Sea weather in Swansea in Wales All the beach weather in Swansea
All the essential weather information for enjoying the beach in Swansea in Wales, 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 Swansea over the next 7 days?
Discover the best moment to go to the beach in Swansea in Wales this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Swansea. 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 |
|---|---|---|---|---|
| Friday 5 December 2025 | 45°F to 52°F | 30.5mph | not recommended | all the sea weather |
| Saturday 6 December 2025 | 50°F to 52°F | 21.8mph | not recommended | all the sea weather |
| Sunday 7 December 2025 | 49°F to 54°F | 13.1mph | discouraged | all the sea weather |
| Monday 8 December 2025 | 49°F to 54°F | 16.8mph | discouraged | all the sea weather |
| Tuesday 9 December 2025 | 52°F to 56°F | 23.6mph | not recommended | all the sea weather |
| Wednesday 10 December 2025 | 49°F to 52°F | 16.2mph | not recommended | all the sea weather |
| Thursday 11 December 2025 | 50°F to 52°F | 18mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Swansea
Sea weather on Friday 5 December 2025
On Friday 5 December 2025, the sun will rise at 08:05 and will set at 16:07 on the beach(es) of Swansea. The outside temperature will be a high of 52°F t and a low of 45°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 39.2mph km/h (with gusts up to 39.8mph). Wave height will be up to 8.9ft 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) | 8°C (47°F) | 8°C (47°F) | 9°C (48°F) | 10°C (50°F) | 10°C (50°F) |
| Perceived temperature | 4°C (40°F) | 5°C (41°F) | 5°C (40°F) | 5°C (40°F) | 3°C (38°F) | 3°C (38°F) | 6°C (43°F) | 6°C (42°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 74% | 81% | 82% | 78% | 83% | 88% | 83% | 84% |
| Barometric pressure | 1003 hPa | 1003 hPa | 1003 hPa | 1002 hPa | 997 hPa | 990 hPa | 989 hPa | 989 hPa |
| Cloud cover | 61% | 62% | 88% | 71% | 100% | 100% | 85% | 100% |
| Heat index | 7°C (45°F) | 7°C (45°F) | 8°C (46°F) | 8°C (47°F) | 8°C (47°F) | 9°C (48°F) | 10°C (50°F) | 10°C (50°F) |
| Dew point | 3°C (37°F) | 4°C (40°F) | 5°C (40°F) | 5°C (40°F) | 5°C (42°F) | 7°C (44°F) | 7°C (45°F) | 7°C (45°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 12km/h (7mph) | 17km/h (11mph) | 26km/h (16mph) | 46km/h (28mph) | 63km/h (39mph) | 42km/h (26mph) | 49km/h (31mph) |
| Gusts | 24km/h (15mph) | 20km/h (13mph) | 28km/h (17mph) | 40km/h (25mph) | 47km/h (29mph) | 64km/h (40mph) | 48km/h (30mph) | 51km/h (32mph) |
| Direction | 251° WSW | 250° WSW | 207° SSW | 169° S | 159° SSE | 152° SSE | 221° SW | 229° SW |
| Wind chill | 4°C (40°F) | 5°C (41°F) | 5°C (40°F) | 5°C (40°F) | 3°C (38°F) | 3°C (38°F) | 6°C (43°F) | 6°C (42°F) |
| Waves | ||||||||
| Height | 1.9m (6.2ft) | 1.9m (6.1ft) | 1.8m (5.9ft) | 1.7m (5.7ft) | 1.9m (6.3ft) | 2.4m (7.8ft) | 2.7m (8.9ft) | 2.7m (8.8ft) |
| Direction | 252° WSW | 253° WSW | 253° WSW | 253° WSW | 250° WSW | 244° WSW | 237° WSW | 239° WSW |
| Period | 14.5 sec. | 14.6 sec. | 14.6 sec. | 14.3 sec. | 10.3 sec. | 7.9 sec. | 4.8 sec. | 4.8 sec. |
| Significant height | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.8m (2.6ft) | 1.6m (5.2ft) | 2.3m (7.5ft) | 1.4m (4.6ft) | 1.7m (5.6ft) |
| 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 Saturday 6 December 2025
