Sea weather in Castletownbere in Ireland All the beach weather in Castletownbere
All the essential weather information for enjoying the beach in Castletownbere in 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 Castletownbere over the next 7 days?
Discover the best moment to go to the beach in Castletownbere in Ireland this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Castletownbere. 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 | 47°F to 54°F | 36mph | not recommended | all the sea weather |
| Saturday 6 December 2025 | 49°F to 52°F | 10.6mph | not recommended | all the sea weather |
| Sunday 7 December 2025 | 43°F to 52°F | 13.7mph | discouraged | all the sea weather |
| Monday 8 December 2025 | 50°F to 54°F | 14.3mph | discouraged | all the sea weather |
| Tuesday 9 December 2025 | 49°F to 52°F | 8.7mph | recommended | all the sea weather |
| Wednesday 10 December 2025 | 49°F to 50°F | 21.1mph | discouraged | all the sea weather |
| Thursday 11 December 2025 | 50°F to 52°F | 14.9mph | not recommended | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Castletownbere
Sea weather on Friday 5 December 2025
On Friday 5 December 2025, the sun will rise at 08:28 and will set at 16:29 on the beach(es) of Castletownbere. The outside temperature will be a high of 54°F t and a low of 47°F. Precipitation is in the forecast (0.2in 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 36mph km/h (with gusts up to 39.2mph). Wave height will be up to 17.1ft 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) | 9°C (48°F) | 11°C (51°F) | 11°C (53°F) | 10°C (50°F) | 9°C (49°F) | 10°C (50°F) |
| Perceived temperature | 5°C (42°F) | 4°C (39°F) | 4°C (39°F) | 6°C (44°F) | 7°C (45°F) | 6°C (43°F) | 4°C (40°F) | 5°C (42°F) |
| Precipitation | 0in | 0in | 0in | 0.1in | 0in | 0in | 0in | 0in |
| Humidity | 64% | 84% | 93% | 96% | 83% | 86% | 84% | 86% |
| Barometric pressure | 1001 hPa | 998 hPa | 992 hPa | 983 hPa | 980 hPa | 979 hPa | 981 hPa | 980 hPa |
| Cloud cover | 85% | 100% | 100% | 100% | 72% | 95% | 100% | 60% |
| Heat index | 9°C (48°F) | 8°C (46°F) | 9°C (48°F) | 11°C (51°F) | 11°C (53°F) | 10°C (50°F) | 9°C (49°F) | 10°C (50°F) |
| Dew point | 2°C (36°F) | 5°C (42°F) | 8°C (46°F) | 10°C (50°F) | 9°C (48°F) | 8°C (46°F) | 7°C (44°F) | 8°C (46°F) |
| Wind | ||||||||
| Speed | 25km/h (15mph) | 30km/h (19mph) | 50km/h (31mph) | 54km/h (34mph) | 51km/h (32mph) | 47km/h (29mph) | 51km/h (32mph) | 58km/h (36mph) |
| Gusts | 38km/h (24mph) | 42km/h (26mph) | 51km/h (32mph) | 56km/h (35mph) | 53km/h (33mph) | 53km/h (33mph) | 57km/h (35mph) | 63km/h (39mph) |
| Direction | 218° SW | 187° S | 154° SSE | 163° SSE | 232° SW | 234° SW | 238° WSW | 261° W |
