France · Somme
Plage Surveillee de Fort-Mahon
Somme, France
On the beach
Right now
Live conditions from Open-Meteo, refreshed hourly.
7-day outlook
7-day marine forecast from Open-Meteo.
Sea temperature
Next 7 days, °C
Wave height
Next 7 days, metres
View as table
| Day | Sea temp (°C) | Wave height (m) |
|---|---|---|
| Wed 2 | 20.4 | 1.2 |
| Thu 3 | 20.3 | 1.8 |
| Fri 4 | 20.5 | 1.9 |
| Sat 5 | 20.6 | 1.4 |
| Sun 6 | 20.6 | 0.5 |
| Mon 7 | 20.6 | 0.7 |
| Tue 8 | 20.5 | 1.9 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Good2015
- 2016: Good2016
- 2017: Good2017
- 2018: Good2018
- 2019: Excellent2019
- 2020: Excellent2020
- 2021: Excellent2021
- 2022: Excellent2022
- 2023: Excellent2023
- 2024: Good2024
- 2025: Good2025
Good in the most recent season, and 11 of 11 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Good |
| 2016 | Good |
| 2017 | Good |
| 2018 | Good |
| 2019 | Excellent |
| 2020 | Excellent |
| 2021 | Excellent |
| 2022 | Excellent |
| 2023 | Excellent |
| 2024 | Good |
| 2025 | Good |
Typical sea temperature by month
Modeled estimatePlausible seasonal climatology derived from latitude, for illustration — not a measured average.
Monthly sea temperature
Typical range across the year, °C
View as table
| Month | Typical sea temp (°C) |
|---|---|
| Jan | 14 |
| Feb | 13 |
| Mar | 14 |
| Apr | 16 |
| May | 19 |
| Jun | 22 |
| Jul | 24 |
| Aug | 25 |
| Sep | 24 |
| Oct | 22 |
| Nov | 19 |
| Dec | 16 |
Location & nearby beaches
Nearby beaches
- 1.7 km
- Berck Centre Plage7.7 kmPas-de-Calais
- Merlimont Centre Plage14 kmPas-de-Calais
- Cucq Stella- Plage16 kmPas-de-Calais
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- By car: there's parking about ~370 m from the beach.
- Bus stop: Rue la Fontaine, about ~500 m away.
Food, stays & town
- Nearest village: Fort-Mahon-Plage, about ~900 m away.
- 23 places to eat within 1 km Closest is L'effet mer, about ~70 m away.
- 3 places to stay mapped nearby Closest is Hôtel de la Terrasse, about ~40 m away.
- 5 shops nearby, the closest about ~220 m away
What kind of beach is this?
This beach belongs to a small coastal village. It's usually calmer than a resort or town beach, though a popular village spot can still fill up on the best summer days.
Estimated from OpenStreetMap surroundings data (ODbL).
- Families
Is the water clean at Plage Surveillee de Fort-Mahon?
Plage Surveillee de Fort-Mahon is a coastal bathing site with an official EU Bathing Water rating of Good for the 2025 season — meets the EU bathing-water standard in the latest annual assessment. That annual classification comes from the EU Bathing Water Directive: national authorities test for two indicator bacteria, intestinal enterococci and E. coli, throughout the bathing season, then report the full-season results to the European Environment Agency (EEA) the following spring — the 2025 season's rating was published in spring 2026, and the 2026 season won't be rated until spring 2027. In addition to that yearly rating, some national authorities — for Croatia, the national environmental authority — publish individual water sample results during the season itself, ahead of the annual report. On site you'll find Lifeguard, Toilets, and Beach bar. There's parking about ~370 m from the beach.
That rating has been consistent: every one of the 11 classified seasons on record has come back Excellent or Good. The most reliable swimming window here typically runs from July–September, with the sea usually at its warmest around August. Outside that window the water is cooler and often quieter. It's been a consistently reliable spot too — the rating has held at Good for 2 straight years. The nearest town, Fort-Mahon-Plage, is about ~900 m away.
That “Good” label comes from a full season of official water sampling, not a single test — it's one step on a four-point scale (Excellent, Good, Sufficient, Poor) reassessed once a year. Today's actual conditions can differ from the seasonal average, so for a live snapshot see the “Right now” and 7-day outlook panels above. There are 23 places to eat within a kilometre — L'effet mer is the closest, about ~70 m away.
Frequently asked questions
Is it safe to go in the water at Plage Surveillee de Fort-Mahon?
Yes. Plage Surveillee de Fort-Mahon's official 2025 rating is Good — one notch below the top classification — and 11 of 11 classified seasons here have rated Excellent or Good. It's also held steady at Good for 2 straight years.
What temperature is the sea at Plage Surveillee de Fort-Mahon right now?
The latest reading puts the sea at Plage Surveillee de Fort-Mahon at around 20°C — the “Right now” panel above has the full live picture. That's the reading right off Somme. On the modeled climatology here, August usually runs warmest.
When should you plan a swimming trip to Plage Surveillee de Fort-Mahon?
For the warmest water, aim for July–September — that's when the modeled sea temperature is typically at its best. That applies to the water around Somme. Within that window, August is typically the single warmest month.
How is bathing water quality actually assessed?
Once a year, national authorities report a full season of testing for intestinal enterococci and E. coli to the European Environment Agency, which grades the season Excellent, Good, Sufficient or Poor under the EU Bathing Water Directive. A handful of countries, including Croatia via IZOR, also publish individual in-season samples ahead of that report — Plage Surveillee de Fort-Mahon doesn't have that feed set up yet.
Is there parking near Plage Surveillee de Fort-Mahon?
By car, there's parking about ~370 m from the beach. By bus, the nearest stop is Rue la Fontaine, about ~500 m away. The nearest town is Fort-Mahon-Plage, about ~900 m away.