Sea weather in San Sebastian in Spain All the beach weather in San Sebastian
All the essential weather information for enjoying the beach in San Sebastian in Spain, 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 San Sebastian over the next 7 days?
Discover the best moment to go to the beach in San Sebastian in Spain this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in San Sebastian. 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 |
|---|---|---|---|---|
| Thursday 20 March 2025 | 56°F to 65°F | 14.3mph | discouraged | all the sea weather |
| Friday 21 March 2025 | 58°F to 63°F | 22.4mph | discouraged | all the sea weather |
| Saturday 22 March 2025 | 50°F to 58°F | 18mph | discouraged | all the sea weather |
| Sunday 23 March 2025 | 49°F to 50°F | 19.9mph | discouraged | all the sea weather |
| Monday 24 March 2025 | 49°F to 52°F | 19.9mph | discouraged | all the sea weather |
| Tuesday 25 March 2025 | 49°F to 52°F | 5.6mph | discouraged | all the sea weather |
| Wednesday 26 March 2025 | 49°F to 52°F | 13.7mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in San Sebastian
Sea weather on Thursday 20 March 2025
On Thursday 20 March 2025, the sun will rise at 07:11 and will set at 19:21 on the beach(es) of San Sebastian. The outside temperature will be a high of 65°F t and a low of 56°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 23.6mph). 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 | 14°C (56°F) | 14°C (57°F) | 14°C (57°F) | 14°C (58°F) | 15°C (60°F) | 17°C (63°F) | 17°C (62°F) | 16°C (61°F) |
| Perceived temperature | 12°C (54°F) | 12°C (54°F) | 12°C (53°F) | 12°C (54°F) | 15°C (60°F) | 17°C (63°F) | 17°C (62°F) | 16°C (61°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 72% | 69% | 69% | 65% | 65% | 61% | 66% | 68% |
| Barometric pressure | 1015 hPa | 1014 hPa | 1013 hPa | 1012 hPa | 1013 hPa | 1011 hPa | 1010 hPa | 1010 hPa |
| Cloud cover | 2% | 46% | 6% | 66% | 26% | 54% | 100% | 74% |
| Heat index | 14°C (56°F) | 14°C (57°F) | 14°C (57°F) | 14°C (58°F) | 15°C (60°F) | 17°C (63°F) | 17°C (62°F) | 16°C (61°F) |
| Dew point | 8°C (47°F) | 9°C (47°F) | 8°C (47°F) | 8°C (46°F) | 9°C (48°F) | 10°C (49°F) | 11°C (51°F) | 10°C (50°F) |
| Wind | ||||||||
| Speed | 18km/h (11mph) | 21km/h (13mph) | 25km/h (16mph) | 23km/h (15mph) | 20km/h (13mph) | 36km/h (22mph) | 31km/h (19mph) | 23km/h (15mph) |
| Gusts | 24km/h (15mph) | 38km/h (24mph) | 25km/h (16mph) | 29km/h (18mph) | 38km/h (24mph) | 36km/h (23mph) | 37km/h (23mph) | 27km/h (17mph) |
| Direction | 110° ESE | 128° SE | 118° ESE | 104° ESE | 137° SE | 151° SSE | 156° SSE | 182° S |
| Wind chill | 12°C (54°F) | 12°C (54°F) | 12°C (53°F) | 12°C (54°F) | 15°C (60°F) | 17°C (63°F) | 17°C (62°F) | 16°C (61°F) |
| Waves | ||||||||
| Height | 0.9m (3.0ft) | 1.0m (3.3ft) | 1.1m (3.6ft) | 1.1m (3.7ft) | 1.1m (3.6ft) | 1.1m (3.5ft) | 0.9m (2.9ft) | 0.8m (2.5ft) |
| Direction | 293° WNW | 297° WNW | 296° WNW | 296° WNW | 296° WNW | 295° WNW | 295° WNW | 295° WNW |
| Period | 12.6 sec. | 14.3 sec. | 13.5 sec. | 13.3 sec. | 12.8 sec. | 12.5 sec. | 12.1 sec. | 11.9 sec. |
| Significant height | 1.2m (3.9ft) | 1.5m (4.9ft) | 1.7m (5.6ft) | 1.6m (5.2ft) | 1.5m (4.9ft) | 1.6m (5.2ft) | 1.2m (3.9ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) |
