Sea weather in Gujan-Mestras in Gironde All the beach weather in Gujan-Mestras
All the essential weather information for enjoying the beach in Gujan-Mestras in Gironde, 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 Gujan-Mestras over the next 7 days?
Discover the best moment to go to the beach in Gujan-Mestras in Gironde this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Gujan-Mestras. 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 | 50°F to 58°F | 11.8mph | discouraged | all the sea weather |
| Tuesday 16 December 2025 | 52°F to 58°F | 5.6mph | recommended | all the sea weather |
| Wednesday 17 December 2025 | 52°F to 56°F | 5mph | recommended | all the sea weather |
| Thursday 18 December 2025 | 50°F to 59°F | 10.6mph | discouraged | all the sea weather |
| Friday 19 December 2025 | 50°F to 56°F | 7.5mph | discouraged | all the sea weather |
| Saturday 20 December 2025 | 45°F to 49°F | 9.3mph | recommended | all the sea weather |
| Sunday 21 December 2025 | 47°F to 50°F | 3.7mph | recommended | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Gujan-Mestras
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 08:34 and will set at 17:25 on the beach(es) of Gujan-Mestras. The outside temperature will be a high of 58°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 16.8mph km/h (with gusts up to 26.7mph). Wave height will be up to 7.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  |  | |  | | | | |
| Outside temperature | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 13°C (55°F) | 14°C (56°F) | 13°C (55°F) | 12°C (54°F) |
| Perceived temperature | 8°C (46°F) | 7°C (45°F) | 7°C (44°F) | 7°C (45°F) | 10°C (50°F) | 12°C (53°F) | 11°C (51°F) | 10°C (50°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 86% | 85% | 82% | 76% | 63% | 64% | 73% | 80% |
| Barometric pressure | 1018 hPa | 1016 hPa | 1014 hPa | 1012 hPa | 1012 hPa | 1009 hPa | 1008 hPa | 1007 hPa |
| Cloud cover | 0% | 5% | 12% | 20% | 49% | 46% | 46% | 46% |
| Heat index | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 13°C (55°F) | 14°C (56°F) | 13°C (55°F) | 12°C (54°F) |
| Dew point | 8°C (47°F) | 8°C (46°F) | 7°C (44°F) | 6°C (43°F) | 6°C (43°F) | 7°C (45°F) | 8°C (46°F) | 9°C (48°F) |
| Wind | ||||||||
| Speed | 21km/h (13mph) | 21km/h (13mph) | 24km/h (15mph) | 25km/h (15mph) | 27km/h (17mph) | 23km/h (14mph) | 21km/h (13mph) | 19km/h (12mph) |
| Gusts | 33km/h (20mph) | 33km/h (21mph) | 39km/h (24mph) | 29km/h (18mph) | 43km/h (27mph) | 37km/h (23mph) | 22km/h (14mph) | 36km/h (23mph) |
| Direction | 144° SE | 146° SE | 145° SE | 136° SE | 148° SSE | 138° SE | 144° SE | 131° SE |
| Wind chill | 8°C (46°F) | 7°C (45°F) | 7°C (44°F) | 7°C (45°F) | 10°C (50°F) | 12°C (53°F) | 11°C (51°F) | 10°C (50°F) |
| Waves | ||||||||
| Height | 2.2m (7.3ft) | 2.2m (7.4ft) | 2.2m (7.3ft) | 2.2m (7.2ft) | 2.1m (7.1ft) | 1.9m (6.3ft) | 1.9m (6.2ft) | 1.9m (6.1ft) |
| Direction | 282° WNW | 281° W | 279° W | 278° W | 277° W | 278° W | 278° W | 278° W |
| Period | 13.6 sec. | 13.7 sec. | 14.1 sec. | 14.2 sec. | 14.3 sec. | 13.8 sec. | 13.5 sec. | 13.3 sec. |