| Wind chill | 5°C (42°F) | 4°C (39°F) | 4°C (39°F) | 6°C (44°F) | 7°C (45°F) | 6°C (43°F) | 4°C (40°F) | 5°C (42°F) |
| Waves | ||||||||
| Height | 3.3m (10.7ft) | 3.1m (10.0ft) | 3.0m (9.7ft) | 3.4m (11.1ft) | 3.3m (10.9ft) | 3.5m (11.4ft) | 4.1m (13.6ft) | 5.2m (17.0ft) |
| Direction | 265° W | 266° W | 267° W | 268° W | 224° SW | 233° SW | 239° WSW | 247° WSW |
| Period | 16.4 sec. | 16.0 sec. | 15.8 sec. | 15.7 sec. | 8.4 sec. | 9.4 sec. | 10.8 sec. | 12.4 sec. |
| Significant height | 0.9m (3ft) | 1.2m (3.9ft) | 2.0m (6.6ft) | 2.2m (7.2ft) | 1.8m (5.9ft) | 1.7m (5.6ft) | 2.1m (6.9ft) | 2.3m (7.5ft) |
| 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 Saturday 6 December 2025
On Saturday 6 December 2025, the sun will rise at 08:29 and will set at 16:29 on the beach(es) of Castletownbere. The outside temperature will be a high of 52°F t and a low of 49°F. Precipitation is in the forecast (0.2in 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 36mph km/h (with gusts up to 38.5mph). Wave height will be up to 21.7ft 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) | 11°C (51°F) | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 9°C (48°F) | 10°C (50°F) |
| Perceived temperature | 5°C (42°F) | 6°C (43°F) | 6°C (42°F) | 6°C (42°F) | 5°C (42°F) | 6°C (42°F) | 5°C (42°F) | 7°C (45°F) |
| Precipitation | 0.1in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 89% | 84% | 84% | 85% | 83% | 80% | 80% | 87% |
| Barometric pressure | 982 hPa | 985 hPa | 989 hPa | 993 hPa | 996 hPa | 998 hPa | 999 hPa | 1000 hPa |
| Cloud cover | 100% | 100% | 66% | 78% | 69% | 85% | 73% | 55% |
| Heat index | 10°C (50°F) | 11°C (51°F) | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 9°C (48°F) | 10°C (50°F) |
| Dew point | 9°C (47°F) | 8°C (47°F) | 8°C (46°F) | 8°C (46°F) | 7°C (45°F) | 7°C (44°F) | 6°C (43°F) | 8°C (46°F) |
| Wind | ||||||||
| Speed | 58km/h (36mph) | 57km/h (35mph) | 54km/h (33mph) | 54km/h (34mph) | 54km/h (33mph) | 45km/h (28mph) | 31km/h (19mph) | 17km/h (11mph) |
| Gusts | 60km/h (37mph) | 62km/h (39mph) | 56km/h (35mph) | 55km/h (34mph) | 57km/h (36mph) | 52km/h (32mph) | 31km/h (19mph) | 28km/h (17mph) |
| Direction | 258° WSW | 264° W | 264° W | 262° W | 262° W | 262° W | 258° WSW | 234° SW |
| Wind chill | 5°C (42°F) | 6°C (43°F) | 6°C (42°F) | 6°C (42°F) | 5°C (42°F) | 6°C (42°F) | 5°C (42°F) | 7°C (45°F) |
| Waves | ||||||||
| Height | 6.2m (20.4ft) | 6.5m (21.4ft) | 6.6m (21.8ft) | 6.3m (20.7ft) | 5.7m (18.7ft) | 5.1m (16.9ft) | 4.4m (14.4ft) | 3.8m (12.3ft) |
| Direction | 246° WSW | 243° WSW | 244° WSW | 245° WSW | 247° WSW | 248° WSW | 249° WSW | 250° WSW |
| Period | 14.3 sec. | 16.0 sec. | 16.5 sec. | 16.3 sec. | 15.8 sec. | 15.4 sec. | 14.7 sec. | 14.4 sec. |