Sea weather on Friday 21 March 2025
On Friday 21 March 2025, the sun will rise at 07:09 and will set at 19:22 on the beach(es) of San Sebastian. The outside temperature will be a high of 63°F t and a low of 58°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 24.9mph). Wave height will be up to 3.3ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | |  | |  | | | | |
| Outside temperature | 15°C (59°F) | 14°C (57°F) | 14°C (57°F) | 15°C (59°F) | 15°C (59°F) | 17°C (62°F) | 15°C (59°F) | 14°C (58°F) |
| Perceived temperature | 14°C (58°F) | 12°C (54°F) | 12°C (53°F) | 13°C (56°F) | 14°C (57°F) | 17°C (62°F) | 15°C (59°F) | 12°C (54°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 73% | 80% | 80% | 67% | 57% | 47% | 57% | 63% |
| Barometric pressure | 1008 hPa | 1005 hPa | 1004 hPa | 1003 hPa | 1004 hPa | 1002 hPa | 1002 hPa | 1002 hPa |
| Cloud cover | 68% | 71% | 76% | 84% | 8% | 27% | 75% | 96% |
| Heat index | 15°C (59°F) | 14°C (57°F) | 14°C (57°F) | 15°C (59°F) | 15°C (59°F) | 17°C (62°F) | 15°C (59°F) | 14°C (58°F) |
| Dew point | 10°C (50°F) | 11°C (51°F) | 11°C (51°F) | 9°C (48°F) | 7°C (44°F) | 6°C (42°F) | 7°C (44°F) | 7°C (45°F) |
| Wind | ||||||||
| Speed | 11km/h (7mph) | 27km/h (17mph) | 31km/h (19mph) | 24km/h (15mph) | 19km/h (12mph) | 17km/h (10mph) | 27km/h (17mph) | 36km/h (23mph) |
| Gusts | 22km/h (14mph) | 29km/h (18mph) | 33km/h (21mph) | 40km/h (25mph) | 35km/h (21mph) | 32km/h (20mph) | 33km/h (20mph) | 37km/h (23mph) |
| Direction | 116° ESE | 123° ESE | 168° SSE | 194° SSW | 196° SSW | 184° S | 159° SSE | 172° S |
| Wind chill | 14°C (58°F) | 12°C (54°F) | 12°C (53°F) | 13°C (56°F) | 14°C (57°F) | 17°C (62°F) | 15°C (59°F) | 12°C (54°F) |
| Waves | ||||||||
| Height | 0.7m (2.4ft) | 0.7m (2.5ft) | 0.7m (2.2ft) | 0.9m (2.9ft) | 0.6m (2.0ft) | 0.9m (2.9ft) | 1.0m (3.2ft) | 0.8m (2.5ft) |
| Direction | 294° WNW | 294° WNW | 295° WNW | 295° WNW | 297° WNW | 297° WNW | 243° WSW | 299° WNW |
| Period | 11.9 sec. | 11.7 sec. | 11.4 sec. | 11.1 sec. | 10.8 sec. | 10.6 sec. | 10.4 sec. | 4.3 sec. |
| Significant height | 0.9m (3ft) | 1.1m (3.6ft) | 0.9m (3ft) | 1.5m (4.9ft) | 1.0m (3.3ft) | 1.3m (4.3ft) | 0.9m (3ft) | 1.3m (4.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) |
Sea weather on Saturday 22 March 2025
On Saturday 22 March 2025, the sun will rise at 07:08 and will set at 19:23 on the beach(es) of San Sebastian. 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 18mph km/h (with gusts up to 26.7mph). Wave height will be up to 6.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | |  |  |
| Outside temperature | 14°C (57°F) | 13°C (56°F) | 12°C (54°F) | 12°C (53°F) | 12°C (54°F) | 13°C (55°F) | 11°C (53°F) | 10°C (51°F) |
| Perceived temperature | 12°C (54°F) | 11°C (51°F) | 10°C (49°F) | 9°C (47°F) | 10°C (50°F) | 11°C (52°F) | 9°C (49°F) | 7°C (45°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 69% | 71% | 64% | 63% | 65% | 66% | 75% | 85% |
| Barometric pressure | 1002 hPa | 1000 hPa | 1001 hPa | 1003 hPa | 1004 hPa | 1004 hPa | 1005 hPa | 1007 hPa |
| Cloud cover | 100% | 99% | 51% | 76% | 100% | 95% | 100% | 100% |
| Heat index | 14°C (57°F) | 13°C (56°F) | 12°C (54°F) | 12°C (53°F) | 12°C (54°F) | 13°C (55°F) | 11°C (53°F) | 10°C (51°F) |