| Significant height | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.6m (2ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 08:35 and will set at 17:25 on the beach(es) of Gujan-Mestras. The outside temperature will be a high of 58°F t and a low of 52°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 11.2mph km/h (with gusts up to 20.5mph). Wave height will be up to 7.5ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | |  | | | |
| Outside temperature | 12°C (53°F) | 12°C (54°F) | 11°C (52°F) | 12°C (53°F) | 13°C (55°F) | 14°C (57°F) | 13°C (55°F) | 14°C (56°F) |
| Perceived temperature | 10°C (49°F) | 10°C (51°F) | 9°C (49°F) | 10°C (51°F) | 12°C (54°F) | 14°C (57°F) | 13°C (55°F) | 13°C (56°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 80% | 81% | 88% | 83% | 75% | 72% | 76% | 78% |
| Barometric pressure | 1006 hPa | 1006 hPa | 1006 hPa | 1008 hPa | 1011 hPa | 1011 hPa | 1014 hPa | 1016 hPa |
| Cloud cover | 47% | 47% | 46% | 55% | 63% | 48% | 33% | 22% |
| Heat index | 12°C (53°F) | 12°C (54°F) | 11°C (52°F) | 12°C (53°F) | 13°C (55°F) | 14°C (57°F) | 13°C (55°F) | 14°C (56°F) |
| Dew point | 8°C (47°F) | 9°C (48°F) | 9°C (49°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 10°C (50°F) |
| Wind | ||||||||
| Speed | 18km/h (11mph) | 17km/h (11mph) | 17km/h (11mph) | 12km/h (7mph) | 10km/h (6mph) | 6km/h (4mph) | 7km/h (4mph) | 9km/h (6mph) |
| Gusts | 33km/h (21mph) | 29km/h (18mph) | 30km/h (19mph) | 20km/h (12mph) | 16km/h (10mph) | 10km/h (6mph) | 13km/h (8mph) | 14km/h (9mph) |
| Direction | 133° SE | 133° SE | 118° ESE | 140° SE | 119° ESE | 153° SSE | 173° S | 186° S |
| Wind chill | 10°C (49°F) | 10°C (51°F) | 9°C (49°F) | 10°C (51°F) | 12°C (54°F) | 14°C (57°F) | 13°C (55°F) | 13°C (56°F) |
| Waves | ||||||||
| Height | 1.9m (6.2ft) | 2.0m (6.6ft) | 2.1m (6.8ft) | 2.1m (6.9ft) | 2.1m (6.9ft) | 2.2m (7.3ft) | 2.2m (7.2ft) | 2.3m (7.4ft) |
| Direction | 277° W | 277° W | 278° W | 279° W | 280° W | 279° W | 279° W | 279° W |
| Period | 13.2 sec. | 13.2 sec. | 13.8 sec. | 14.0 sec. | 14.1 sec. | 14.6 sec. | 15.2 sec. | 14.9 sec. |
| Significant height | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.3m (1ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 12°C (54°F) | 12°C (54°F) | 12°C (54°F) | 12°C (54°F) | 12°C (54°F) | 12°C (54°F) | 12°C (54°F) | 12°C (54°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 08:36 and will set at 17:25 on the beach(es) of Gujan-Mestras. The outside temperature will be a high of 56°F t and a low of 52°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 8.1mph km/h (with gusts up to 12.4mph). Wave height will be up to 8.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | | |
| Outside temperature | 13°C (56°F) | 12°C (54°F) | 12°C (54°F) | 13°C (55°F) | 13°C (55°F) | 12°C (54°F) | 11°C (52°F) | 12°C (53°F) |
| Perceived temperature | 13°C (55°F) | 11°C (52°F) | 11°C (52°F) | 11°C (53°F) | 12°C (54°F) | 11°C (52°F) | 12°C (53°F) | 11°C (51°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 85% | 87% | 81% | 74% | 80% | 79% | 80% | 81% |
| Barometric pressure | 1018 hPa | 1019 hPa | 1021 hPa | 1023 hPa | 1024 hPa | 1023 hPa | 1023 hPa | 1023 hPa |
| Cloud cover | 43% | 33% | 99% | 100% | 90% | 73% | 33% | 14% |
| Heat index | 13°C (56°F) | 12°C (54°F) | 12°C (54°F) | 13°C (55°F) | 13°C (55°F) | 12°C (54°F) | 11°C (52°F) | 12°C (53°F) |
| Dew point | 11°C (51°F) | 10°C (50°F) | 9°C (48°F) | 8°C (47°F) | 9°C (48°F) | 9°C (48°F) | 8°C (46°F) | 9°C (47°F) |