| Significant height | 2.6m (8.5ft) | 2.1m (6.9ft) | 2.4m (7.9ft) | 2.2m (7.2ft) | 2.0m (6.6ft) | 1.8m (5.9ft) | 1.1m (3.6ft) | 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) |
Sea weather on Sunday 7 December 2025
On Sunday 7 December 2025, the sun will rise at 08:30 and will set at 16:29 on the beach(es) of Castletownbere. The outside temperature will be a high of 52°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 19.3mph km/h (with gusts up to 28.6mph). 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 | 10°C (50°F) | 11°C (51°F) | 11°C (52°F) | 11°C (51°F) | 11°C (51°F) | 9°C (49°F) | 8°C (47°F) | 10°C (50°F) |
| Perceived temperature | 8°C (46°F) | 8°C (46°F) | 9°C (48°F) | 7°C (45°F) | 7°C (45°F) | 6°C (43°F) | 6°C (44°F) | 7°C (45°F) |
| Precipitation | 0in | 0in | 0.1in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 93% | 97% | 99% | 86% | 86% | 78% | 83% | 91% |
| Barometric pressure | 998 hPa | 996 hPa | 993 hPa | 997 hPa | 999 hPa | 1001 hPa | 1001 hPa | 1002 hPa |
| Cloud cover | 64% | 100% | 100% | 54% | 53% | 8% | 9% | 81% |
| Heat index | 10°C (50°F) | 11°C (51°F) | 11°C (52°F) | 11°C (51°F) | 11°C (51°F) | 9°C (49°F) | 8°C (47°F) | 10°C (50°F) |
| Dew point | 9°C (48°F) | 10°C (50°F) | 11°C (52°F) | 8°C (47°F) | 8°C (47°F) | 6°C (42°F) | 6°C (42°F) | 8°C (47°F) |
| Wind | ||||||||
| Speed | 18km/h (11mph) | 26km/h (16mph) | 20km/h (13mph) | 31km/h (19mph) | 31km/h (19mph) | 26km/h (16mph) | 11km/h (7mph) | 22km/h (13mph) |
| Gusts | 29km/h (18mph) | 39km/h (24mph) | 33km/h (21mph) | 46km/h (29mph) | 46km/h (29mph) | 33km/h (21mph) | 22km/h (14mph) | 37km/h (23mph) |
| Direction | 152° SSE | 130° SE | 160° SSE | 282° WNW | 273° W | 263° W | 215° SW | 166° SSE |
| Wind chill | 8°C (46°F) | 8°C (46°F) | 9°C (48°F) | 7°C (45°F) | 7°C (45°F) | 6°C (43°F) | 6°C (44°F) | 7°C (45°F) |
| Waves | ||||||||
| Height | 3.3m (10.7ft) | 3.0m (9.8ft) | 2.9m (9.4ft) | 2.9m (9.4ft) | 2.8m (9.3ft) | 2.7m (8.9ft) | 2.7m (9.0ft) | 2.8m (9.1ft) |
| Direction | 251° WSW | 253° WSW | 253° WSW | 253° WSW | 244° WSW | 225° SW | 217° SW | 217° SW |
| Period | 14.1 sec. | 13.4 sec. | 13.2 sec. | 8.9 sec. | 9.0 sec. | 9.2 sec. | 10.0 sec. | 10.6 sec. |
| Significant height | 0.7m (2.3ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 1.5m (4.9ft) | 1.4m (4.6ft) | 1.0m (3.3ft) | 0.5m (1.6ft) | 0.7m (2.3ft) |
| 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 08:31 and will set at 16:28 on the beach(es) of Castletownbere. The outside temperature will be a high of 54°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 23mph km/h (with gusts up to 25.5mph). Wave height will be up to 13.1ft 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) | 12°C (53°F) | 11°C (51°F) | 10°C (50°F) | 10°C (51°F) | 10°C (50°F) | 10°C (49°F) | 10°C (50°F) |
