Sea weather in Fort-Mahon-Plage in Picardy All the beach weather in Fort-Mahon-Plage
All the essential weather information for enjoying the beach in Fort-Mahon-Plage in Picardy, for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.
Weather: When should you go to the beach in Fort-Mahon-Plage over the next 7 days?
Discover the best moment to go to the beach in Fort-Mahon-Plage in Picardy this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Fort-Mahon-Plage. You can see full forecasts by clicking on the day you want to see in the table below.
| Date | Outside temp. | Max wind | Our opinion | Details |
|---|---|---|---|---|
| Monday 15 December 2025 | 45°F to 52°F | 14.9mph | discouraged | all the sea weather |
| Tuesday 16 December 2025 | 50°F to 56°F | 4.4mph | discouraged | all the sea weather |
| Wednesday 17 December 2025 | 43°F to 50°F | 7.5mph | recommended | all the sea weather |
| Thursday 18 December 2025 | 43°F to 52°F | 20.5mph | discouraged | all the sea weather |
| Friday 19 December 2025 | 43°F to 52°F | 6.8mph | discouraged | all the sea weather |
| Saturday 20 December 2025 | 40°F to 43°F | 11.8mph | discouraged | all the sea weather |
| Sunday 21 December 2025 | 40°F to 43°F | 9.3mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Fort-Mahon-Plage
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 08:47 and will set at 16:51 on the beach(es) of Fort-Mahon-Plage. The outside temperature will be a high of 52°F t and a low of 45°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 16.8mph km/h (with gusts up to 25.5mph). Wave height will be up to 3.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | | |  | |  | | |
| Outside temperature | 7°C (45°F) | 7°C (45°F) | 8°C (46°F) | 7°C (45°F) | 9°C (48°F) | 10°C (51°F) | 8°C (46°F) | 10°C (50°F) |
| Perceived temperature | 4°C (39°F) | 4°C (39°F) | 4°C (38°F) | 3°C (38°F) | 6°C (42°F) | 8°C (46°F) | 5°C (41°F) | 7°C (45°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 85% | 80% | 81% | 86% | 80% | 79% | 88% | 83% |
| Barometric pressure | 1016 hPa | 1014 hPa | 1012 hPa | 1012 hPa | 1012 hPa | 1010 hPa | 1010 hPa | 1009 hPa |
| Cloud cover | 4% | 4% | 1% | 8% | 25% | 73% | 20% | 100% |
| Heat index | 7°C (45°F) | 7°C (45°F) | 8°C (46°F) | 7°C (45°F) | 9°C (48°F) | 10°C (51°F) | 8°C (46°F) | 10°C (50°F) |
| Dew point | 5°C (41°F) | 4°C (40°F) | 5°C (40°F) | 5°C (41°F) | 6°C (42°F) | 7°C (44°F) | 6°C (43°F) | 7°C (45°F) |
| Wind | ||||||||
| Speed | 18km/h (11mph) | 22km/h (13mph) | 27km/h (17mph) | 26km/h (16mph) | 24km/h (15mph) | 22km/h (14mph) | 19km/h (12mph) | 24km/h (15mph) |
| Gusts | 34km/h (21mph) | 39km/h (24mph) | 31km/h (19mph) | 41km/h (25mph) | 35km/h (22mph) | 34km/h (21mph) | 20km/h (12mph) | 41km/h (26mph) |
