Sea weather in Derry (Londonderry) in Northern Ireland All the beach weather in Derry (Londonderry)
All the essential weather information for enjoying the beach in Derry (Londonderry) in Northern Ireland, 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 Derry (Londonderry) over the next 7 days?
Discover the best moment to go to the beach in Derry (Londonderry) in Northern Ireland this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Derry (Londonderry). 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 | 41°F to 49°F | 13.7mph | not recommended | all the sea weather |
| Saturday 6 December 2025 | 47°F to 50°F | 10.6mph | recommended | all the sea weather |
| Sunday 7 December 2025 | 43°F to 49°F | 9.3mph | discouraged | all the sea weather |
| Monday 8 December 2025 | 43°F to 49°F | 8.7mph | discouraged | all the sea weather |
| Tuesday 9 December 2025 | 45°F to 47°F | 6.2mph | recommended | all the sea weather |
| Wednesday 10 December 2025 | 45°F to 49°F | 12.4mph | discouraged | all the sea weather |
| Thursday 11 December 2025 | 45°F to 52°F | 13.7mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Derry (Londonderry)
Sea weather on Friday 5 December 2025
On Friday 5 December 2025, the sun will rise at 08:36 and will set at 16:03 on the beach(es) of Derry (Londonderry). The outside temperature will be a high of 49°F t and a low of 41°F. Precipitation is in the forecast (0.3in 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 36.7mph km/h (with gusts up to 39.8mph). 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 | 5°C (41°F) | 6°C (42°F) | 5°C (41°F) | 6°C (42°F) | 7°C (45°F) | 7°C (44°F) | 8°C (46°F) | 9°C (48°F) |
| Perceived temperature | 2°C (35°F) | 2°C (36°F) | 2°C (35°F) | 1°C (34°F) | 2°C (35°F) | 1°C (33°F) | 3°C (37°F) | 6°C (43°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0.1in | 0.1in | 0.1in |
| Humidity | 88% | 90% | 90% | 84% | 85% | 91% | 90% | 94% |
| Barometric pressure | 997 hPa | 997 hPa | 996 hPa | 993 hPa | 987 hPa | 981 hPa | 976 hPa | 975 hPa |
| Cloud cover | 46% | 75% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 5°C (41°F) | 6°C (42°F) | 5°C (41°F) | 6°C (42°F) | 7°C (45°F) | 7°C (44°F) | 8°C (46°F) | 9°C (48°F) |
| Dew point | 3°C (38°F) | 4°C (40°F) | 4°C (39°F) | 3°C (38°F) | 5°C (40°F) | 5°C (42°F) | 6°C (44°F) | 8°C (47°F) |
| Wind | ||||||||
| Speed | 18km/h (11mph) | 18km/h (11mph) | 16km/h (10mph) | 27km/h (17mph) | 45km/h (28mph) | 59km/h (37mph) | 46km/h (29mph) | 22km/h (13mph) |
| Gusts | 27km/h (17mph) | 26km/h (16mph) | 26km/h (16mph) | 39km/h (24mph) | 62km/h (39mph) | 64km/h (40mph) | 52km/h (32mph) | 33km/h (20mph) |
| Direction | 162° SSE | 179° S | 157° SSE | 143° SE | 138° SE | 136° SE | 140° SE | 154° SSE |
| Wind chill | 2°C (35°F) | 2°C (36°F) | 2°C (35°F) | 1°C (34°F) | 2°C (35°F) | 1°C (33°F) | 3°C (37°F) | 6°C (43°F) |
| Waves | ||||||||
| Height | 1.5m (5.0ft) | 1.4m (4.7ft) | 1.3m (4.4ft) | 1.2m (4.0ft) | 1.2m (4.1ft) | 1.5m (4.8ft) | 1.9m (6.2ft) | 1.4m (4.6ft) |
| Direction | 312° NW | 309° NW | 310° NW | 311° NW | 312° NW | 309° NW | 104° ESE | 312° NW |
| Period | 17.3 sec. | 16.9 sec. | 16.2 sec. | 15.9 sec. | 15.6 sec. | 14.8 sec. | 14.5 sec. | 6.4 sec. |
