Swimming Use care · 4.4 ft
4.4 ft waves every 8 s: swim with care and stay where you can stand. Moderate rip current risk. Always follow the lifeguard's flags.
- Water 58 °F
Very cold: ease in and keep swims short.
- Sun & sunscreen UV 1 · SPF 15
Max UV 1 (low): SPF 15 sunscreen.
- Wind 12 mph
Onshore breeze (12 mph).
- Tide & sand 8:05 am
Low tide at 8:05 am and 8:29 pm: that's when there's the most sand. High tide at 12:44 am and 1:01 pm. Coefficient 92 (spring tides): little sand left at high tide.
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 Boulogne-sur-Mer
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Plage de Boulogne-sur-Mer 1.5 mi · NW
- Restrooms
- Showers
- Parking
Poor water quality 2025 season, EEA
- Plage du Portel 2.1 mi · SW
- Lifeguard
- Restrooms
- Showers
- Parking
- No dogs
Sufficient water quality 2025 season, EEA
- Crique de Ningles 3.2 mi · SW
- Plage d'Ambleteuse 3.5 mi · N
- Crique de la Crevasse 3.6 mi · SW
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).
Webcams near Boulogne-sur-Mer
Webcams provided by windy.com — add a webcam
Tides in Boulogne-sur-Mer
Today's high and low tides
- ▲ High tide 12:44 am 30.0 ft · coef. 92
- ▼ Low tide 8:05 am 3.8 ft
- ▲ High tide 1:01 pm 30.2 ft · coef. 91
- ▼ Low tide 8:29 pm 3.7 ft
↑ Rising The tide is rising. 2 h 24 min to high tide at 1:23 am.
Tide coefficient 92 for the 12:44 am high tide and 91 for the 1:01 pm high tide. Spring tides. The water rises and falls 26.5 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 March 22 (30.3 ft) and the lowest, on August 14 (1.6 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 10 to 12 (coefficient 93, 26.9 ft range). The smallest, on October 20 (coefficient 34, 9.7 ft).
Tide and solunar table · this week
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Wed 28 | 7:38 am · 5:36 pm | High tide 12:44 am · 30.0 ft | Low tide 8:05 am · 3.8 ft | High tide 1:01 pm · 30.2 ft | Low tide 8:29 pm · 3.7 ft | Coef. 92 | 93% | Major periods 1:15 am · 1:46 pm | High |
| Thu 29 | 7:40 am · 5:34 pm | High tide 1:23 am · 29.7 ft | Low tide 8:50 am · 4.3 ft | High tide 1:41 pm · 29.7 ft | Low tide 9:15 pm · 4.3 ft | Coef. 89 | 85% | Major periods 2:18 am · 2:51 pm | Medium |
| Fri 30 | 7:41 am · 5:32 pm | High tide 2:06 am · 28.9 ft | Low tide 9:35 am · 5.2 ft | High tide 2:24 pm · 28.6 ft | Low tide 10:01 pm · 5.2 ft | Coef. 83 | 76% | Major periods 3:23 am · 3:55 pm | Medium |
| Sat 31 | 7:43 am · 5:30 pm | High tide 2:52 am · 27.5 ft | Low tide 10:24 am · 6.4 ft | High tide 3:13 pm · 27.0 ft | Low tide 10:52 pm · 6.5 ft | Coef. 75 | 66% | Major periods 4:26 am · 4:56 pm | Medium |
| Sun 1 | 7:45 am · 5:29 pm | High tide 3:46 am · 25.7 ft | Low tide 11:18 am · 7.6 ft | High tide 4:14 pm · 25.0 ft | Low tide 11:50 pm · 7.7 ft | Coef. 64 | Last quarter | Major periods 5:25 am · 5:53 pm | Medium |
| Mon 2 | 7:47 am · 5:27 pm | High tide 4:59 am · 23.9 ft | Low tide 12:22 pm · 8.5 ft | High tide 5:43 pm · 23.5 ft | — | Coef. 55 | 43% | Major periods 6:19 am · 6:44 pm | Medium |
| Tue 3 | 7:48 am · 5:25 pm | Low tide 12:59 am · 8.4 ft | High tide 6:34 am · 23.2 ft | Low tide 1:37 pm · 8.6 ft | High tide 7:19 pm · 23.5 ft | Coef. 52 | 33% | Major periods 7:09 am · 7:32 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
Tides from the Boulogne-sur-Mer station (TICON-4), 1.6 mi from Boulogne-sur-Mer. Times and heights are its predictions.