| Perceived temperature | 8°C (46°F) | 8°C (47°F) | 7°C (45°F) | 8°C (46°F) | 8°C (47°F) | 8°C (46°F) | 7°C (44°F) | 7°C (45°F) |
| Precipitation | 0.1in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 92% | 86% | 85% | 88% | 87% | 89% | 92% | 93% |
| Barometric pressure | 1000 hPa | 1000 hPa | 1001 hPa | 1002 hPa | 1002 hPa | 1001 hPa | 1002 hPa | 1002 hPa |
| Cloud cover | 100% | 74% | 89% | 83% | 71% | 100% | 100% | 100% |
| Heat index | 11°C (52°F) | 12°C (53°F) | 11°C (51°F) | 10°C (50°F) | 10°C (51°F) | 10°C (50°F) | 10°C (49°F) | 10°C (50°F) |
| Dew point | 10°C (50°F) | 9°C (49°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 9°C (47°F) | 8°C (47°F) | 9°C (49°F) |
| Wind | ||||||||
| Speed | 31km/h (19mph) | 37km/h (23mph) | 27km/h (17mph) | 19km/h (12mph) | 17km/h (11mph) | 17km/h (10mph) | 25km/h (16mph) | 23km/h (15mph) |
| Gusts | 36km/h (22mph) | 39km/h (25mph) | 41km/h (26mph) | 30km/h (19mph) | 28km/h (17mph) | 28km/h (17mph) | 41km/h (25mph) | 36km/h (22mph) |
| Direction | 184° S | 219° SW | 234° SW | 219° SW | 204° SSW | 175° S | 196° SSW | 188° S |
| Wind chill | 8°C (46°F) | 8°C (47°F) | 7°C (45°F) | 8°C (46°F) | 8°C (47°F) | 8°C (46°F) | 7°C (44°F) | 7°C (45°F) |
| Waves | ||||||||
| Height | 2.7m (8.9ft) | 2.7m (9.0ft) | 2.9m (9.7ft) | 3.3m (10.9ft) | 3.7m (12.2ft) | 3.9m (12.8ft) | 4.0m (13.1ft) | 4.0m (13.3ft) |
| Direction | 216° SW | 216° SW | 218° SW | 250° WSW | 251° WSW | 250° WSW | 250° WSW | 248° WSW |
| Period | 10.7 sec. | 10.5 sec. | 10.5 sec. | 10.2 sec. | 18.1 sec. | 17.7 sec. | 17.6 sec. | 17.5 sec. |
| Significant height | 0.7m (2.3ft) | 1.5m (4.9ft) | 0.9m (3ft) | 0.8m (2.6ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.0m (3.3ft) | 1.1m (3.6ft) |
| 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 Tuesday 9 December 2025
On Tuesday 9 December 2025, the sun will rise at 08:32 and will set at 16:28 on the beach(es) of Castletownbere. 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 11.8mph km/h (with gusts up to 19.3mph). Wave height will be up to 26.2ft 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 (51°F) | 10°C (50°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 9°C (49°F) | 10°C (50°F) |
| Perceived temperature | 8°C (47°F) | 9°C (48°F) | 8°C (47°F) | 7°C (45°F) | 8°C (46°F) | 7°C (45°F) | 7°C (44°F) | 8°C (46°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 94% | 95% | 96% | 95% | 92% | 92% | 91% | 85% |
| Barometric pressure | 1001 hPa | 999 hPa | 997 hPa | 995 hPa | 994 hPa | 993 hPa | 995 hPa | 997 hPa |
| Cloud cover | 89% | 99% | 100% | 100% | 100% | 100% | 100% | 67% |
| Heat index | 10°C (51°F) | 10°C (51°F) | 10°C (50°F) | 10°C (49°F) | 10°C (49°F) | 10°C (49°F) | 9°C (49°F) | 10°C (50°F) |
