Sea weather in Dalkey Island in Ireland All the beach weather in Dalkey Island
All the essential weather information for enjoying the beach in Dalkey Island 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 Dalkey Island over the next 7 days?
Discover the best moment to go to the beach in Dalkey Island in Ireland this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Dalkey Island. 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 | 19.3mph | not recommended | all the sea weather |
| Saturday 6 December 2025 | 50°F to 52°F | 18mph | discouraged | all the sea weather |
| Sunday 7 December 2025 | 47°F to 52°F | 10.6mph | discouraged | all the sea weather |
| Monday 8 December 2025 | 47°F to 54°F | 12.4mph | discouraged | all the sea weather |
| Tuesday 9 December 2025 | 50°F to 52°F | 16.2mph | discouraged | all the sea weather |
| Wednesday 10 December 2025 | 49°F to 50°F | 14.9mph | discouraged | all the sea weather |
| Thursday 11 December 2025 | 50°F to 54°F | 23mph | not recommended | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Dalkey Island
Sea weather on Friday 5 December 2025
On Friday 5 December 2025, the sun will rise at 08:22 and will set at 16:08 on the beach(es) of Dalkey Island. The outside temperature will be a high of 52°F t and a low of 45°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 42.9mph km/h (with gusts up to 44.1mph). 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 | 7°C (45°F) | 7°C (45°F) | 8°C (46°F) | 10°C (49°F) | 9°C (47°F) | 10°C (49°F) | 10°C (50°F) | 10°C (51°F) |
| Perceived temperature | 5°C (40°F) | 5°C (41°F) | 4°C (40°F) | 5°C (41°F) | 3°C (37°F) | 4°C (40°F) | 6°C (43°F) | 7°C (44°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0.1in | 0in | 0in |
| Humidity | 79% | 77% | 75% | 74% | 89% | 93% | 80% | 80% |
| Barometric pressure | 1000 hPa | 1000 hPa | 998 hPa | 995 hPa | 990 hPa | 981 hPa | 979 hPa | 980 hPa |
| Cloud cover | 40% | 32% | 100% | 58% | 100% | 100% | 54% | 79% |
| Heat index | 7°C (45°F) | 7°C (45°F) | 8°C (46°F) | 10°C (49°F) | 9°C (47°F) | 10°C (49°F) | 10°C (50°F) | 10°C (51°F) |
| Dew point | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 5°C (41°F) | 7°C (44°F) | 8°C (47°F) | 7°C (44°F) | 7°C (45°F) |
| Wind | ||||||||
| Speed | 16km/h (10mph) | 14km/h (9mph) | 23km/h (14mph) | 47km/h (29mph) | 66km/h (41mph) | 69km/h (43mph) | 36km/h (23mph) | 31km/h (19mph) |
| Gusts | 23km/h (14mph) | 20km/h (13mph) | 33km/h (21mph) | 63km/h (39mph) | 71km/h (44mph) | 70km/h (43mph) | 40km/h (25mph) | 43km/h (27mph) |
| Direction | 230° SW | 219° SW | 182° S | 178° S | 155° SSE | 157° SSE | 199° SSW | 220° SW |
| Wind chill | 5°C (40°F) | 5°C (41°F) | 4°C (40°F) | 5°C (41°F) | 3°C (37°F) | 4°C (40°F) | 6°C (43°F) | 7°C (44°F) |
| Waves | ||||||||
| Height | 0.5m (1.6ft) | 0.5m (1.7ft) | 0.5m (1.5ft) | 1.1m (3.7ft) | 2.5m (8.1ft) | 3.0m (9.9ft) | 2.0m (6.4ft) | 1.6m (5.2ft) |
| Direction | 260° W | 250° WSW | 210° SSW | 171° S | 158° SSE | 149° SSE | 148° SSE | 151° SSE |
| Period | 6.8 sec. | 6.8 sec. | 18.8 sec. | 18.8 sec. | 6.3 sec. | 7.7 sec. | 8.3 sec. | 8.2 sec. |
| Significant height | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 1.6m (5.2ft) | 2.8m (9.2ft) | 2.8m (9.2ft) | 1.2m (3.9ft) | 1.2m (3.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) |