| Dew point | 8°C (47°F) | 8°C (46°F) | 6°C (42°F) | 5°C (40°F) | 6°C (42°F) | 6°C (43°F) | 7°C (45°F) | 8°C (47°F) |
| Wind | ||||||||
| Speed | 18km/h (11mph) | 28km/h (17mph) | 29km/h (18mph) | 29km/h (18mph) | 17km/h (11mph) | 17km/h (10mph) | 19km/h (12mph) | 29km/h (18mph) |
| Gusts | 32km/h (20mph) | 28km/h (18mph) | 43km/h (27mph) | 42km/h (26mph) | 23km/h (14mph) | 23km/h (14mph) | 30km/h (18mph) | 43km/h (27mph) |
| Direction | 167° SSE | 167° SSE | 214° SSW | 217° SW | 238° WSW | 217° SW | 286° WNW | 267° W |
| Wind chill | 12°C (54°F) | 11°C (51°F) | 10°C (49°F) | 9°C (47°F) | 10°C (50°F) | 11°C (52°F) | 9°C (49°F) | 7°C (45°F) |
| Waves | ||||||||
| Height | 0.8m (2.6ft) | 0.7m (2.2ft) | 0.8m (2.5ft) | 0.6m (2.0ft) | 1.0m (3.3ft) | 1.0m (3.4ft) | 1.4m (4.7ft) | 2.0m (6.5ft) |
| Direction | 299° WNW | 298° WNW | 187° S | 299° WNW | 224° SW | 236° WSW | 287° WNW | 289° WNW |
| Period | 10.2 sec. | 9.9 sec. | 9.7 sec. | 9.6 sec. | 9.4 sec. | 9.3 sec. | 15.9 sec. | 15.8 sec. |
| Significant height | 1.2m (3.9ft) | 1.0m (3.3ft) | 1.3m (4.3ft) | 0.9m (3ft) | 1.5m (4.9ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.1m (3.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) |
Sea weather on Sunday 23 March 2025
On Sunday 23 March 2025, the sun will rise at 07:06 and will set at 19:24 on the beach(es) of San Sebastian. The outside temperature will be a high of 50°F t and a low of 49°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 22.4mph km/h (with gusts up to 32.9mph). Wave height will be up to 9.5ft 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) | 9°C (49°F) | 10°C (51°F) | 10°C (49°F) | 10°C (49°F) | 10°C (50°F) | 10°C (50°F) |
| Perceived temperature | 7°C (45°F) | 7°C (45°F) | 6°C (43°F) | 7°C (45°F) | 6°C (42°F) | 6°C (42°F) | 6°C (43°F) | 7°C (44°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 82% | 79% | 82% | 78% | 85% | 87% | 84% | 82% |
| Barometric pressure | 1008 hPa | 1007 hPa | 1007 hPa | 1008 hPa | 1009 hPa | 1009 hPa | 1010 hPa | 1012 hPa |
| Cloud cover | 86% | 73% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 10°C (51°F) | 10°C (50°F) | 9°C (49°F) | 10°C (51°F) | 10°C (49°F) | 10°C (49°F) | 10°C (50°F) | 10°C (50°F) |
| Dew point | 7°C (45°F) | 7°C (44°F) | 7°C (44°F) | 7°C (44°F) | 7°C (45°F) | 8°C (46°F) | 7°C (45°F) | 7°C (45°F) |
| Wind | ||||||||
| Speed | 26km/h (16mph) | 23km/h (14mph) | 26km/h (16mph) | 30km/h (19mph) | 32km/h (20mph) | 36km/h (22mph) | 33km/h (21mph) | 32km/h (20mph) |
| Gusts | 38km/h (24mph) | 35km/h (22mph) | 42km/h (26mph) | 42km/h (26mph) | 47km/h (30mph) | 53km/h (33mph) | 51km/h (32mph) | 46km/h (29mph) |
| Direction | 262° W | 257° WSW | 257° WSW | 254° WSW | 254° WSW | 267° W | 280° W | 301° WNW |
| Wind chill | 7°C (45°F) | 7°C (45°F) | 6°C (43°F) | 7°C (45°F) | 6°C (42°F) | 6°C (42°F) | 6°C (43°F) | 7°C (44°F) |
| Waves | ||||||||
| Height | 1.9m (6.1ft) | 2.1m (7.0ft) | 2.6m (8.7ft) | 2.9m (9.6ft) | 2.9m (9.6ft) | 2.8m (9.3ft) | 2.7m (8.8ft) | 2.5m (8.2ft) |
| Direction | 291° WNW | 301° WNW | 302° WNW | 306° NW | 309° NW | 311° NW | 312° NW | 313° NW |
| Period | 14.8 sec. | 9.3 sec. | 13.1 sec. | 12.7 sec. | 12.5 sec. | 12.2 sec. | 12.0 sec. | 11.9 sec. |
| Significant height | 1.2m (3.9ft) | 0.8m (2.6ft) | 0.9m (3ft) | 0.6m (2ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) |