| Dew point | 10°C (49°F) | 10°C (49°F) | 9°C (49°F) | 9°C (48°F) | 8°C (47°F) | 8°C (47°F) | 8°C (46°F) | 8°C (46°F) |
| Wind | ||||||||
| Speed | 17km/h (11mph) | 13km/h (8mph) | 12km/h (7mph) | 16km/h (10mph) | 11km/h (7mph) | 18km/h (11mph) | 19km/h (12mph) | 14km/h (9mph) |
| Gusts | 26km/h (16mph) | 20km/h (12mph) | 18km/h (11mph) | 23km/h (15mph) | 17km/h (11mph) | 27km/h (17mph) | 31km/h (19mph) | 22km/h (14mph) |
| Direction | 178° S | 169° SSE | 98° E | 64° ENE | 340° NNW | 306° NW | 296° WNW | 242° WSW |
| Wind chill | 8°C (47°F) | 9°C (48°F) | 8°C (47°F) | 7°C (45°F) | 8°C (46°F) | 7°C (45°F) | 7°C (44°F) | 8°C (46°F) |
| Waves | ||||||||
| Height | 4.1m (13.3ft) | 3.9m (12.9ft) | 3.9m (12.7ft) | 3.9m (12.9ft) | 4.5m (14.9ft) | 5.2m (17.1ft) | 6.9m (22.7ft) | 8.0m (26.3ft) |
| Direction | 247° WSW | 247° WSW | 248° WSW | 249° WSW | 202° SSW | 199° SSW | 202° SSW | 209° SSW |
| Period | 17.3 sec. | 16.9 sec. | 16.3 sec. | 15.9 sec. | 15.4 sec. | 14.8 sec. | 14.7 sec. | 14.7 sec. |
| Significant height | 0.7m (2.3ft) | 0.9m (3ft) | 1.9m (6.2ft) | 1.6m (5.2ft) | 2.2m (7.2ft) | 2.2m (7.2ft) | 3.5m (11.5ft) | 2.9m (9.5ft) |
| 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 08:34 and will set at 16:28 on the beach(es) of Castletownbere. 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 24.9mph km/h (with gusts up to 29.2mph). Wave height will be up to 23.3ft 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 (49°F) | 9°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (51°F) |
| Perceived temperature | 7°C (45°F) | 6°C (43°F) | 6°C (42°F) | 5°C (42°F) | 6°C (42°F) | 6°C (43°F) | 6°C (43°F) | 7°C (44°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 87% | 86% | 81% | 79% | 77% | 81% | 82% | 82% |
| Barometric pressure | 997 hPa | 997 hPa | 998 hPa | 1001 hPa | 1004 hPa | 1006 hPa | 1007 hPa | 1007 hPa |
| Cloud cover | 70% | 58% | 77% | 81% | 70% | 87% | 86% | 86% |
| Heat index | 10°C (50°F) | 10°C (49°F) | 10°C (50°F) | 10°C (49°F) | 9°C (49°F) | 10°C (49°F) | 10°C (49°F) | 10°C (51°F) |
| Dew point | 8°C (47°F) | 7°C (45°F) | 7°C (44°F) | 6°C (43°F) | 6°C (42°F) | 6°C (44°F) | 7°C (44°F) | 8°C (46°F) |
| Wind | ||||||||
| Speed | 23km/h (14mph) | 26km/h (16mph) | 40km/h (25mph) | 40km/h (25mph) | 34km/h (21mph) | 32km/h (20mph) | 29km/h (18mph) | 34km/h (21mph) |
| Gusts | 35km/h (22mph) | 43km/h (26mph) | 47km/h (29mph) | 40km/h (25mph) | 40km/h (25mph) | 34km/h (21mph) | 30km/h (19mph) | 35km/h (22mph) |
| Direction | 224° SW | 227° SW | 268° W | 262° W | 260° W | 244° WSW | 221° SW | 200° SSW |
| Wind chill | 7°C (45°F) | 6°C (43°F) | 6°C (42°F) | 5°C (42°F) | 6°C (42°F) | 6°C (43°F) | 6°C (43°F) | 7°C (44°F) |