Sea weather on Saturday 6 December 2025
On Saturday 6 December 2025, the sun will rise at 08:23 and will set at 16:07 on the beach(es) of Dalkey Island. 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 20.5mph km/h (with gusts up to 31.7mph). Wave height will be up to 4.9ft 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) | 10°C (50°F) | 10°C (49°F) | 11°C (51°F) | 10°C (51°F) | 11°C (51°F) | 11°C (51°F) | 10°C (51°F) |
| Perceived temperature | 7°C (44°F) | 7°C (45°F) | 7°C (44°F) | 7°C (45°F) | 7°C (44°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 81% | 76% | 78% | 80% | 80% | 83% | 83% | 80% |
| Barometric pressure | 980 hPa | 982 hPa | 983 hPa | 986 hPa | 989 hPa | 990 hPa | 994 hPa | 998 hPa |
| Cloud cover | 100% | 100% | 91% | 100% | 97% | 100% | 82% | 88% |
| Heat index | 10°C (49°F) | 10°C (50°F) | 10°C (49°F) | 11°C (51°F) | 10°C (51°F) | 11°C (51°F) | 11°C (51°F) | 10°C (51°F) |
| Dew point | 6°C (44°F) | 6°C (43°F) | 6°C (43°F) | 7°C (45°F) | 7°C (45°F) | 8°C (46°F) | 8°C (46°F) | 7°C (45°F) |
| Wind | ||||||||
| Speed | 20km/h (12mph) | 19km/h (12mph) | 22km/h (13mph) | 28km/h (18mph) | 33km/h (21mph) | 32km/h (20mph) | 33km/h (21mph) | 29km/h (18mph) |
| Gusts | 27km/h (17mph) | 27km/h (17mph) | 30km/h (18mph) | 39km/h (24mph) | 48km/h (30mph) | 46km/h (29mph) | 51km/h (32mph) | 41km/h (26mph) |
| Direction | 193° SSW | 238° WSW | 220° SW | 239° WSW | 249° WSW | 252° WSW | 271° W | 251° WSW |
| Wind chill | 7°C (44°F) | 7°C (45°F) | 7°C (44°F) | 7°C (45°F) | 7°C (44°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
| Waves | ||||||||
| Height | 1.5m (5.1ft) | 1.5m (4.9ft) | 1.4m (4.7ft) | 1.4m (4.7ft) | 1.4m (4.7ft) | 1.3m (4.4ft) | 1.4m (4.5ft) | 1.3m (4.4ft) |
| Direction | 170° S | 168° SSE | 172° S | 207° SSW | 156° SSE | 234° SW | 223° SW | 228° SW |
| Period | 6.7 sec. | 8.3 sec. | 5.8 sec. | 18.0 sec. | 5.9 sec. | 5.9 sec. | 5.3 sec. | 5.7 sec. |
| Significant height | 1.5m (4.9ft) | 1.6m (5.2ft) | 1.5m (4.9ft) | 1.4m (4.6ft) | 1.5m (4.9ft) | 1.5m (4.9ft) | 1.8m (5.9ft) | 1.5m (4.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) |
Sea weather on Sunday 7 December 2025
On Sunday 7 December 2025, the sun will rise at 08:25 and will set at 16:07 on the beach(es) of Dalkey Island. The outside temperature will be a high of 52°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 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 | 10°C (50°F) | 9°C (48°F) | 9°C (48°F) | 11°C (52°F) | 11°C (51°F) | 10°C (51°F) | 9°C (48°F) | 9°C (48°F) |
| Perceived temperature | 7°C (44°F) | 7°C (44°F) | 6°C (43°F) | 8°C (46°F) | 8°C (46°F) | 7°C (44°F) | 5°C (41°F) | 6°C (44°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 75% | 79% | 86% | 94% | 97% | 79% | 75% | 76% |
| Barometric pressure | 1000 hPa | 999 hPa | 997 hPa | 995 hPa | 993 hPa | 996 hPa | 1000 hPa | 1003 hPa |
| Cloud cover | 19% | 3% | 92% | 100% | 100% | 18% | 47% | 0% |
| Heat index | 10°C (50°F) | 9°C (48°F) | 9°C (48°F) | 11°C (52°F) | 11°C (51°F) | 10°C (51°F) | 9°C (48°F) | 9°C (48°F) |
| Dew point | 6°C (42°F) | 5°C (42°F) | 7°C (44°F) | 10°C (50°F) | 10°C (50°F) | 7°C (45°F) | 5°C (41°F) | 5°C (41°F) |
| Wind | ||||||||