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
The sea at Boulogne-sur-Mer
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.7 ft
- Significant3.4 ft
- Highest expectedHighest7.0 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 7.0 ft. Before heading out, expect waves of up to 7.0 ft.
Wind on the coast and offshore
Onshore wind. The coast faces west and the wind blows straight in from the sea: more surf and backwash at the shore, and bait and boats drift toward land.
Wave height, next 7 daysWaves, next 7 days
Waves ease over the next few days. The biggest waves arrive on Wednesday 28: 5.4 ft with a period of 7 s, from the west-southwest (moderate).
Water temperature
Water temperature →The satellite measured 2.7 °F more yesterday than the model gives now: the water is probably warmer than the forecast says.
Water temperature changes how fish behave: in very cold or very warm water they feed less. The water is steady these days, with no sudden changes.
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 11:00 pm (local time).
Nearest buoy
This is a real measurement of the sea, not a forecast. Data from Met Office, Exeter, via the E.U. Copernicus Marine Service. Generated using E.U. Copernicus Marine Service Information (doi:10.48670/moi-00036).
Surf in Boulogne-sur-Mer today
Surf today
Poor- 2.4–3.7 ft surf at the shore, a fun size for most surfers
- 3.6 ft swell at 5 s from the west-southwest, short: weak, messy waves
- Light onshore wind (10 mph): a bit of chop
- First or last light of the day
- Rising tide (high tide at 1:01 pm)
- Light: First light 7:04 am · sunrise 7:38 am · sunset 5:36 pm · last light 6:10 pm
- Tide: high 12:44 am (30.0 ft), low 8:05 am (3.8 ft), high 1:01 pm (30.2 ft) and low 8:29 pm (3.7 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 57.6 °F: a 4/3 fullsuit (booties if you run cold).
- Energy: 57 kJ · Low power
Today’s surf at a glance
The best window, 7:04 am to 11:00 am, has a good size, though with a short-period swell and onshore 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.
Diving in Boulogne-sur-Mer today
Diving and snorkeling today
Likely visibility: fair- 3.0 ft swell at 5 s from the west-southwest: some surge on the bottom
- Light onshore wind (11 mph)
- 0.5 mph current toward the north-northwest, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 12:44 am (12:29–1:00 am), low tide 8:05 am (7:30–8:30 am), high tide 1:01 pm (12:46–1:20 pm) and low tide 8:29 pm (8:00–8:50 pm)
- Likely visibility: fair. Swell (up to 4.4 ft at 7 s) and rain (0.21 in) over the last few days have stirred up the water. Based on the last 24 hours of data.
- Water at 57.6 °F: a 7 mm wetsuit, with hood and booties.
- Snorkeling: better not, with these waves, wind or current.
- Night dive: dark from 6:10 pm. Waning gibbous (93%), rising at 6:24 pm: a bright night.
Your diving day at a glance
The best window, 1:30 pm to 2:10 pm, combines light wind, weak current and the sun high.
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.