| Direction | 178° S | 178° S | 179° S | 183° S | 182° S | 186° S | 155° SSE | 159° SSE |
| Wind chill | 4°C (39°F) | 4°C (39°F) | 4°C (38°F) | 3°C (38°F) | 6°C (42°F) | 8°C (46°F) | 5°C (41°F) | 7°C (45°F) |
| Waves | ||||||||
| Height | 0.9m (3.0ft) | 1.0m (3.1ft) | 1.1m (3.5ft) | 1.1m (3.7ft) | 1.2m (3.8ft) | 1.1m (3.6ft) | 1.0m (3.1ft) | 0.9m (2.8ft) |
| Direction | 264° W | 266° W | 263° W | 263° W | 261° W | 265° W | 261° W | 261° W |
| Period | 10.4 sec. | 10.6 sec. | 7.7 sec. | 9.8 sec. | 10.7 sec. | 10.0 sec. | 6.7 sec. | 6.7 sec. |
| Significant height | 0.9m (3ft) | 0.9m (3ft) | 1.4m (4.6ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 0.9m (3ft) | 1.5m (4.9ft) | 1.4m (4.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 08:48 and will set at 16:51 on the beach(es) of Fort-Mahon-Plage. The outside temperature will be a high of 56°F t and a low of 50°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 16.2mph km/h (with gusts up to 26.7mph). Wave height will be up to 2.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | |  | | | | | | |
| Outside temperature | 11°C (51°F) | 10°C (50°F) | 11°C (51°F) | 10°C (51°F) | 12°C (53°F) | 12°C (53°F) | 10°C (51°F) | 10°C (51°F) |
| Perceived temperature | 8°C (46°F) | 7°C (45°F) | 8°C (46°F) | 8°C (47°F) | 10°C (50°F) | 11°C (51°F) | 9°C (49°F) | 10°C (49°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 82% | 85% | 81% | 84% | 79% | 80% | 85% | 91% |
| Barometric pressure | 1009 hPa | 1009 hPa | 1009 hPa | 1010 hPa | 1012 hPa | 1012 hPa | 1013 hPa | 1015 hPa |
| Cloud cover | 100% | 71% | 51% | 42% | 80% | 100% | 41% | 88% |
| Heat index | 11°C (51°F) | 10°C (50°F) | 11°C (51°F) | 10°C (51°F) | 12°C (53°F) | 12°C (53°F) | 10°C (51°F) | 10°C (51°F) |
| Dew point | 8°C (46°F) | 7°C (45°F) | 7°C (45°F) | 8°C (46°F) | 8°C (47°F) | 8°C (47°F) | 8°C (46°F) | 9°C (48°F) |
| Wind | ||||||||
| Speed | 26km/h (16mph) | 23km/h (14mph) | 21km/h (13mph) | 18km/h (11mph) | 16km/h (10mph) | 10km/h (6mph) | 9km/h (6mph) | 7km/h (4mph) |
| Gusts | 43km/h (27mph) | 39km/h (24mph) | 35km/h (22mph) | 31km/h (19mph) | 25km/h (16mph) | 17km/h (11mph) | 17km/h (11mph) | 12km/h (7mph) |
| Direction | 154° SSE | 163° SSE | 164° SSE | 158° SSE | 168° SSE | 169° S | 183° S | 234° SW |
| Wind chill | 8°C (46°F) | 7°C (45°F) | 8°C (46°F) | 8°C (47°F) | 10°C (50°F) | 11°C (51°F) | 9°C (49°F) | 10°C (49°F) |
| Waves | ||||||||
| Height | 0.8m (2.5ft) | 0.7m (2.3ft) | 0.7m (2.2ft) | 0.6m (2.1ft) | 0.6m (1.9ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.3m (1.1ft) |
| Direction | 267° W | 269° W | 269° W | 268° W | 267° W | 276° W | 276° W | 276° W |
| Period | 7.5 sec. | 7.8 sec. | 9.0 sec. | 8.1 sec. | 7.8 sec. | 7.3 sec. | 7.2 sec. | 9.3 sec. |