On Saturday 6 December 2025, the sun will rise at 08:06 and will set at 16:07 on the beach(es) of Swansea. The outside temperature will be a high of 52°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. Be careful, the sea will be generally rough with a wind speed of up to 34.2mph km/h (with gusts up to 38.5mph). Wave height will be up to 16.4ft 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) | 10°C (51°F) | 10°C (51°F) | 11°C (51°F) | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) |
| Perceived temperature | 5°C (42°F) | 6°C (42°F) | 6°C (43°F) | 6°C (43°F) | 6°C (43°F) | 6°C (42°F) | 6°C (42°F) | 6°C (43°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 88% | 85% | 88% | 85% | 85% | 85% | 84% | 85% |
| Barometric pressure | 987 hPa | 988 hPa | 989 hPa | 992 hPa | 995 hPa | 997 hPa | 1000 hPa | 1002 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 72% | 71% |
| Heat index | 10°C (50°F) | 10°C (51°F) | 10°C (51°F) | 11°C (51°F) | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) |
| Dew point | 8°C (47°F) | 8°C (46°F) | 8°C (47°F) | 8°C (47°F) | 8°C (46°F) | 8°C (46°F) | 7°C (45°F) | 7°C (45°F) |
| Wind | ||||||||
| Speed | 53km/h (33mph) | 55km/h (34mph) | 51km/h (32mph) | 54km/h (33mph) | 50km/h (31mph) | 47km/h (29mph) | 44km/h (27mph) | 35km/h (22mph) |
| Gusts | 54km/h (33mph) | 62km/h (39mph) | 55km/h (34mph) | 57km/h (36mph) | 52km/h (32mph) | 54km/h (34mph) | 47km/h (29mph) | 38km/h (24mph) |
| Direction | 222° SW | 241° WSW | 237° WSW | 252° WSW | 256° WSW | 256° WSW | 255° WSW | 259° W |
| Wind chill | 5°C (42°F) | 6°C (42°F) | 6°C (43°F) | 6°C (43°F) | 6°C (43°F) | 6°C (42°F) | 6°C (42°F) | 6°C (43°F) |
| Waves | ||||||||
| Height | 3.0m (9.9ft) | 3.5m (11.4ft) | 4.3m (14.2ft) | 4.7m (15.3ft) | 5.0m (16.3ft) | 4.6m (15.2ft) | 4.3m (14.2ft) | 3.8m (12.3ft) |
| Direction | 247° WSW | 246° WSW | 249° WSW | 249° WSW | 249° WSW | 249° WSW | 249° WSW | 250° WSW |
| Period | 9.3 sec. | 10.1 sec. | 11.8 sec. | 15.5 sec. | 16.1 sec. | 16.0 sec. | 15.7 sec. | 15.3 sec. |
| Significant height | 1.5m (4.9ft) | 1.7m (5.6ft) | 1.7m (5.6ft) | 1.8m (5.9ft) | 1.9m (6.2ft) | 1.7m (5.6ft) | 1.5m (4.9ft) | 1.3m (4.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) |
Sea weather on Sunday 7 December 2025
On Sunday 7 December 2025, the sun will rise at 08:08 and will set at 16:07 on the beach(es) of Swansea. The outside temperature will be a high of 54°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 21.1mph km/h (with gusts up to 25.5mph). Wave height will be up to 10.5ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | | | | | | | |
| Outside temperature | 10°C (50°F) | 10°C (49°F) | 10°C (50°F) | 10°C (51°F) | 12°C (53°F) | 11°C (52°F) | 10°C (50°F) | 10°C (49°F) |
| Perceived temperature | 7°C (44°F) | 7°C (45°F) | 8°C (46°F) | 7°C (44°F) | 9°C (48°F) | 8°C (46°F) | 6°C (44°F) | 7°C (45°F) |
| Precipitation | 0in | 0in | 0in | 0.1in | 0in | 0in | 0in | 0in |
| Humidity | 85% | 91% | 92% | 96% | 98% | 92% | 90% | 88% |
| Barometric pressure | 1003 hPa | 1003 hPa | 1001 hPa | 998 hPa | 997 hPa | 998 hPa | 1003 hPa | 1006 hPa |
| Cloud cover | 25% | 80% | 100% | 100% | 100% | 100% | 56% | 8% |
| Heat index | 10°C (50°F) | 10°C (49°F) | 10°C (50°F) | 10°C (51°F) | 12°C (53°F) | 11°C (52°F) | 10°C (50°F) | 10°C (49°F) |