| Speed | 27km/h (17mph) | 14km/h (9mph) | 20km/h (13mph) | 33km/h (21mph) | 22km/h (14mph) | 38km/h (24mph) | 33km/h (21mph) | 17km/h (11mph) |
| Gusts | 37km/h (23mph) | 22km/h (14mph) | 31km/h (19mph) | 48km/h (30mph) | 34km/h (21mph) | 42km/h (26mph) | 51km/h (32mph) | 26km/h (16mph) |
| Direction | 232° SW | 195° SSW | 174° S | 150° SSE | 162° SSE | 279° W | 275° W | 236° WSW |
| Wind chill | 7°C (44°F) | 7°C (44°F) | 6°C (43°F) | 8°C (46°F) | 8°C (46°F) | 7°C (44°F) | 5°C (41°F) | 6°C (44°F) |
| Waves | ||||||||
| Height | 1.0m (3.3ft) | 0.7m (2.3ft) | 0.7m (2.4ft) | 1.0m (3.2ft) | 0.9m (3.1ft) | 0.9m (3.1ft) | 1.1m (3.5ft) | 1.1m (3.6ft) |
| Direction | 235° SW | 158° SSE | 159° SSE | 156° SSE | 162° SSE | 161° SSE | 244° WSW | 263° W |
| Period | 5.7 sec. | 9.2 sec. | 9.2 sec. | 8.6 sec. | 6.8 sec. | 6.8 sec. | 8.0 sec. | 8.9 sec. |
| Significant height | 1.0m (3.3ft) | 0.5m (1.6ft) | 1.2m (3.9ft) | 0.7m (2.3ft) | 1.3m (4.3ft) | 1.4m (4.6ft) | 1.6m (5.2ft) | 1.4m (4.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) |
Sea weather on Monday 8 December 2025
On Monday 8 December 2025, the sun will rise at 08:26 and will set at 16:07 on the beach(es) of Dalkey Island. The outside temperature will be a high of 54°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 18.6mph km/h (with gusts up to 28.6mph). 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 | 8°C (47°F) | 9°C (49°F) | 12°C (53°F) | 11°C (53°F) | 11°C (51°F) | 11°C (51°F) | 10°C (51°F) | 10°C (51°F) |
| Perceived temperature | 6°C (42°F) | 6°C (42°F) | 9°C (48°F) | 9°C (49°F) | 9°C (48°F) | 9°C (47°F) | 8°C (46°F) | 8°C (46°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 81% | 88% | 84% | 78% | 78% | 83% | 87% | 87% |
| Barometric pressure | 1004 hPa | 1003 hPa | 1000 hPa | 1002 hPa | 1003 hPa | 1003 hPa | 1003 hPa | 1003 hPa |
| Cloud cover | 6% | 100% | 29% | 5% | 10% | 100% | 100% | 51% |
| Heat index | 8°C (47°F) | 9°C (49°F) | 12°C (53°F) | 11°C (53°F) | 11°C (51°F) | 11°C (51°F) | 10°C (51°F) | 10°C (51°F) |
| Dew point | 5°C (41°F) | 7°C (45°F) | 9°C (48°F) | 8°C (46°F) | 7°C (44°F) | 8°C (46°F) | 8°C (47°F) | 8°C (47°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 30km/h (19mph) | 30km/h (19mph) | 19km/h (12mph) | 13km/h (8mph) | 18km/h (11mph) | 19km/h (12mph) | 20km/h (12mph) |
| Gusts | 23km/h (14mph) | 46km/h (28mph) | 45km/h (28mph) | 29km/h (18mph) | 22km/h (13mph) | 29km/h (18mph) | 32km/h (20mph) | 30km/h (19mph) |
| Direction | 184° S | 180° S | 182° S | 220° SW | 185° S | 182° S | 192° SSW | 196° SSW |
| Wind chill | 6°C (42°F) | 6°C (42°F) | 9°C (48°F) | 9°C (49°F) | 9°C (48°F) | 9°C (47°F) | 8°C (46°F) | 8°C (46°F) |
| Waves | ||||||||
| Height | 0.8m (2.7ft) | 0.8m (2.7ft) | 0.9m (3.1ft) | 1.0m (3.2ft) | 1.0m (3.2ft) | 0.9m (3.1ft) | 1.0m (3.4ft) | 1.1m (3.6ft) |
| Direction | 155° SSE | 154° SSE | 154° SSE | 153° SSE | 153° SSE | 154° SSE | 194° SSW | 184° S |
| Period | 10.2 sec. | 4.2 sec. | 10.9 sec. | 5.3 sec. | 5.5 sec. | 10.4 sec. | 10.1 sec. | 10.0 sec. |
| Significant height | 0.8m (2.6ft) | 0.9m (3ft) | 1.1m (3.6ft) | 1.3m (4.3ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.2m (3.9ft) | 1.2m (3.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) |
Sea weather on Tuesday 9 December 2025