Sea weather on Monday 24 March 2025
On Monday 24 March 2025, the sun will rise at 07:04 and will set at 19:25 on the beach(es) of San Sebastian. The outside temperature will be a high of 52°F t and a low of 49°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 23mph km/h (with gusts up to 30.5mph). Wave height will be up to 9.8ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 10°C (49°F) | 9°C (48°F) | 9°C (48°F) | 9°C (49°F) | 10°C (50°F) | 10°C (50°F) | 9°C (48°F) | 10°C (50°F) |
| Perceived temperature | 6°C (43°F) | 6°C (43°F) | 6°C (43°F) | 6°C (43°F) | 7°C (44°F) | 6°C (43°F) | 5°C (40°F) | 7°C (44°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0.1in | 0in |
| Humidity | 79% | 74% | 72% | 72% | 68% | 75% | 90% | 89% |
| Barometric pressure | 1013 hPa | 1014 hPa | 1014 hPa | 1016 hPa | 1017 hPa | 1016 hPa | 1016 hPa | 1017 hPa |
| Cloud cover | 100% | 53% | 85% | 84% | 74% | 100% | 100% | 100% |
| Heat index | 10°C (49°F) | 9°C (48°F) | 9°C (48°F) | 9°C (49°F) | 10°C (50°F) | 10°C (50°F) | 9°C (48°F) | 10°C (50°F) |
| Dew point | 6°C (43°F) | 5°C (40°F) | 4°C (40°F) | 5°C (40°F) | 4°C (40°F) | 6°C (42°F) | 7°C (45°F) | 8°C (47°F) |
| Wind | ||||||||
| Speed | 28km/h (18mph) | 23km/h (14mph) | 22km/h (13mph) | 23km/h (14mph) | 30km/h (18mph) | 35km/h (22mph) | 37km/h (23mph) | 32km/h (20mph) |
| Gusts | 41km/h (26mph) | 35km/h (22mph) | 33km/h (20mph) | 32km/h (20mph) | 41km/h (25mph) | 49km/h (30mph) | 41km/h (25mph) | 49km/h (31mph) |
| Direction | 296° WNW | 290° WNW | 290° WNW | 281° W | 284° WNW | 289° WNW | 268° W | 297° WNW |
| Wind chill | 6°C (43°F) | 6°C (43°F) | 6°C (43°F) | 6°C (43°F) | 7°C (44°F) | 6°C (43°F) | 5°C (40°F) | 7°C (44°F) |
| Waves | ||||||||
| Height | 2.3m (7.7ft) | 3.0m (9.7ft) | 2.9m (9.6ft) | 2.8m (9.3ft) | 2.7m (8.9ft) | 2.5m (8.0ft) | 2.2m (7.3ft) | 2.0m (6.6ft) |
| Direction | 313° NW | 316° NW | 316° NW | 316° NW | 315° NW | 314° NW | 312° NW | 311° NW |
| Period | 11.5 sec. | 11.6 sec. | 11.4 sec. | 11.2 sec. | 11.1 sec. | 11.0 sec. | 11.0 sec. | 11.2 sec. |
| Significant height | 0.4m (1.3ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 0.9m (3ft) | 0.8m (2.6ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) |
Sea weather on Tuesday 25 March 2025
On Tuesday 25 March 2025, the sun will rise at 07:02 and will set at 19:27 on the beach(es) of San Sebastian. The outside temperature will be a high of 52°F t and a low of 49°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 32.9mph). Wave height will be up to 6.2ft 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 (51°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 9°C (49°F) |
| Perceived temperature | 7°C (44°F) | 7°C (44°F) | 6°C (43°F) | 6°C (44°F) | 7°C (44°F) | 7°C (45°F) | 8°C (46°F) | 8°C (47°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 87% | 82% | 79% | 76% | 75% | 75% | 74% | 77% |
| Barometric pressure | 1018 hPa | 1017 hPa | 1017 hPa | 1018 hPa | 1018 hPa | 1018 hPa | 1018 hPa | 1019 hPa |
| Cloud cover | 100% | 80% | 90% | 100% | 100% | 100% | 61% | 49% |
| Heat index | 11°C (51°F) | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 9°C (49°F) |
| Dew point | 8°C (47°F) | 8°C (46°F) | 7°C (44°F) | 6°C (43°F) | 6°C (43°F) | 6°C (43°F) | 6°C (42°F) | 6°C (42°F) |
| Wind | ||||||||