| Significant height | 1.2m (3.9ft) | 1.2m (3.9ft) | 0.9m (3ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 08:49 and will set at 16:51 on the beach(es) of Fort-Mahon-Plage. The outside temperature will be a high of 50°F t and a low of 43°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 9.3mph km/h (with gusts up to 14.3mph). Wave height will be up to 1.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | |  |  | | | | |
| Outside temperature | 10°C (50°F) | 9°C (48°F) | 9°C (47°F) | 9°C (49°F) | 10°C (49°F) | 9°C (48°F) | 6°C (44°F) | 7°C (44°F) |
| Perceived temperature | 8°C (47°F) | 8°C (46°F) | 8°C (46°F) | 7°C (45°F) | 8°C (47°F) | 7°C (45°F) | 5°C (41°F) | 4°C (39°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 94% | 94% | 95% | 91% | 80% | 77% | 82% | 87% |
| Barometric pressure | 1017 hPa | 1018 hPa | 1019 hPa | 1021 hPa | 1023 hPa | 1022 hPa | 1022 hPa | 1022 hPa |
| Cloud cover | 100% | 55% | 90% | 90% | 98% | 83% | 9% | 16% |
| Heat index | 10°C (50°F) | 9°C (48°F) | 9°C (47°F) | 9°C (49°F) | 10°C (49°F) | 9°C (48°F) | 6°C (44°F) | 7°C (44°F) |
| Dew point | 9°C (49°F) | 8°C (46°F) | 8°C (46°F) | 8°C (46°F) | 6°C (43°F) | 5°C (41°F) | 4°C (38°F) | 5°C (40°F) |
| Wind | ||||||||
| Speed | 13km/h (8mph) | 8km/h (5mph) | 5km/h (3mph) | 15km/h (9mph) | 8km/h (5mph) | 10km/h (6mph) | 8km/h (5mph) | 12km/h (8mph) |
| Gusts | 19km/h (12mph) | 14km/h (9mph) | 9km/h (6mph) | 22km/h (13mph) | 12km/h (7mph) | 14km/h (9mph) | 16km/h (10mph) | 23km/h (14mph) |
| Direction | 247° WSW | 225° SW | 302° WNW | 334° NNW | 296° WNW | 254° WSW | 202° SSW | 195° SSW |
| Wind chill | 8°C (47°F) | 8°C (46°F) | 8°C (46°F) | 7°C (45°F) | 8°C (47°F) | 7°C (45°F) | 5°C (41°F) | 4°C (39°F) |
| Waves | ||||||||
| Height | 0.3m (1.1ft) | 0.4m (1.2ft) | 0.3m (1.1ft) | 0.5m (1.6ft) | 0.4m (1.4ft) | 0.4m (1.2ft) | 0.4m (1.2ft) | 0.4m (1.3ft) |
| Direction | 276° W | 276° W | 276° W | 310° NW | 279° W | 276° W | 276° W | 276° W |
| Period | 13.7 sec. | 13.7 sec. | 11.0 sec. | 13.7 sec. | 13.8 sec. | 12.4 sec. | 13.5 sec. | 13.3 sec. |
| Significant height | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.6m (2ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 08:49 and will set at 16:52 on the beach(es) of Fort-Mahon-Plage. The outside temperature will be a high of 52°F t and a low of 43°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 22.4mph km/h (with gusts up to 28mph). Wave height will be up to 3.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 6°C (43°F) | 6°C (42°F) | 6°C (42°F) | 6°C (43°F) | 9°C (48°F) | 10°C (50°F) | 10°C (51°F) | 11°C (52°F) |