On Tuesday 9 December 2025, the sun will rise at 08:27 and will set at 16:06 on the beach(es) of Dalkey Island. 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. The sea will be generally calm, with a wind speed of up to 16.8mph km/h (with gusts up to 24.9mph). Wave height will be up to 12.5ft 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) | 11°C (51°F) | 10°C (51°F) | 11°C (51°F) | 10°C (50°F) | 10°C (49°F) |
| Perceived temperature | 8°C (46°F) | 7°C (45°F) | 8°C (46°F) | 9°C (48°F) | 7°C (45°F) | 8°C (47°F) | 7°C (45°F) | 6°C (43°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 86% | 87% | 89% | 95% | 94% | 98% | 97% | 92% |
| Barometric pressure | 1003 hPa | 1002 hPa | 1000 hPa | 998 hPa | 994 hPa | 990 hPa | 989 hPa | 991 hPa |
| Cloud cover | 75% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 10°C (50°F) | 10°C (49°F) | 10°C (50°F) | 11°C (51°F) | 10°C (51°F) | 11°C (51°F) | 10°C (50°F) | 10°C (49°F) |
| Dew point | 8°C (46°F) | 8°C (46°F) | 8°C (47°F) | 10°C (50°F) | 9°C (49°F) | 10°C (51°F) | 10°C (50°F) | 8°C (47°F) |
| Wind | ||||||||
| Speed | 17km/h (10mph) | 20km/h (12mph) | 16km/h (10mph) | 12km/h (7mph) | 27km/h (17mph) | 19km/h (12mph) | 23km/h (14mph) | 26km/h (16mph) |
| Gusts | 25km/h (16mph) | 30km/h (19mph) | 24km/h (15mph) | 17km/h (10mph) | 40km/h (25mph) | 29km/h (18mph) | 35km/h (22mph) | 36km/h (22mph) |
| Direction | 190° S | 187° S | 176° S | 107° ESE | 58° ENE | 31° NNE | 343° NNW | 291° WNW |
| Wind chill | 8°C (46°F) | 7°C (45°F) | 8°C (46°F) | 9°C (48°F) | 7°C (45°F) | 8°C (47°F) | 7°C (45°F) | 6°C (43°F) |
| Waves | ||||||||
| Height | 1.0m (3.1ft) | 0.9m (3.0ft) | 0.9m (3.0ft) | 1.6m (5.2ft) | 2.6m (8.5ft) | 2.7m (8.9ft) | 3.3m (10.8ft) | 3.8m (12.5ft) |
| Direction | 172° S | 155° SSE | 155° SSE | 164° SSE | 153° SSE | 155° SSE | 151° SSE | 149° SSE |
| Period | 9.9 sec. | 9.8 sec. | 19.2 sec. | 19.2 sec. | 6.7 sec. | 8.0 sec. | 9.2 sec. | 9.7 sec. |
| Significant height | 0.8m (2.6ft) | 0.8m (2.6ft) | 0.8m (2.6ft) | 1.6m (5.2ft) | 2.5m (8.2ft) | 2.3m (7.5ft) | 2.8m (9.2ft) | 3.5m (11.5ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) |
Sea weather on Wednesday 10 December 2025
On Wednesday 10 December 2025, the sun will rise at 08:28 and will set at 16:06 on the beach(es) of Dalkey Island. The outside temperature will be a high of 50°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 27.3mph). Wave height will be up to 11.2ft 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) | 9°C (49°F) | 10°C (50°F) | 10°C (49°F) | 9°C (47°F) | 9°C (48°F) | 10°C (49°F) |
| Perceived temperature | 7°C (44°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 6°C (43°F) | 4°C (40°F) | 5°C (40°F) | 6°C (43°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 83% | 79% | 77% | 77% | 77% | 74% | 77% | 74% |
| Barometric pressure | 995 hPa | 997 hPa | 997 hPa | 997 hPa | 999 hPa | 1002 hPa | 1006 hPa | 1008 hPa |
| Cloud cover | 100% | 30% | 88% | 100% | 51% | 6% | 22% | 13% |
| Heat index | 10°C (50°F) | 10°C (50°F) | 9°C (49°F) | 10°C (50°F) | 10°C (49°F) | 9°C (47°F) | 9°C (48°F) | 10°C (49°F) |
| Dew point | 7°C (45°F) | 7°C (44°F) | 6°C (42°F) | 6°C (43°F) | 6°C (42°F) | 4°C (40°F) | 5°C (41°F) | 5°C (41°F) |
| Wind | ||||||||
| Speed | 25km/h (15mph) | 21km/h (13mph) | 15km/h (9mph) | 19km/h (12mph) | 31km/h (19mph) | 36km/h (22mph) | 35km/h (22mph) | 24km/h (15mph) |