| Significant height | 0.3m (1ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.6m (2ft) | 1.3m (4.3ft) | 2.0m (6.6ft) | 1.9m (6.2ft) | 0.3m (1ft) |
| 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 08:38 and will set at 16:02 on the beach(es) of Derry (Londonderry). 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 18mph). 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 | 9°C (48°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 9°C (47°F) | 10°C (50°F) | 8°C (47°F) | 10°C (49°F) |
| Perceived temperature | 7°C (44°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (43°F) | 7°C (45°F) | 6°C (42°F) | 7°C (45°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 91% | 92% | 92% | 94% | 93% | 87% | 91% | 88% |
| Barometric pressure | 977 hPa | 978 hPa | 980 hPa | 982 hPa | 984 hPa | 987 hPa | 990 hPa | 993 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 96% | 91% | 50% | 51% |
| Heat index | 9°C (48°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 9°C (47°F) | 10°C (50°F) | 8°C (47°F) | 10°C (49°F) |
| Dew point | 7°C (45°F) | 7°C (45°F) | 7°C (44°F) | 7°C (45°F) | 7°C (45°F) | 8°C (46°F) | 7°C (45°F) | 8°C (46°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 17km/h (11mph) | 15km/h (9mph) | 13km/h (8mph) | 15km/h (10mph) | 17km/h (11mph) | 16km/h (10mph) | 17km/h (10mph) |
| Gusts | 21km/h (13mph) | 25km/h (15mph) | 21km/h (13mph) | 19km/h (12mph) | 24km/h (15mph) | 27km/h (17mph) | 29km/h (18mph) | 26km/h (16mph) |
| Direction | 162° SSE | 175° S | 182° S | 191° S | 210° SSW | 236° WSW | 232° SW | 229° SW |
| Wind chill | 7°C (44°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (43°F) | 7°C (45°F) | 6°C (42°F) | 7°C (45°F) |
| Waves | ||||||||
| Height | 1.0m (3.2ft) | 0.7m (2.5ft) | 0.7m (2.2ft) | 0.8m (2.5ft) | 0.8m (2.8ft) | 0.8m (2.8ft) | 0.8m (2.8ft) | 1.0m (3.4ft) |
| Direction | 307° NW | 308° NW | 296° WNW | 299° WNW | 297° WNW | 298° WNW | 296° WNW | 296° WNW |
| Period | 5.8 sec. | 13.2 sec. | 4.5 sec. | 18.9 sec. | 18.2 sec. | 17.4 sec. | 16.5 sec. | 16.0 sec. |
| Significant height | 1.3m (4.3ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 1.0m (3.3ft) | 1.2m (3.9ft) | 1.3m (4.3ft) | 1.4m (4.6ft) | 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 Sunday 7 December 2025
On Sunday 7 December 2025, the sun will rise at 08:39 and will set at 16:02 on the beach(es) of Derry (Londonderry). The outside temperature will be a high of 49°F t and a low of 43°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 16.8mph km/h (with gusts up to 28mph). 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 | 9°C (49°F) | 8°C (47°F) | 8°C (47°F) | 8°C (46°F) | 8°C (46°F) | 9°C (49°F) | 8°C (46°F) | 7°C (45°F) |
| Perceived temperature | 7°C (45°F) | 6°C (43°F) | 6°C (43°F) | 5°C (40°F) | 5°C (40°F) | 6°C (43°F) | 4°C (40°F) | 4°C (39°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0.1in | 0in | 0in | 0in |
| Humidity | 90% | 92% | 90% | 88% | 92% | 81% | 81% | 85% |
| Barometric pressure | 995 hPa | 996 hPa | 995 hPa | 994 hPa | 993 hPa | 994 hPa | 996 hPa | 999 hPa |
| Cloud cover | 78% | 63% | 35% | 47% | 100% | 83% | 100% | 4% |
| Heat index | 9°C (49°F) | 8°C (47°F) | 8°C (47°F) | 8°C (46°F) | 8°C (46°F) | 9°C (49°F) | 8°C (46°F) | 7°C (45°F) |