| Waves | ||||||||
| Height | 7.1m (23.2ft) | 6.2m (20.4ft) | 5.5m (17.9ft) | 4.6m (15.0ft) | 3.8m (12.6ft) | 3.3m (11.0ft) | 3.0m (9.9ft) | 3.0m (9.8ft) |
| Direction | 214° SW | 218° SW | 221° SW | 226° SW | 224° SW | 227° SW | 227° SW | 229° SW |
| Period | 15.1 sec. | 14.6 sec. | 14.6 sec. | 13.4 sec. | 12.4 sec. | 12.2 sec. | 11.7 sec. | 11.1 sec. |
| Significant height | 2.1m (6.9ft) | 1.5m (4.9ft) | 1.1m (3.6ft) | 1.4m (4.6ft) | 1.2m (3.9ft) | 0.9m (3ft) | 0.8m (2.6ft) | 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 Thursday 11 December 2025
On Thursday 11 December 2025, the sun will rise at 08:35 and will set at 16:28 on the beach(es) of Castletownbere. The outside temperature will be a high of 52°F t and a low of 50°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 36mph km/h (with gusts up to 36.7mph). Wave height will be up to 13.8ft 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) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 10°C (51°F) | 11°C (51°F) |
| Perceived temperature | 7°C (45°F) | 7°C (45°F) | 7°C (44°F) | 6°C (44°F) | 7°C (45°F) | 8°C (47°F) | 7°C (45°F) | 8°C (46°F) |
| Precipitation | 0in | 0.1in | 0.1in | 0.1in | 0in | 0in | 0in | 0in |
| Humidity | 86% | 90% | 91% | 93% | 95% | 87% | 90% | 88% |
| Barometric pressure | 1006 hPa | 1003 hPa | 1001 hPa | 1000 hPa | 999 hPa | 1001 hPa | 1002 hPa | 1004 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 83% | 75% | 82% |
| Heat index | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 10°C (51°F) | 11°C (51°F) |
| Dew point | 9°C (47°F) | 9°C (49°F) | 10°C (49°F) | 10°C (50°F) | 10°C (50°F) | 9°C (48°F) | 9°C (48°F) | 9°C (48°F) |
| Wind | ||||||||
| Speed | 42km/h (26mph) | 46km/h (29mph) | 53km/h (33mph) | 58km/h (36mph) | 47km/h (29mph) | 29km/h (18mph) | 26km/h (16mph) | 24km/h (15mph) |
| Gusts | 43km/h (26mph) | 52km/h (32mph) | 56km/h (35mph) | 59km/h (36mph) | 53km/h (33mph) | 31km/h (19mph) | 28km/h (17mph) | 41km/h (26mph) |
| Direction | 189° S | 182° S | 179° S | 180° S | 190° S | 199° SSW | 190° S | 188° S |
| Wind chill | 7°C (45°F) | 7°C (45°F) | 7°C (44°F) | 6°C (44°F) | 7°C (45°F) | 8°C (47°F) | 7°C (45°F) | 8°C (46°F) |
| Waves | ||||||||
| Height | 3.4m (11.1ft) | 4.2m (13.6ft) | 4.2m (13.7ft) | 3.8m (12.5ft) | 3.5m (11.6ft) | 3.6m (11.7ft) | 3.8m (12.5ft) | 4.1m (13.5ft) |
| Direction | 229° SW | 213° SSW | 226° SW | 238° WSW | 238° WSW | 239° WSW | 240° WSW | 238° WSW |
| Period | 10.9 sec. | 10.0 sec. | 10.2 sec. | 12.1 sec. | 12.1 sec. | 12.1 sec. | 11.9 sec. | 12.0 sec. |
| Significant height | 2.1m (6.9ft) | 1.9m (6.2ft) | 1.9m (6.2ft) | 0.9m (3ft) | 1.1m (3.6ft) | 1.4m (4.6ft) | 1.5m (4.9ft) | 1.6m (5.2ft) |
| 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) |