| Wind | ||||||||
| Speed | 10km/h (6mph) | 13km/h (8mph) | 12km/h (7mph) | 13km/h (8mph) | 7km/h (4mph) | 11km/h (7mph) | 3km/h (2mph) | 8km/h (5mph) |
| Gusts | 16km/h (10mph) | 20km/h (12mph) | 17km/h (11mph) | 19km/h (12mph) | 10km/h (6mph) | 16km/h (10mph) | 6km/h (3mph) | 13km/h (8mph) |
| Direction | 266° W | 326° NNW | 319° NW | 301° WNW | 327° NNW | 320° NW | 334° NNW | 176° S |
| Wind chill | 13°C (55°F) | 11°C (52°F) | 11°C (52°F) | 11°C (53°F) | 12°C (54°F) | 11°C (52°F) | 12°C (53°F) | 11°C (51°F) |
| Waves | ||||||||
| Height | 2.4m (7.9ft) | 2.5m (8.2ft) | 2.5m (8.2ft) | 2.4m (7.9ft) | 2.3m (7.5ft) | 2.0m (6.5ft) | 1.9m (6.3ft) | 1.8m (6.0ft) |
| Direction | 279° W | 279° W | 278° W | 278° W | 278° W | 279° W | 279° W | 279° W |
| Period | 14.7 sec. | 14.5 sec. | 14.4 sec. | 14.2 sec. | 13.9 sec. | 13.5 sec. | 13.4 sec. | 13.2 sec. |
| Significant height | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.2m (0.7ft) | 0.3m (1ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 08:36 and will set at 17:26 on the beach(es) of Gujan-Mestras. The outside temperature will be a high of 59°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 18mph km/h (with gusts up to 29.2mph). Wave height will be up to 10.8ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | |  |  |
| Outside temperature | 11°C (52°F) | 10°C (51°F) | 10°C (51°F) | 11°C (51°F) | 13°C (55°F) | 15°C (59°F) | 14°C (58°F) | 13°C (55°F) |
| Perceived temperature | 9°C (48°F) | 8°C (46°F) | 8°C (46°F) | 8°C (46°F) | 11°C (51°F) | 13°C (55°F) | 12°C (54°F) | 11°C (52°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 84% | 88% | 88% | 82% | 66% | 60% | 71% | 84% |
| Barometric pressure | 1022 hPa | 1022 hPa | 1019 hPa | 1018 hPa | 1016 hPa | 1014 hPa | 1014 hPa | 1016 hPa |
| Cloud cover | 11% | 36% | 12% | 15% | 23% | 57% | 70% | 100% |
| Heat index | 11°C (52°F) | 10°C (51°F) | 10°C (51°F) | 11°C (51°F) | 13°C (55°F) | 15°C (59°F) | 14°C (58°F) | 13°C (55°F) |
| Dew point | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (46°F) | 7°C (44°F) | 7°C (45°F) | 9°C (48°F) | 10°C (50°F) |
| Wind | ||||||||
| Speed | 15km/h (9mph) | 18km/h (11mph) | 23km/h (15mph) | 28km/h (18mph) | 28km/h (17mph) | 29km/h (18mph) | 26km/h (16mph) | 17km/h (10mph) |
| Gusts | 24km/h (15mph) | 30km/h (18mph) | 36km/h (23mph) | 45km/h (28mph) | 43km/h (27mph) | 47km/h (29mph) | 32km/h (20mph) | 25km/h (15mph) |
| Direction | 134° SE | 140° SE | 144° SE | 147° SSE | 149° SSE | 158° SSE | 192° SSW | 276° W |
| Wind chill | 9°C (48°F) | 8°C (46°F) | 8°C (46°F) | 8°C (46°F) | 11°C (51°F) | 13°C (55°F) | 12°C (54°F) | 11°C (52°F) |
| Waves | ||||||||
| Height | 1.7m (5.6ft) | 1.6m (5.2ft) | 1.5m (4.9ft) | 1.6m (5.2ft) | 2.1m (6.9ft) | 2.7m (8.9ft) | 3.1m (10.1ft) | 3.3m (10.8ft) |
| Direction | 279° W | 279° W | 281° W | 282° WNW | 279° W | 278° W | 277° W | 277° W |
| Period | 13.1 sec. | 13.0 sec. | 12.7 sec. | 12.4 sec. | 19.2 sec. | 22.4 sec. | 21.4 sec. | 20.8 sec. |
| Significant height | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.7m (2.3ft) | 0.6m (2ft) | 0.6m (2ft) | 0.7m (2.3ft) | 0.8m (2.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) |
Sea weather on Friday 19 December 2025