| Speed | 35km/h (22mph) | 36km/h (22mph) | 35km/h (22mph) | 33km/h (20mph) | 31km/h (19mph) | 26km/h (16mph) | 17km/h (10mph) | 9km/h (6mph) |
| Gusts | 52km/h (32mph) | 53km/h (33mph) | 51km/h (32mph) | 47km/h (29mph) | 45km/h (28mph) | 38km/h (24mph) | 26km/h (16mph) | 15km/h (9mph) |
| Direction | 303° WNW | 294° WNW | 289° WNW | 290° WNW | 295° WNW | 303° WNW | 307° NW | 283° WNW |
| Wind chill | 7°C (44°F) | 7°C (44°F) | 6°C (43°F) | 6°C (44°F) | 7°C (44°F) | 7°C (45°F) | 8°C (46°F) | 8°C (47°F) |
| Waves | ||||||||
| Height | 1.9m (6.2ft) | 1.8m (5.9ft) | 1.9m (6.2ft) | 1.9m (6.2ft) | 1.9m (6.2ft) | 1.9m (6.2ft) | 1.9m (6.2ft) | 1.9m (6.2ft) |
| Direction | 311° NW | 312° NW | 312° NW | 312° NW | 311° NW | 310° NW | 310° NW | 311° NW |
| Period | 11.1 sec. | 10.8 sec. | 10.6 sec. | 10.6 sec. | 10.2 sec. | 9.9 sec. | 13.9 sec. | 15.4 sec. |
| Significant height | 0.5m (1.6ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.6m (2ft) | 0.8m (2.6ft) | 1.0m (3.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) |
Sea weather on Wednesday 26 March 2025
On Wednesday 26 March 2025, the sun will rise at 07:00 and will set at 19:28 on the beach(es) of San Sebastian. The outside temperature will be a high of 52°F t and a low of 49°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 16.2mph km/h (with gusts up to 24.9mph). Wave height will be up to 6.6ft 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) | 9°C (48°F) | 9°C (48°F) | 9°C (49°F) | 11°C (51°F) | 11°C (52°F) | 11°C (51°F) | 11°C (51°F) |
| Perceived temperature | 7°C (45°F) | 8°C (46°F) | 8°C (47°F) | 8°C (46°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (46°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 83% | 85% | 85% | 92% | 91% | 86% | 81% | 82% |
| Barometric pressure | 1019 hPa | 1018 hPa | 1017 hPa | 1017 hPa | 1018 hPa | 1018 hPa | 1018 hPa | 1018 hPa |
| Cloud cover | 45% | 80% | 100% | 100% | 97% | 42% | 59% | 94% |
| Heat index | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (49°F) | 11°C (51°F) | 11°C (52°F) | 11°C (51°F) | 11°C (51°F) |
| Dew point | 6°C (43°F) | 7°C (44°F) | 7°C (44°F) | 8°C (46°F) | 9°C (49°F) | 9°C (48°F) | 8°C (46°F) | 8°C (46°F) |
| Wind | ||||||||
| Speed | 10km/h (6mph) | 8km/h (5mph) | 7km/h (4mph) | 12km/h (7mph) | 21km/h (13mph) | 26km/h (16mph) | 24km/h (15mph) | 22km/h (13mph) |
| Gusts | 17km/h (11mph) | 13km/h (8mph) | 11km/h (7mph) | 17km/h (11mph) | 32km/h (20mph) | 40km/h (25mph) | 38km/h (23mph) | 33km/h (21mph) |
| Direction | 244° WSW | 233° SW | 213° SSW | 230° SW | 288° WNW | 297° WNW | 292° WNW | 292° WNW |
| Wind chill | 7°C (45°F) | 8°C (46°F) | 8°C (47°F) | 8°C (46°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (46°F) |
| Waves | ||||||||
| Height | 2.0m (6.6ft) | 1.9m (6.2ft) | 1.8m (5.9ft) | 1.7m (5.6ft) | 1.6m (5.2ft) | 1.5m (4.9ft) | 1.4m (4.6ft) | 1.3m (4.3ft) |
| Direction | 311° NW | 311° NW | 310° NW | 309° NW | 307° NW | 306° NW | 305° NW | 305° NW |
| Period | 15.2 sec. | 15.2 sec. | 11.4 sec. | 9.6 sec. | 10.1 sec. | 10.4 sec. | 10.2 sec. | 10.0 sec. |
| Significant height | 0.9m (3ft) | 1.0m (3.3ft) | 0.8m (2.6ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.2m (0.7ft) | 0.2m (0.7ft) |
| Sea water temperature | ||||||||
| Water temperature | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) |