| Dew point | 8°C (46°F) | 7°C (45°F) | 7°C (44°F) | 6°C (42°F) | 6°C (43°F) | 6°C (43°F) | 5°C (41°F) | 5°C (40°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 14km/h (9mph) | 12km/h (7mph) | 16km/h (10mph) | 18km/h (11mph) | 21km/h (13mph) | 27km/h (17mph) | 15km/h (10mph) |
| Gusts | 23km/h (15mph) | 23km/h (15mph) | 19km/h (12mph) | 27km/h (17mph) | 27km/h (17mph) | 32km/h (20mph) | 45km/h (28mph) | 27km/h (17mph) |
| Direction | 228° SW | 205° SSW | 171° S | 143° SE | 154° SSE | 231° SW | 253° WSW | 224° SW |
| Wind chill | 7°C (45°F) | 6°C (43°F) | 6°C (43°F) | 5°C (40°F) | 5°C (40°F) | 6°C (43°F) | 4°C (40°F) | 4°C (39°F) |
| Waves | ||||||||
| Height | 0.8m (2.7ft) | 0.7m (2.3ft) | 0.6m (1.9ft) | 0.5m (1.6ft) | 0.5m (1.5ft) | 0.5m (1.5ft) | 0.7m (2.3ft) | 0.7m (2.5ft) |
| Direction | 297° WNW | 295° WNW | 295° WNW | 296° WNW | 297° WNW | 298° WNW | 295° WNW | 296° WNW |
| Period | 15.4 sec. | 14.9 sec. | 14.6 sec. | 14.2 sec. | 14.2 sec. | 14.1 sec. | 3.8 sec. | 3.8 sec. |
| Significant height | 1.0m (3.3ft) | 0.9m (3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.6m (2ft) | 1.2m (3.9ft) | 1.2m (3.9ft) |
| 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 Monday 8 December 2025
On Monday 8 December 2025, the sun will rise at 08:40 and will set at 16:02 on the beach(es) of Derry (Londonderry). The outside temperature will be a high of 49°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 18mph km/h (with gusts up to 28mph). 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 | 6°C (44°F) | 6°C (42°F) | 7°C (45°F) | 9°C (48°F) | 8°C (47°F) | 8°C (46°F) | 7°C (45°F) | 7°C (45°F) |
| Perceived temperature | 3°C (38°F) | 2°C (36°F) | 3°C (38°F) | 5°C (41°F) | 5°C (41°F) | 5°C (40°F) | 4°C (39°F) | 4°C (40°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 87% | 87% | 88% | 83% | 83% | 84% | 87% | 89% |
| Barometric pressure | 1000 hPa | 999 hPa | 997 hPa | 998 hPa | 1000 hPa | 1000 hPa | 1002 hPa | 1001 hPa |
| Cloud cover | 1% | 10% | 100% | 44% | 29% | 38% | 74% | 53% |
| Heat index | 6°C (44°F) | 6°C (42°F) | 7°C (45°F) | 9°C (48°F) | 8°C (47°F) | 8°C (46°F) | 7°C (45°F) | 7°C (45°F) |
| Dew point | 4°C (40°F) | 4°C (39°F) | 5°C (42°F) | 6°C (43°F) | 6°C (42°F) | 6°C (42°F) | 5°C (41°F) | 5°C (42°F) |
| Wind | ||||||||
| Speed | 16km/h (10mph) | 17km/h (11mph) | 26km/h (16mph) | 29km/h (18mph) | 24km/h (15mph) | 21km/h (13mph) | 19km/h (12mph) | 14km/h (9mph) |
| Gusts | 29km/h (18mph) | 30km/h (19mph) | 39km/h (24mph) | 45km/h (28mph) | 37km/h (23mph) | 34km/h (21mph) | 32km/h (20mph) | 26km/h (16mph) |
| Direction | 177° S | 160° SSE | 164° SSE | 206° SSW | 203° SSW | 199° SSW | 187° S | 169° S |
| Wind chill | 3°C (38°F) | 2°C (36°F) | 3°C (38°F) | 5°C (41°F) | 5°C (41°F) | 5°C (40°F) | 4°C (39°F) | 4°C (40°F) |
| Waves | ||||||||
| Height | 0.7m (2.3ft) | 0.6m (2.0ft) | 0.5m (1.8ft) | 0.5m (1.7ft) | 0.7m (2.2ft) | 0.8m (2.8ft) | 0.9m (3.0ft) | 0.9m (3.0ft) |
| Direction | 296° WNW | 296° WNW | 296° WNW | 308° NW | 304° WNW | 304° NW | 303° WNW | 303° WNW |
| Period | 13.0 sec. | 7.5 sec. | 7.2 sec. | 5.9 sec. | 19.8 sec. | 19.0 sec. | 17.9 sec. | 17.6 sec. |
| Significant height | 1.0m (3.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.6m (2ft) | 0.9m (3ft) | 1.2m (3.9ft) | 1.3m (4.3ft) | 1.3m (4.3ft) |