On Friday 19 December 2025, the sun will rise at 08:37 and will set at 17:26 on the beach(es) of Gujan-Mestras. The outside temperature will be a high of 56°F t and a low of 50°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 19.9mph km/h (with gusts up to 27.3mph). Wave height will be up to 12.8ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | | |
| Outside temperature | 12°C (54°F) | 12°C (54°F) | 12°C (53°F) | 11°C (52°F) | 12°C (54°F) | 12°C (53°F) | 10°C (51°F) | 10°C (49°F) |
| Perceived temperature | 11°C (51°F) | 11°C (51°F) | 9°C (47°F) | 11°C (51°F) | 11°C (51°F) | 10°C (50°F) | 9°C (47°F) | 8°C (46°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 90% | 89% | 88% | 83% | 72% | 72% | 72% | 74% |
| Barometric pressure | 1017 hPa | 1017 hPa | 1017 hPa | 1020 hPa | 1021 hPa | 1022 hPa | 1022 hPa | 1023 hPa |
| Cloud cover | 96% | 100% | 100% | 100% | 51% | 63% | 28% | 14% |
| Heat index | 12°C (54°F) | 12°C (54°F) | 12°C (53°F) | 11°C (52°F) | 12°C (54°F) | 12°C (53°F) | 10°C (51°F) | 10°C (49°F) |
| Dew point | 11°C (51°F) | 11°C (51°F) | 10°C (49°F) | 8°C (47°F) | 7°C (45°F) | 7°C (44°F) | 6°C (42°F) | 5°C (42°F) |
| Wind | ||||||||
| Speed | 15km/h (9mph) | 19km/h (12mph) | 32km/h (20mph) | 6km/h (4mph) | 14km/h (9mph) | 19km/h (12mph) | 15km/h (9mph) | 12km/h (7mph) |
| Gusts | 22km/h (14mph) | 27km/h (17mph) | 44km/h (27mph) | 8km/h (5mph) | 21km/h (13mph) | 28km/h (17mph) | 24km/h (15mph) | 19km/h (12mph) |
| Direction | 194° SSW | 193° SSW | 336° NNW | 357° N | 297° WNW | 325° NW | 350° N | 135° SE |
| Wind chill | 11°C (51°F) | 11°C (51°F) | 9°C (47°F) | 11°C (51°F) | 11°C (51°F) | 10°C (50°F) | 9°C (47°F) | 8°C (46°F) |
| Waves | ||||||||
| Height | 3.2m (10.6ft) | 3.2m (10.4ft) | 3.1m (10.1ft) | 3.4m (11.2ft) | 3.8m (12.5ft) | 3.9m (12.8ft) | 3.6m (11.8ft) | 3.4m (11.2ft) |
| Direction | 277° W | 278° W | 278° W | 278° W | 277° W | 276° W | 276° W | 276° W |
| Period | 19.8 sec. | 19.3 sec. | 18.3 sec. | 18.0 sec. | 17.8 sec. | 17.5 sec. | 16.9 sec. | 16.2 sec. |
| Significant height | 0.7m (2.3ft) | 0.6m (2ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.2m (0.7ft) | 0.1m (0.3ft) | 0.2m (0.7ft) | 0.4m (1.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) |
Sea weather on Saturday 20 December 2025
On Saturday 20 December 2025, the sun will rise at 08:37 and will set at 17:27 on the beach(es) of Gujan-Mestras. The outside temperature will be a high of 49°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 9.3mph km/h (with gusts up to 16.2mph). Wave height will be up to 10.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | |  | | | | |
| Outside temperature | 9°C (48°F) | 8°C (46°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 8°C (47°F) | 8°C (46°F) | 8°C (46°F) |
| Perceived temperature | 7°C (45°F) | 7°C (44°F) | 6°C (42°F) | 6°C (42°F) | 7°C (44°F) | 7°C (45°F) | 6°C (43°F) | 5°C (42°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 80% | 82% | 81% | 79% | 70% | 65% | 68% | 76% |
| Barometric pressure | 1023 hPa | 1022 hPa | 1021 hPa | 1020 hPa | 1019 hPa | 1017 hPa | 1015 hPa | 1013 hPa |
| Cloud cover | 12% | 8% | 5% | 3% | 2% | 5% | 6% | 7% |
| Heat index | 9°C (48°F) | 8°C (46°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 8°C (47°F) | 8°C (46°F) | 8°C (46°F) |
| Dew point | 6°C (42°F) | 5°C (41°F) | 4°C (40°F) | 4°C (39°F) | 2°C (36°F) | 2°C (36°F) | 2°C (36°F) | 4°C (39°F) |
| Wind | ||||||||