| Dew point | 7°C (45°F) | 8°C (47°F) | 9°C (48°F) | 10°C (50°F) | 12°C (53°F) | 10°C (49°F) | 8°C (47°F) | 8°C (46°F) |
| Wind | ||||||||
| Speed | 26km/h (16mph) | 14km/h (9mph) | 16km/h (10mph) | 32km/h (20mph) | 31km/h (19mph) | 34km/h (21mph) | 29km/h (18mph) | 21km/h (13mph) |
| Gusts | 41km/h (26mph) | 24km/h (15mph) | 25km/h (16mph) | 36km/h (22mph) | 35km/h (22mph) | 37km/h (23mph) | 29km/h (18mph) | 35km/h (22mph) |
| Direction | 255° WSW | 200° SSW | 125° SE | 128° SE | 220° SW | 252° WSW | 272° W | 265° W |
| Wind chill | 7°C (44°F) | 7°C (45°F) | 8°C (46°F) | 7°C (44°F) | 9°C (48°F) | 8°C (46°F) | 6°C (44°F) | 7°C (45°F) |
| Waves | ||||||||
| Height | 3.2m (10.6ft) | 2.8m (9.1ft) | 2.4m (7.8ft) | 2.3m (7.5ft) | 3.0m (9.7ft) | 2.9m (9.5ft) | 2.8m (9.2ft) | 2.5m (8.3ft) |
| Direction | 250° WSW | 251° WSW | 252° WSW | 252° WSW | 239° WSW | 243° WSW | 244° WSW | 242° WSW |
| Period | 14.9 sec. | 14.3 sec. | 14.0 sec. | 13.6 sec. | 8.0 sec. | 9.6 sec. | 10.6 sec. | 10.8 sec. |
| Significant height | 0.9m (3ft) | 0.8m (2.6ft) | 0.9m (3ft) | 0.9m (3ft) | 1.8m (5.9ft) | 1.6m (5.2ft) | 1.4m (4.6ft) | 1.0m (3.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) |
Sea weather on Monday 8 December 2025
On Monday 8 December 2025, the sun will rise at 08:09 and will set at 16:06 on the beach(es) of Swansea. The outside temperature will be a high of 54°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 16.8mph km/h (with gusts up to 27.3mph). 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 | 9°C (49°F) | 9°C (49°F) | 10°C (49°F) | 10°C (50°F) | 11°C (51°F) | 11°C (52°F) | 11°C (52°F) | 11°C (53°F) |
| Perceived temperature | 7°C (45°F) | 7°C (45°F) | 8°C (46°F) | 8°C (46°F) | 9°C (48°F) | 9°C (48°F) | 8°C (47°F) | 9°C (47°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 88% | 92% | 89% | 90% | 93% | 95% | 94% | 90% |
| Barometric pressure | 1007 hPa | 1007 hPa | 1007 hPa | 1007 hPa | 1007 hPa | 1006 hPa | 1006 hPa | 1006 hPa |
| Cloud cover | 21% | 44% | 70% | 65% | 95% | 100% | 100% | 100% |
| Heat index | 9°C (49°F) | 9°C (49°F) | 10°C (49°F) | 10°C (50°F) | 11°C (51°F) | 11°C (52°F) | 11°C (52°F) | 11°C (53°F) |
| Dew point | 7°C (45°F) | 8°C (47°F) | 8°C (46°F) | 8°C (47°F) | 9°C (49°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 14km/h (9mph) | 15km/h (9mph) | 15km/h (9mph) | 14km/h (9mph) | 16km/h (10mph) | 24km/h (15mph) | 27km/h (17mph) |
| Gusts | 24km/h (15mph) | 24km/h (15mph) | 24km/h (15mph) | 26km/h (16mph) | 25km/h (15mph) | 29km/h (18mph) | 42km/h (26mph) | 44km/h (28mph) |
| Direction | 241° WSW | 186° S | 168° SSE | 177° S | 188° S | 202° SSW | 189° S | 192° SSW |
| Wind chill | 7°C (45°F) | 7°C (45°F) | 8°C (46°F) | 8°C (46°F) | 9°C (48°F) | 9°C (48°F) | 8°C (47°F) | 9°C (47°F) |
| Waves | ||||||||
| Height | 2.2m (7.4ft) | 2.0m (6.5ft) | 1.8m (5.9ft) | 2.0m (6.5ft) | 1.9m (6.3ft) | 2.0m (6.7ft) | 2.2m (7.2ft) | 2.3m (7.7ft) |
| Direction | 240° WSW | 239° WSW | 239° WSW | 239° WSW | 239° WSW | 240° WSW | 250° WSW | 251° WSW |
| Period | 11.3 sec. | 11.4 sec. | 11.3 sec. | 10.9 sec. | 11.1 sec. | 20.0 sec. | 19.0 sec. | 17.8 sec. |
| Significant height | 0.6m (2ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 1.1m (3.6ft) | 0.8m (2.6ft) | 1.5m (4.9ft) | 0.8m (2.6ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) |