| Gusts | 35km/h (21mph) | 29km/h (18mph) | 23km/h (14mph) | 28km/h (18mph) | 44km/h (27mph) | 42km/h (26mph) | 36km/h (22mph) | 37km/h (23mph) |
| Direction | 265° W | 253° WSW | 182° S | 220° SW | 255° WSW | 260° W | 255° WSW | 223° SW |
| Wind chill | 7°C (44°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) | 6°C (43°F) | 4°C (40°F) | 5°C (40°F) | 6°C (43°F) |
| Waves | ||||||||
| Height | 3.4m (11.2ft) | 2.5m (8.2ft) | 2.1m (6.9ft) | 1.8m (6.1ft) | 1.7m (5.7ft) | 1.5m (4.8ft) | 1.2m (4.0ft) | 1.1m (3.6ft) |
| Direction | 148° SSE | 152° SSE | 154° SSE | 153° SSE | 153° SSE | 154° SSE | 153° SSE | 155° SSE |
| Period | 10.6 sec. | 13.1 sec. | 15.5 sec. | 15.8 sec. | 15.6 sec. | 14.8 sec. | 6.4 sec. | 13.1 sec. |
| Significant height | 2.8m (9.2ft) | 1.6m (5.2ft) | 1.7m (5.6ft) | 1.6m (5.2ft) | 1.8m (5.9ft) | 1.4m (4.6ft) | 1.1m (3.6ft) | 1.2m (3.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) | 12°C (53°F) |
Sea weather on Thursday 11 December 2025
On Thursday 11 December 2025, the sun will rise at 08:29 and will set at 16:06 on the beach(es) of Dalkey Island. 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. Be careful, the sea will be generally rough with a wind speed of up to 32.9mph km/h (with gusts up to 36mph). 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 | 10°C (50°F) | 11°C (51°F) | 11°C (52°F) | 12°C (53°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 12°C (53°F) |
| Perceived temperature | 7°C (44°F) | 7°C (45°F) | 8°C (46°F) | 8°C (46°F) | 7°C (45°F) | 7°C (44°F) | 7°C (45°F) | 8°C (47°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 79% | 80% | 83% | 81% | 84% | 89% | 90% | 91% |
| Barometric pressure | 1009 hPa | 1008 hPa | 1007 hPa | 1006 hPa | 1006 hPa | 1004 hPa | 1006 hPa | 1007 hPa |
| Cloud cover | 60% | 63% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 10°C (50°F) | 11°C (51°F) | 11°C (52°F) | 12°C (53°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 12°C (53°F) |
| Dew point | 7°C (44°F) | 7°C (45°F) | 9°C (47°F) | 8°C (47°F) | 9°C (47°F) | 9°C (49°F) | 9°C (49°F) | 10°C (50°F) |
| Wind | ||||||||
| Speed | 30km/h (18mph) | 35km/h (22mph) | 39km/h (24mph) | 42km/h (26mph) | 45km/h (28mph) | 53km/h (33mph) | 41km/h (26mph) | 37km/h (23mph) |
| Gusts | 42km/h (26mph) | 51km/h (32mph) | 42km/h (26mph) | 49km/h (30mph) | 52km/h (32mph) | 58km/h (36mph) | 48km/h (30mph) | 43km/h (27mph) |
| Direction | 203° SSW | 196° SSW | 189° S | 188° S | 185° S | 179° S | 192° SSW | 185° S |
| Wind chill | 7°C (44°F) | 7°C (45°F) | 8°C (46°F) | 8°C (46°F) | 7°C (45°F) | 7°C (44°F) | 7°C (45°F) | 8°C (47°F) |
| Waves | ||||||||
| Height | 1.2m (3.9ft) | 1.8m (5.8ft) | 2.7m (8.8ft) | 1.9m (6.2ft) | 1.3m (4.3ft) | 1.0m (3.4ft) | 1.0m (3.4ft) | 1.5m (4.9ft) |
| Direction | 180° S | 167° SSE | 158° SSE | 154° SSE | 153° SSE | 155° SSE | 156° SSE | 167° SSE |
| Period | 13.1 sec. | 5.3 sec. | 7.0 sec. | 8.6 sec. | 9.0 sec. | 9.4 sec. | 9.4 sec. | 4.8 sec. |
| Significant height | 1.4m (4.6ft) | 1.8m (5.9ft) | 2.7m (8.9ft) | 1.2m (3.9ft) | 0.9m (3ft) | 1.1m (3.6ft) | 1.4m (4.6ft) | 1.6m (5.2ft) |
| Sea water temperature | ||||||||
| Water temperature | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) |