| Perceived temperature | 3°C (37°F) | 2°C (36°F) | 2°C (36°F) | 3°C (37°F) | 5°C (42°F) | 7°C (44°F) | 7°C (44°F) | 8°C (46°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 89% | 89% | 92% | 92% | 82% | 77% | 76% | 74% |
| Barometric pressure | 1022 hPa | 1020 hPa | 1019 hPa | 1017 hPa | 1014 hPa | 1011 hPa | 1010 hPa | 1009 hPa |
| Cloud cover | 19% | 26% | 25% | 26% | 27% | 22% | 53% | 100% |
| Heat index | 6°C (43°F) | 6°C (42°F) | 6°C (42°F) | 6°C (43°F) | 9°C (48°F) | 10°C (50°F) | 10°C (51°F) | 11°C (52°F) |
| Dew point | 4°C (40°F) | 4°C (39°F) | 4°C (40°F) | 5°C (41°F) | 6°C (43°F) | 6°C (44°F) | 6°C (43°F) | 7°C (44°F) |
| Wind | ||||||||
| Speed | 15km/h (9mph) | 17km/h (10mph) | 16km/h (10mph) | 20km/h (12mph) | 29km/h (18mph) | 33km/h (21mph) | 36km/h (23mph) | 33km/h (21mph) |
| Gusts | 28km/h (17mph) | 32km/h (20mph) | 30km/h (18mph) | 36km/h (22mph) | 45km/h (28mph) | 38km/h (24mph) | 41km/h (25mph) | 34km/h (21mph) |
| Direction | 179° S | 174° S | 171° S | 164° SSE | 169° SSE | 169° SSE | 179° S | 186° S |
| Wind chill | 3°C (37°F) | 2°C (36°F) | 2°C (36°F) | 3°C (37°F) | 5°C (42°F) | 7°C (44°F) | 7°C (44°F) | 8°C (46°F) |
| Waves | ||||||||
| Height | 0.5m (1.6ft) | 0.6m (1.9ft) | 0.7m (2.2ft) | 0.7m (2.3ft) | 0.8m (2.6ft) | 0.9m (2.9ft) | 1.0m (3.2ft) | 1.1m (3.7ft) |
| Direction | 265° W | 266° W | 265° W | 266° W | 266° W | 266° W | 255° WSW | 220° SW |
| Period | 13.0 sec. | 7.9 sec. | 5.6 sec. | 5.3 sec. | 5.8 sec. | 17.3 sec. | 6.3 sec. | 6.5 sec. |
| Significant height | 0.6m (2ft) | 0.6m (2ft) | 0.8m (2.6ft) | 0.9m (3ft) | 1.1m (3.6ft) | 0.9m (3ft) | 1.5m (4.9ft) | 1.5m (4.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) |
Sea weather on Friday 19 December 2025
On Friday 19 December 2025, the sun will rise at 08:50 and will set at 16:52 on the beach(es) of Fort-Mahon-Plage. The outside temperature will be a high of 52°F t and a low of 43°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 22.4mph km/h (with gusts up to 33.6mph). Wave height will be up to 4.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | | | | | | |  |
| Outside temperature | 11°C (51°F) | 11°C (52°F) | 11°C (51°F) | 9°C (47°F) | 8°C (47°F) | 8°C (47°F) | 7°C (45°F) | 6°C (43°F) |
| Perceived temperature | 7°C (45°F) | 8°C (47°F) | 7°C (45°F) | 5°C (41°F) | 5°C (42°F) | 6°C (43°F) | 6°C (42°F) | 4°C (39°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 84% | 86% | 80% | 77% | 69% | 69% | 74% | 80% |
| Barometric pressure | 1008 hPa | 1010 hPa | 1012 hPa | 1015 hPa | 1019 hPa | 1020 hPa | 1021 hPa | 1022 hPa |
| Cloud cover | 100% | 100% | 77% | 68% | 21% | 30% | 26% | 21% |
| Heat index | 11°C (51°F) | 11°C (52°F) | 11°C (51°F) | 9°C (47°F) | 8°C (47°F) | 8°C (47°F) | 7°C (45°F) | 6°C (43°F) |
| Dew point | 8°C (47°F) | 9°C (48°F) | 7°C (45°F) | 5°C (41°F) | 3°C (37°F) | 3°C (37°F) | 3°C (37°F) | 3°C (38°F) |