Sea weather on Tuesday 9 December 2025
On Tuesday 9 December 2025, the sun will rise at 08:10 and will set at 16:06 on the beach(es) of Swansea. The outside temperature will be a high of 56°F t and a low of 52°F. Precipitation is in the forecast (0.4in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 28mph km/h (with gusts up to 29.8mph). Wave height will be up to 10.5ft 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) | 11°C (52°F) | 11°C (52°F) | 12°C (54°F) | 12°C (54°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) |
| Perceived temperature | 9°C (49°F) | 9°C (48°F) | 8°C (47°F) | 9°C (48°F) | 9°C (48°F) | 10°C (49°F) | 10°C (49°F) | 9°C (49°F) |
| Precipitation | 0in | 0in | 0.1in | 0.1in | 0.1in | 0in | 0in | 0in |
| Humidity | 91% | 95% | 98% | 94% | 94% | 91% | 92% | 93% |
| Barometric pressure | 1005 hPa | 1005 hPa | 1001 hPa | 998 hPa | 996 hPa | 994 hPa | 994 hPa | 994 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 12°C (53°F) | 11°C (52°F) | 11°C (52°F) | 12°C (54°F) | 12°C (54°F) | 13°C (55°F) | 13°C (55°F) | 13°C (55°F) |
| Dew point | 10°C (50°F) | 10°C (51°F) | 11°C (51°F) | 11°C (52°F) | 11°C (53°F) | 12°C (53°F) | 11°C (53°F) | 11°C (53°F) |
| Wind | ||||||||
| Speed | 22km/h (14mph) | 17km/h (11mph) | 23km/h (14mph) | 38km/h (24mph) | 41km/h (26mph) | 45km/h (28mph) | 43km/h (27mph) | 38km/h (23mph) |
| Gusts | 36km/h (23mph) | 28km/h (17mph) | 39km/h (24mph) | 38km/h (24mph) | 48km/h (30mph) | 47km/h (29mph) | 45km/h (28mph) | 43km/h (27mph) |
| Direction | 194° SSW | 167° SSE | 112° ESE | 184° S | 193° SSW | 199° SSW | 195° SSW | 203° SSW |
| Wind chill | 9°C (49°F) | 9°C (48°F) | 8°C (47°F) | 9°C (48°F) | 9°C (48°F) | 10°C (49°F) | 10°C (49°F) | 9°C (49°F) |
| Waves | ||||||||
| Height | 2.4m (7.9ft) | 2.4m (8.0ft) | 2.5m (8.1ft) | 2.5m (8.1ft) | 2.5m (8.1ft) | 2.8m (9.3ft) | 2.9m (9.5ft) | 3.2m (10.5ft) |
| Direction | 251° WSW | 251° WSW | 250° WSW | 250° WSW | 250° WSW | 251° WSW | 244° WSW | 243° WSW |
| Period | 17.7 sec. | 17.8 sec. | 17.5 sec. | 16.9 sec. | 16.3 sec. | 15.8 sec. | 12.2 sec. | 13.0 sec. |
| Significant height | 0.9m (3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 1.5m (4.9ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.4m (4.6ft) | 1.4m (4.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) |
Sea weather on Wednesday 10 December 2025
On Wednesday 10 December 2025, the sun will rise at 08:11 and will set at 16:06 on the beach(es) of Swansea. 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! Be careful, the sea will be generally rough with a wind speed of up to 26.7mph km/h (with gusts up to 31.1mph). Wave height will be up to 13.5ft 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 (51°F) | 11°C (51°F) | 10°C (51°F) | 10°C (50°F) | 10°C (49°F) | 9°C (49°F) | 10°C (49°F) |
| Perceived temperature | 7°C (45°F) | 8°C (46°F) | 8°C (46°F) | 7°C (44°F) | 6°C (43°F) | 5°C (42°F) | 5°C (41°F) | 6°C (43°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 90% | 90% | 88% | 83% | 83% | 80% | 79% | 88% |
| Barometric pressure | 998 hPa | 1001 hPa | 1001 hPa | 1002 hPa | 1004 hPa | 1007 hPa | 1011 hPa | 1013 hPa |
| Cloud cover | 100% | 85% | 100% | 82% | 76% | 81% | 26% | 56% |
| Heat index | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) | 10°C (51°F) | 10°C (50°F) | 10°C (49°F) | 9°C (49°F) | 10°C (49°F) |