| 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 Tuesday 9 December 2025
On Tuesday 9 December 2025, the sun will rise at 08:42 and will set at 16:01 on the beach(es) of Derry (Londonderry). The outside temperature will be a high of 47°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. The sea will be generally calm, with a wind speed of up to 9.3mph km/h (with gusts up to 16.8mph). Wave height will be up to 4.6ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 7°C (44°F) | 7°C (45°F) | 7°C (44°F) | 7°C (45°F) | 8°C (46°F) | 8°C (46°F) | 8°C (47°F) | 8°C (47°F) |
| Perceived temperature | 4°C (40°F) | 4°C (40°F) | 4°C (39°F) | 5°C (41°F) | 7°C (45°F) | 7°C (45°F) | 6°C (43°F) | 6°C (44°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0.1in | 0in |
| Humidity | 89% | 91% | 93% | 92% | 89% | 95% | 95% | 94% |
| Barometric pressure | 1000 hPa | 1000 hPa | 999 hPa | 999 hPa | 997 hPa | 995 hPa | 993 hPa | 992 hPa |
| Cloud cover | 62% | 64% | 53% | 51% | 100% | 100% | 100% | 100% |
| Heat index | 7°C (44°F) | 7°C (45°F) | 7°C (44°F) | 7°C (45°F) | 8°C (46°F) | 8°C (46°F) | 8°C (47°F) | 8°C (47°F) |
| Dew point | 5°C (41°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (43°F) | 7°C (45°F) | 8°C (46°F) | 7°C (45°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 15km/h (9mph) | 15km/h (9mph) | 11km/h (7mph) | 6km/h (4mph) | 5km/h (3mph) | 15km/h (9mph) | 10km/h (6mph) |
| Gusts | 27km/h (17mph) | 27km/h (17mph) | 26km/h (16mph) | 19km/h (12mph) | 10km/h (6mph) | 8km/h (5mph) | 23km/h (14mph) | 14km/h (9mph) |
| Direction | 170° S | 171° S | 164° SSE | 174° S | 142° SE | 86° E | 51° NE | 26° NNE |
| Wind chill | 4°C (40°F) | 4°C (40°F) | 4°C (39°F) | 5°C (41°F) | 7°C (45°F) | 7°C (45°F) | 6°C (43°F) | 6°C (44°F) |
| Waves | ||||||||
| Height | 0.9m (2.9ft) | 0.8m (2.8ft) | 0.8m (2.7ft) | 0.8m (2.5ft) | 0.8m (2.6ft) | 1.3m (4.2ft) | 1.3m (4.4ft) | 1.4m (4.7ft) |
| Direction | 303° WNW | 302° WNW | 301° WNW | 298° WNW | 298° WNW | 298° WNW | 298° WNW | 123° ESE |
| Period | 17.6 sec. | 17.3 sec. | 16.9 sec. | 16.6 sec. | 16.2 sec. | 15.9 sec. | 15.4 sec. | 14.8 sec. |
| Significant height | 1.3m (4.3ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.4m (4.6ft) | 1.8m (5.9ft) | 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 Wednesday 10 December 2025
On Wednesday 10 December 2025, the sun will rise at 08:43 and will set at 16:01 on the beach(es) of Derry (Londonderry). 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 20.5mph km/h (with gusts up to 26.1mph). 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 | 8°C (46°F) | 8°C (46°F) | 8°C (46°F) | 7°C (45°F) | 8°C (46°F) | 9°C (47°F) | 7°C (45°F) | 7°C (45°F) |
| Perceived temperature | 6°C (43°F) | 4°C (39°F) | 5°C (41°F) | 5°C (41°F) | 5°C (41°F) | 5°C (40°F) | 3°C (38°F) | 4°C (39°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 95% | 90% | 88% | 88% | 90% | 85% | 83% | 87% |
| Barometric pressure | 992 hPa | 993 hPa | 994 hPa | 995 hPa | 995 hPa | 997 hPa | 1001 hPa | 1004 hPa |
| Cloud cover | 100% | 100% | 51% | 100% | 75% | 67% | 35% | 19% |
| Heat index | 8°C (46°F) | 8°C (46°F) | 8°C (46°F) | 7°C (45°F) | 8°C (46°F) | 9°C (47°F) | 7°C (45°F) | 7°C (45°F) |
| Dew point | 7°C (45°F) | 6°C (44°F) | 6°C (43°F) | 6°C (42°F) | 6°C (43°F) | 6°C (43°F) | 5°C (41°F) | 5°C (41°F) |