| Wind | ||||||||
| Speed | 36km/h (22mph) | 32km/h (20mph) | 32km/h (20mph) | 27km/h (17mph) | 19km/h (12mph) | 13km/h (8mph) | 8km/h (5mph) | 11km/h (7mph) |
| Gusts | 54km/h (34mph) | 49km/h (30mph) | 48km/h (30mph) | 40km/h (25mph) | 28km/h (18mph) | 21km/h (13mph) | 17km/h (10mph) | 22km/h (14mph) |
| Direction | 185° S | 216° SW | 242° WSW | 292° WNW | 300° WNW | 291° WNW | 249° WSW | 211° SSW |
| Wind chill | 7°C (45°F) | 8°C (47°F) | 7°C (45°F) | 5°C (41°F) | 5°C (42°F) | 6°C (43°F) | 6°C (42°F) | 4°C (39°F) |
| Waves | ||||||||
| Height | 1.2m (3.9ft) | 1.3m (4.2ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.0m (3.3ft) | 0.9m (3.0ft) | 0.8m (2.6ft) | 0.7m (2.3ft) |
| Direction | 239° WSW | 243° WSW | 259° WSW | 267° W | 276° W | 280° W | 279° W | 279° W |
| Period | 18.9 sec. | 7.0 sec. | 7.4 sec. | 7.7 sec. | 7.7 sec. | 10.2 sec. | 10.0 sec. | 9.4 sec. |
| Significant height | 1.3m (4.3ft) | 1.6m (5.2ft) | 1.5m (4.9ft) | 1.5m (4.9ft) | 1.4m (4.6ft) | 1.1m (3.6ft) | 1.0m (3.3ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 9°C (49°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) |
Sea weather on Saturday 20 December 2025
On Saturday 20 December 2025, the sun will rise at 08:51 and will set at 16:52 on the beach(es) of Fort-Mahon-Plage. The outside temperature will be a high of 43°F t and a low of 40°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 11.8mph km/h (with gusts up to 20.5mph). Wave height will be up to 2.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | | |
| Outside temperature | 6°C (43°F) | 5°C (41°F) | 4°C (40°F) | 4°C (40°F) | 6°C (42°F) | 6°C (43°F) | 4°C (40°F) | 4°C (39°F) |
| Perceived temperature | 3°C (37°F) | 2°C (36°F) | 1°C (34°F) | 1°C (33°F) | 2°C (36°F) | 3°C (37°F) | 0°C (33°F) | 0°C (32°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 85% | 87% | 86% | 85% | 76% | 74% | 81% | 83% |
| Barometric pressure | 1022 hPa | 1021 hPa | 1020 hPa | 1019 hPa | 1018 hPa | 1016 hPa | 1014 hPa | 1013 hPa |
| Cloud cover | 20% | 9% | 4% | 4% | 4% | 7% | 9% | 8% |
| Heat index | 6°C (43°F) | 5°C (41°F) | 4°C (40°F) | 4°C (40°F) | 6°C (42°F) | 6°C (43°F) | 4°C (40°F) | 4°C (39°F) |
| Dew point | 4°C (38°F) | 3°C (38°F) | 2°C (36°F) | 2°C (36°F) | 2°C (35°F) | 2°C (35°F) | 1°C (34°F) | 2°C (35°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 15km/h (9mph) | 15km/h (9mph) | 15km/h (10mph) | 18km/h (11mph) | 18km/h (11mph) | 19km/h (12mph) | 19km/h (12mph) |
| Gusts | 27km/h (17mph) | 28km/h (18mph) | 29km/h (18mph) | 29km/h (18mph) | 31km/h (19mph) | 33km/h (21mph) | 26km/h (16mph) | 30km/h (19mph) |
| Direction | 206° SSW | 207° SSW | 196° SSW | 182° S | 183° S | 175° S | 162° SSE | 160° SSE |