| Dew point | 9°C (49°F) | 9°C (48°F) | 9°C (48°F) | 8°C (46°F) | 7°C (45°F) | 7°C (44°F) | 6°C (43°F) | 8°C (46°F) |
| Wind | ||||||||
| Speed | 34km/h (21mph) | 23km/h (15mph) | 27km/h (17mph) | 34km/h (21mph) | 39km/h (24mph) | 43km/h (27mph) | 34km/h (21mph) | 26km/h (16mph) |
| Gusts | 50km/h (31mph) | 35km/h (22mph) | 43km/h (27mph) | 40km/h (25mph) | 40km/h (25mph) | 45km/h (28mph) | 39km/h (24mph) | 43km/h (27mph) |
| Direction | 249° WSW | 235° SW | 216° SW | 222° SW | 251° WSW | 257° WSW | 257° WSW | 237° WSW |
| Wind chill | 7°C (45°F) | 8°C (46°F) | 8°C (46°F) | 7°C (44°F) | 6°C (43°F) | 5°C (42°F) | 5°C (41°F) | 6°C (43°F) |
| Waves | ||||||||
| Height | 3.6m (11.7ft) | 4.1m (13.5ft) | 3.9m (12.7ft) | 3.5m (11.5ft) | 3.4m (11.0ft) | 3.0m (9.9ft) | 2.8m (9.2ft) | 2.5m (8.3ft) |
| Direction | 241° WSW | 242° WSW | 240° WSW | 241° WSW | 241° WSW | 242° WSW | 244° WSW | 243° WSW |
| Period | 13.3 sec. | 14.4 sec. | 15.3 sec. | 14.7 sec. | 14.9 sec. | 14.4 sec. | 13.1 sec. | 12.6 sec. |
| Significant height | 1.4m (4.6ft) | 1.4m (4.6ft) | 1.0m (3.3ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 1.2m (3.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) |
Sea weather on Thursday 11 December 2025
On Thursday 11 December 2025, the sun will rise at 08:12 and will set at 16:06 on the beach(es) of Swansea. The outside temperature will be a high of 52°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 22.4mph km/h (with gusts up to 26.7mph). Wave height will be up to 9.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | |  | | | |
| Outside temperature | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) | 11°C (52°F) |
| Perceived temperature | 7°C (44°F) | 7°C (44°F) | 7°C (44°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 8°C (47°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 89% | 91% | 89% | 86% | 84% | 84% | 85% | 86% |
| Barometric pressure | 1014 hPa | 1015 hPa | 1014 hPa | 1014 hPa | 1013 hPa | 1013 hPa | 1013 hPa | 1013 hPa |
| Cloud cover | 74% | 76% | 39% | 76% | 63% | 77% | 100% | 100% |
| Heat index | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) | 11°C (52°F) |
| Dew point | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 9°C (48°F) |
| Wind | ||||||||
| Speed | 28km/h (17mph) | 27km/h (17mph) | 27km/h (17mph) | 32km/h (20mph) | 35km/h (21mph) | 36km/h (22mph) | 33km/h (21mph) | 29km/h (18mph) |
| Gusts | 43km/h (27mph) | 41km/h (25mph) | 42km/h (26mph) | 37km/h (23mph) | 37km/h (23mph) | 38km/h (24mph) | 36km/h (22mph) | 36km/h (22mph) |
| Direction | 219° SW | 201° SSW | 191° SSW | 187° S | 187° S | 184° S | 184° S | 180° S |
| Wind chill | 7°C (44°F) | 7°C (44°F) | 7°C (44°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 8°C (47°F) |
| Waves | ||||||||
| Height | 2.3m (7.5ft) | 2.1m (7.0ft) | 2.2m (7.3ft) | 2.8m (9.1ft) | 2.7m (8.8ft) | 2.5m (8.3ft) | 2.4m (7.8ft) | 2.2m (7.3ft) |
| Direction | 245° WSW | 244° WSW | 243° WSW | 244° WSW | 243° WSW | 245° WSW | 247° WSW | 247° WSW |
| Period | 11.8 sec. | 11.8 sec. | 11.3 sec. | 10.4 sec. | 10.7 sec. | 11.6 sec. | 11.8 sec. | 11.8 sec. |
| Significant height | 1.0m (3.3ft) | 1.1m (3.6ft) | 1.2m (3.9ft) | 1.5m (4.9ft) | 0.8m (2.6ft) | 0.6m (2ft) | 0.5m (1.6ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) |