Dive sites, wrecks and dive shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Cachalot 2.2 mi
- Harmatris 2.2 mi
- Saint Benoit Labre 2.2 mi
- Petit Antoine 2.3 mi
- Moorside 2.9 mi
- Belford 2.9 mi
- Mercator 3.1 mi
- Marie-Ange Loic 3.2 mi
- Virgo Sancta 3.2 mi
- Amandine 3.3 mi
- Tusnastabb 3.3 mi
- Wreck 2.4 mi
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 in Boulogne-sur-Mer
Now in Boulogne-sur-Mer
- Low / high
- 54 / 60 °F
- Rain
- 0.00 in · 0%
- Clouds
- 69%
- Humidity
- 83%
- Dew pointDew point
- 52 °F
- Visibility
- 20 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Fair · 31
- 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 (+0.01 inHg in 3 hours). Over the next 48 hours: +0.05 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 am | 3:00 am | 6:00 am | 9:00 am | 12:00 pm | 3:00 pm | 6:00 pm | 9:00 pm |
|---|---|---|---|---|---|---|---|---|
| Sky | Mainly clear | Mainly clear | Mainly clear | Partly cloudy | Overcast | Partly cloudy | Overcast | Overcast |
| Temperature | 56° | 55° | 55° | 56° | 59° | 59° | 59° | 58° |
| Wind (mph) | 10 WNW | 10 W | 10 W | 10 W | 10 WSW | 12 W | 12 W | 8 W |
| Gusts | 23 | 22 | 19 | 19 | 20 | 22 | 23 | 18 |
| Waves | 5.4 ft | 5.2 ft | 4.7 ft | 4.4 ft | 4.1 ft | 4.0 ft | 3.9 ft | 3.7 ft |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in |
- 12:00 am 57° 5 WNW 3.3 ft
- 3:00 am 50° 4 SE 2.9 ft
- 6:00 am 52° 3 SE 2.6 ft
- 9:00 am 53° 4 SE 2.2 ft
- 12:00 pm 58° 4 SE 2.0 ft
- 3:00 pm 60° 3 WNW 1.8 ft
- 6:00 pm 57° 5 ENE 1.6 ft
- 9:00 pm 53° 6 E 1.5 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 28 | 54 / 60 °F | 12 mph W | 5.4 ft | 12:44 am · 1:01 pm | |
| Thu 29 | 50 / 60 °F | 6 mph ESE | 3.3 ft | 1:23 am · 1:41 pm | |
| Fri 30 | 44 / 58 °F | 9 mph E | 1.4 ft | 2:06 am · 2:24 pm | |
| Sat 31 | 46 / 53 °F | 8 mph ENE | 1.5 ft | 2:52 am · 3:13 pm | |
| Sun 1 | 44 / 56 °F | 7 mph NNE | 1.4 ft | 3:46 am · 4:14 pm | |
| Mon 2 | 51 / 56 °F | 14 mph NNE | 2.9 ft | 4:59 am · 5:43 pm | |
| Tue 3 | 50 / 56 °F | 13 mph NE | 2.4 ft | 6:34 am · 7:19 pm | |
| Wed 4 | 42 / 51 °F | 10 mph ENE | 1.9 ft | 7:57 am · 8:32 pm | |
| Thu 5 | 38 / 49 °F | 11 mph ENE | 1.6 ft | 9:02 am · 9:31 pm | |
| Fri 6 | 39 / 49 °F | 12 mph E | 1.1 ft | 9:56 am · 10:20 pm | |
| Sat 7 | 36 / 49 °F | 9 mph ESE | 2.0 ft | 10:40 am · 11:02 pm | |
| Sun 8 | 46 / 56 °F | 9 mph S | 1.8 ft | 11:20 am · 11:39 pm | |
| Mon 9 | 51 / 58 °F | 12 mph S | 2.5 ft | 11:55 am | |
| Tue 10 | 54 / 59 °F | 17 mph SSW | 4.8 ft | 12:12 am · 12:26 pm |
- Thu 29 Fog 50° / 60° 3.3 ft
- Fri 30 Mainly clear 44° / 58° 1.4 ft
- Sat 31 Overcast 46° / 53° 1.5 ft
- Sun 1 Overcast 44° / 56° 1.4 ft
- Mon 2 Light showers 51° / 56° 2.9 ft
- Tue 3 Light drizzle 50° / 56° 2.4 ft
- Wed 4 Overcast 42° / 51° 1.9 ft
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.
- Normal Today, warmer than normal for late October (+3.6 °F; normal high: 56 °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 11:00 pm (local time).
The sun in Boulogne-sur-Mer
Sunrise and sunset
- First light 6:25 am
- Full dark 6:48 pm
- Civil dawn 7:04 am
- Civil dusk 6:10 pm
- Solar noon 12:37 pm (26° high)
- Daylight 9 h 58 min (−4 min)
- Evening golden hour 4:48 pm
- Full dark 6:48 pm
Golden hour and the day-night map
Today the sun is 92,359,971 mi away and looks 32′ 11″ across.