| Speed | 10km/h (6mph) | 8km/h (5mph) | 8km/h (5mph) | 8km/h (5mph) | 6km/h (4mph) | 7km/h (4mph) | 11km/h (7mph) | 15km/h (10mph) |
| Gusts | 15km/h (10mph) | 13km/h (8mph) | 13km/h (8mph) | 12km/h (7mph) | 10km/h (6mph) | 12km/h (8mph) | 21km/h (13mph) | 26km/h (16mph) |
| Direction | 36° NE | 45° NE | 72° ENE | 108° ESE | 157° SSE | 180° S | 166° SSE | 151° SSE |
| Wind chill | 7°C (45°F) | 7°C (44°F) | 6°C (42°F) | 6°C (42°F) | 7°C (44°F) | 7°C (45°F) | 6°C (43°F) | 5°C (42°F) |
| Waves | ||||||||
| Height | 3.1m (10.2ft) | 2.9m (9.5ft) | 2.7m (8.9ft) | 2.6m (8.5ft) | 2.4m (7.9ft) | 2.3m (7.5ft) | 2.2m (7.2ft) | 2.1m (6.9ft) |
| Direction | 277° W | 277° W | 278° W | 278° W | 278° W | 279° W | 280° W | 281° W |
| Period | 15.8 sec. | 15.3 sec. | 14.7 sec. | 14.5 sec. | 14.3 sec. | 14.1 sec. | 13.7 sec. | 13.3 sec. |
| Significant height | 0.3m (1ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.2m (0.7ft) | 0.2m (0.7ft) | 0.3m (1ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) |
Sea weather on Sunday 21 December 2025
On Sunday 21 December 2025, the sun will rise at 08:38 and will set at 17:27 on the beach(es) of Gujan-Mestras. The outside temperature will be a high of 50°F t and a low of 47°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 10.6mph km/h (with gusts up to 16.2mph). Wave height will be up to 7.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 8°C (47°F) | 9°C (47°F) | 9°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 9°C (49°F) | 9°C (48°F) |
| Perceived temperature | 6°C (42°F) | 6°C (43°F) | 7°C (45°F) | 8°C (46°F) | 8°C (46°F) | 8°C (47°F) | 8°C (47°F) | 8°C (46°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 80% | 82% | 77% | 79% | 83% | 82% | 81% | 81% |
| Barometric pressure | 1011 hPa | 1010 hPa | 1009 hPa | 1009 hPa | 1009 hPa | 1008 hPa | 1009 hPa | 1009 hPa |
| Cloud cover | 69% | 62% | 81% | 95% | 92% | 89% | 70% | 87% |
| Heat index | 8°C (47°F) | 9°C (47°F) | 9°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 9°C (49°F) | 9°C (48°F) |
| Dew point | 5°C (41°F) | 6°C (42°F) | 6°C (42°F) | 6°C (43°F) | 7°C (44°F) | 7°C (44°F) | 6°C (43°F) | 6°C (42°F) |
| Wind | ||||||||
| Speed | 17km/h (11mph) | 16km/h (10mph) | 16km/h (10mph) | 12km/h (8mph) | 12km/h (8mph) | 9km/h (6mph) | 8km/h (5mph) | 6km/h (4mph) |
| Gusts | 26km/h (16mph) | 24km/h (15mph) | 25km/h (15mph) | 18km/h (11mph) | 18km/h (11mph) | 14km/h (9mph) | 12km/h (8mph) | 10km/h (6mph) |
| Direction | 156° SSE | 167° SSE | 171° S | 252° WSW | 337° NNW | 128° SE | 38° NE | 54° NE |
| Wind chill | 6°C (42°F) | 6°C (43°F) | 7°C (45°F) | 8°C (46°F) | 8°C (46°F) | 8°C (47°F) | 8°C (47°F) | 8°C (46°F) |
| Waves | ||||||||
| Height | 2.2m (7.2ft) | 2.2m (7.2ft) | 2.0m (6.6ft) | 1.8m (5.9ft) | 1.8m (5.9ft) | 1.9m (6.2ft) | 2.0m (6.6ft) | 2.0m (6.6ft) |
| Direction | 281° WNW | 282° WNW | 282° WNW | 283° WNW | 283° WNW | 284° WNW | 285° WNW | 286° WNW |
| Period | 13.2 sec. | 13.1 sec. | 12.9 sec. | 12.5 sec. | 12.0 sec. | 12.0 sec. | 12.1 sec. | 12.0 sec. |
| Significant height | 0.9m (3ft) | 0.8m (2.6ft) | 0.6m (2ft) | 0.5m (1.6ft) | 0.7m (2.3ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.6m (2ft) |
| Sea water temperature | ||||||||
| Water temperature | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) | 14°C (58°F) |