| Wind chill | 3°C (37°F) | 2°C (36°F) | 1°C (34°F) | 1°C (33°F) | 2°C (36°F) | 3°C (37°F) | 0°C (33°F) | 0°C (32°F) |
| Waves | ||||||||
| Height | 0.7m (2.3ft) | 0.6m (2.0ft) | 0.6m (2.0ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.3m (1.0ft) |
| Direction | 279° W | 279° W | 279° W | 279° W | 279° W | 279° W | 279° W | 279° W |
| Period | 9.7 sec. | 9.6 sec. | 9.4 sec. | 9.2 sec. | 9.1 sec. | 9.0 sec. | 8.9 sec. | 8.8 sec. |
| Significant height | 0.9m (3ft) | 0.9m (3ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) |
Sea weather on Sunday 21 December 2025
On Sunday 21 December 2025, the sun will rise at 08:51 and will set at 16:53 on the beach(es) of Fort-Mahon-Plage. The outside temperature will be a high of 43°F t and a low of 40°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 11.8mph km/h (with gusts up to 20.5mph). Wave height will be up to 3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 4°C (39°F) | 4°C (38°F) | 4°C (38°F) | 4°C (39°F) | 6°C (42°F) | 6°C (42°F) | 4°C (39°F) | 5°C (40°F) |
| Perceived temperature | 0°C (32°F) | -0°C (31°F) | -0°C (31°F) | 0°C (32°F) | 2°C (35°F) | 2°C (36°F) | 1°C (33°F) | 1°C (34°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 81% | 81% | 85% | 85% | 79% | 77% | 84% | 83% |
| Barometric pressure | 1012 hPa | 1011 hPa | 1010 hPa | 1009 hPa | 1009 hPa | 1008 hPa | 1008 hPa | 1009 hPa |
| Cloud cover | 7% | 46% | 80% | 63% | 50% | 25% | 48% | 89% |
| Heat index | 4°C (39°F) | 4°C (38°F) | 4°C (38°F) | 4°C (39°F) | 6°C (42°F) | 6°C (42°F) | 4°C (39°F) | 5°C (40°F) |
| Dew point | 1°C (34°F) | 1°C (33°F) | 1°C (34°F) | 2°C (35°F) | 2°C (36°F) | 2°C (35°F) | 2°C (35°F) | 2°C (35°F) |
| Wind | ||||||||
| Speed | 19km/h (12mph) | 18km/h (11mph) | 18km/h (11mph) | 18km/h (11mph) | 18km/h (11mph) | 18km/h (11mph) | 16km/h (10mph) | 15km/h (9mph) |
| Gusts | 33km/h (21mph) | 32km/h (20mph) | 31km/h (19mph) | 30km/h (18mph) | 28km/h (17mph) | 30km/h (19mph) | 31km/h (19mph) | 26km/h (16mph) |
| Direction | 157° SSE | 155° SSE | 153° SSE | 153° SSE | 156° SSE | 157° SSE | 154° SSE | 163° SSE |
| Wind chill | 0°C (32°F) | -0°C (31°F) | -0°C (31°F) | 0°C (32°F) | 2°C (35°F) | 2°C (36°F) | 1°C (33°F) | 1°C (34°F) |
| Waves | ||||||||
| Height | 0.3m (1.0ft) | 0.4m (1.3ft) | 0.6m (2.0ft) | 0.7m (2.3ft) | 0.9m (3.0ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.6m (2.0ft) |
| Direction | 279° W | 278° W | 271° W | 271° W | 274° W | 272° W | 270° W | 272° W |
| Period | 8.7 sec. | 8.5 sec. | 8.4 sec. | 6.2 sec. | 5.7 sec. | 6.0 sec. | 6.4 sec. | 7.7 sec. |
| Significant height | 0.5m (1.6ft) | 0.6m (2ft) | 0.7m (2.3ft) | 1.0m (3.3ft) | 1.3m (4.3ft) | 1.1m (3.6ft) | 1.0m (3.3ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) |