The moon in Boulogne-sur-Mer
Moon phase and position
Today the moon is 226,461 mi away and looks 32′ 47″ across.
Solunar periods
Today's activity: high- 1:15–3:15 am Major · the moon passes overhead · high activity
- 1:46–3:46 pm Major · the moon passes underfoot · high activity
- 10:33–11:33 am Minor · moonset · medium activity
- 5:54–6:54 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.
Where to fish in Boulogne-sur-Mer
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Jetée Nord-est 1.1 mi
- La crèche 2.2 mi
- Digue Carnot 2.2 mi
- Boat ramp 2.7 mi
- Boat ramp 2.9 mi
- Boat ramp 5.6 mi
- Bassin Napoléon 0.8 mi
- Alcium Pêche 0.7 mi
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
Gentle slopeThe bottom slopes gently: 16 ft deep 0.7 mi from shore and 33 ft at 0.75 mi.
From the shoreline (1.5 mi from Boulogne-sur-Mer) out to sea, heading west.
How far from shore
- 16 ft deep0.7 mi
- 33 ft deep0.75 mi
- 66 ft deep3 mi
- 164 ft deepnot within 3.1 mi
For fishing, swimming and diving
- Shore fishing. About 7.2 ft of water 330 ft out: long casts help, and so does a rising tide, which brings fish closer in.
- Swimming. The water gets deeper little by little, but a few dozen yards out you can no longer stand.
- Diving. Shallow near shore: you only reach 33 ft at 0.75 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
Phare Carnot de Boulogne-sur-Mer 2.3 mi northwest
- Light
- 2 + 1 white flashes every 15 s · Fl(2+1) W 15s
- Range
- 19 nautical miles (22 mi)
- Light height
- 82 ft above sea level
- Tower height
- 72 ft
- Built
- 1968
Other lighthouses nearby: Phare du Portel (2.9 mi southwest).
Light details: NGA List of Lights (USA); the rest from Wikidata. For reference only: not for navigation. Wikidata · Sources and licenses
Tides near Boulogne-sur-MerTides nearby
- Saint-Martin-Boulogne0.3 mi
- Outreau1.7 mi
- Le Portel2.1 mi
- Wimille2.8 mi
- Wimereux3.1 mi
- Équihen-Plage3.9 mi
- Ambleteuse5.9 mi
- Dannes9.5 mi
- Camiers11 mi
- Wissant11 mi
Boulogne-sur-Mer at a glance
- Town or city of about 47,013 people. Coordinates: 50.725° N, 1.614° E.
- It is 40 mi southwest of Dunkirk, the main place in Hauts-de-France. The sun rises 2 min later and sets 4 min later than in Dunkirk.
- The nearest tide station, Boulogne-sur-Mer, is 1.6 mi to the west.
- Its coast faces west.
- Beaches and harbors nearby: Plage des Bains (1.0 mi), Plage du Portel (2.2 mi), Plage d'Écault (4.6 mi).
Questions about Boulogne-sur-MerQuestions
What time is high tide today in Boulogne-sur-Mer?
Today in Boulogne-sur-Mer there are high tides at 12:44 am (30.0 ft) and 1:01 pm (30.2 ft) and low tides at 8:05 am and 8:29 pm. Tide coefficient 92.
What time is sunset today in Boulogne-sur-Mer?
At 5:36 pm. There is light until the end of civil twilight, at 6:10 pm.
What time is sunrise tomorrow in Boulogne-sur-Mer?
At 7:40 am. First light comes at 6:27 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 1:15–3:15 am, Minor 10:33–11:33 am, Major 1:46–3:46 pm, Minor 5:54–6:54 pm. Today's activity is high.
What's the weather like today in Boulogne-sur-Mer?
Overcast, from 54 °F to 60 °F, with a light breeze from the west (7 mph) and a 0% chance of rain.
How is the sea today in Boulogne-sur-Mer?
Slight (Douglas 3): 3.4 ft waves with a period of 7.3 s from the west-southwest. The water is 57.6 °F.
When is the best time to visit Boulogne-sur-Mer?
The best time to visit Boulogne-sur-Mer is from July to August: highs of 70 °F, about 9 rainy days a month and 6 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: Boulogne-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).