| Wind | ||||||||
| Speed | 10km/h (6mph) | 31km/h (19mph) | 18km/h (11mph) | 11km/h (7mph) | 15km/h (9mph) | 33km/h (21mph) | 27km/h (17mph) | 20km/h (12mph) |
| Gusts | 14km/h (9mph) | 42km/h (26mph) | 26km/h (16mph) | 18km/h (11mph) | 22km/h (14mph) | 38km/h (24mph) | 31km/h (20mph) | 33km/h (20mph) |
| Direction | 300° WNW | 280° W | 258° WSW | 202° SSW | 211° SSW | 263° W | 245° WSW | 219° SW |
| Wind chill | 6°C (43°F) | 4°C (39°F) | 5°C (41°F) | 5°C (41°F) | 5°C (41°F) | 5°C (40°F) | 3°C (38°F) | 4°C (39°F) |
| Waves | ||||||||
| Height | 1.9m (6.3ft) | 1.2m (4.1ft) | 1.2m (4.1ft) | 0.9m (3.0ft) | 0.9m (3.1ft) | 0.9m (3.0ft) | 0.9m (2.8ft) | 0.8m (2.8ft) |
| Direction | 133° SE | 118° ESE | 294° WNW | 294° WNW | 296° WNW | 298° WNW | 298° WNW | 298° WNW |
| Period | 14.5 sec. | 6.0 sec. | 13.3 sec. | 13.3 sec. | 13.3 sec. | 12.9 sec. | 12.2 sec. | 12.0 sec. |
| Significant height | 2.2m (7.2ft) | 1.8m (5.9ft) | 1.6m (5.2ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.1m (3.6ft) |
| 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 Thursday 11 December 2025
On Thursday 11 December 2025, the sun will rise at 08:44 and will set at 16:01 on the beach(es) of Derry (Londonderry). 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. The sea will be generally calm, with a wind speed of up to 23.6mph km/h (with gusts up to 31.7mph). 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 | 7°C (45°F) | 8°C (46°F) | 8°C (47°F) | 10°C (50°F) | 10°C (51°F) | 10°C (50°F) | 11°C (51°F) | 10°C (51°F) |
| Perceived temperature | 3°C (38°F) | 4°C (40°F) | 5°C (40°F) | 6°C (43°F) | 7°C (44°F) | 6°C (42°F) | 7°C (45°F) | 8°C (46°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 88% | 85% | 90% | 86% | 84% | 86% | 87% | 86% |
| Barometric pressure | 1005 hPa | 1004 hPa | 1003 hPa | 1001 hPa | 1001 hPa | 999 hPa | 1000 hPa | 1003 hPa |
| Cloud cover | 86% | 100% | 100% | 100% | 100% | 100% | 89% | 48% |
| Heat index | 7°C (45°F) | 8°C (46°F) | 8°C (47°F) | 10°C (50°F) | 10°C (51°F) | 10°C (50°F) | 11°C (51°F) | 10°C (51°F) |
| Dew point | 5°C (41°F) | 5°C (41°F) | 7°C (44°F) | 8°C (46°F) | 8°C (46°F) | 8°C (46°F) | 9°C (47°F) | 8°C (47°F) |
| Wind | ||||||||
| Speed | 24km/h (15mph) | 19km/h (12mph) | 24km/h (15mph) | 33km/h (21mph) | 35km/h (22mph) | 38km/h (23mph) | 29km/h (18mph) | 22km/h (13mph) |
| Gusts | 36km/h (22mph) | 31km/h (19mph) | 36km/h (23mph) | 51km/h (32mph) | 37km/h (23mph) | 42km/h (26mph) | 36km/h (22mph) | 36km/h (22mph) |
| Direction | 199° SSW | 173° S | 164° SSE | 170° S | 179° S | 175° S | 192° SSW | 188° S |
| Wind chill | 3°C (38°F) | 4°C (40°F) | 5°C (40°F) | 6°C (43°F) | 7°C (44°F) | 6°C (42°F) | 7°C (45°F) | 8°C (46°F) |
| Waves | ||||||||
| Height | 0.9m (2.9ft) | 0.9m (3.1ft) | 1.1m (3.5ft) | 1.1m (3.6ft) | 1.0m (3.3ft) | 0.8m (2.7ft) | 0.8m (2.6ft) | 0.8m (2.7ft) |
| Direction | 299° WNW | 300° WNW | 302° WNW | 303° WNW | 299° WNW | 298° WNW | 298° WNW | 298° WNW |
| Period | 12.1 sec. | 12.2 sec. | 12.6 sec. | 4.6 sec. | 12.1 sec. | 8.4 sec. | 8.7 sec. | 8.2 sec. |
| Significant height | 1.1m (3.6ft) | 1.3m (4.3ft) | 1.6m (5.2ft) | 1.7m (5.6ft) | 1.1m (3.6ft) | 0.8m (2.6ft) | 1.0m (3.3ft) | 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) |