Sea weather in Seltjarnarnes in Iceland All the beach weather in Seltjarnarnes
All the essential weather information for enjoying the beach in Seltjarnarnes in Iceland, 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 Seltjarnarnes over the next 7 days?
Discover the best moment to go to the beach in Seltjarnarnes in Iceland this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Seltjarnarnes. 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 |
|---|---|---|---|---|
| Sunday 14 December 2025 | 32°F to 40°F | 8.7mph | not recommended | all the sea weather |
| Monday 15 December 2025 | 31°F to 36°F | 10.6mph | not recommended | all the sea weather |
| Tuesday 16 December 2025 | 29°F to 36°F | 23mph | not recommended | all the sea weather |
| Wednesday 17 December 2025 | 38°F to 43°F | 21.1mph | not recommended | all the sea weather |
| Thursday 18 December 2025 | 38°F to 41°F | 26.7mph | not recommended | all the sea weather |
| Friday 19 December 2025 | 36°F to 38°F | 14.9mph | not recommended | all the sea weather |
| Saturday 20 December 2025 | 38°F to 41°F | 11.2mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Seltjarnarnes
Sea weather on Sunday 14 December 2025
On Sunday 14 December 2025, the sun will rise at 11:16 and will set at 15:30 on the beach(es) of Seltjarnarnes. The outside temperature will be a high of 40°F t and a low of 32°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 19.9mph km/h (with gusts up to 27.3mph). Wave height will be up to 5.2ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition |  | |  |  |  |  | | |
| Outside temperature | 3°C (38°F) | 4°C (38°F) | 3°C (38°F) | 4°C (39°F) | 2°C (36°F) | 2°C (35°F) | 2°C (35°F) | 2°C (36°F) |
| Perceived temperature | 1°C (34°F) | 0°C (32°F) | -2°C (29°F) | -2°C (29°F) | 1°C (33°F) | -2°C (28°F) | -1°C (30°F) | -2°C (29°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 71% | 74% | 73% | 90% | 90% | 79% | 76% | 78% |
| Barometric pressure | 971 hPa | 971 hPa | 970 hPa | 972 hPa | 975 hPa | 974 hPa | 973 hPa | 973 hPa |
| Cloud cover | 79% | 66% | 100% | 83% | 81% | 9% | 16% | 12% |
| Heat index | 3°C (38°F) | 4°C (38°F) | 3°C (38°F) | 4°C (39°F) | 2°C (36°F) | 2°C (35°F) | 2°C (35°F) | 2°C (36°F) |
| Dew point | -1°C (29°F) | -1°C (31°F) | -1°C (30°F) | 2°C (36°F) | 1°C (34°F) | -2°C (29°F) | -2°C (28°F) | -1°C (29°F) |
| Wind | ||||||||
| Speed | 8km/h (5mph) | 15km/h (9mph) | 22km/h (14mph) | 32km/h (20mph) | 6km/h (4mph) | 14km/h (9mph) | 10km/h (6mph) | 14km/h (9mph) |
| Gusts | 12km/h (7mph) | 22km/h (14mph) | 32km/h (20mph) | 44km/h (27mph) | 11km/h (7mph) | 26km/h (16mph) | 19km/h (12mph) | 23km/h (14mph) |
| Direction | 73° ENE | 107° ESE | 83° E | 224° SW | 137° SE | 99° E | 91° E | 29° NNE |
| Wind chill | 1°C (34°F) | 0°C (32°F) | -2°C (29°F) | -2°C (29°F) | 1°C (33°F) | -2°C (28°F) | -1°C (30°F) | -2°C (29°F) |
| Waves | ||||||||
| Height | 0.6m (2.1ft) | 0.6m (2.0ft) | 1.4m (4.5ft) | 1.6m (5.4ft) | 1.6m (5.3ft) | 1.6m (5.2ft) | 1.6m (5.2ft) | 1.5m (5.0ft) |
| Direction | 244° WSW | 242° WSW | 236° SW | 235° SW | 236° SW | 239° WSW | 240° WSW | 238° WSW |
| Period | 10.1 sec. | 9.8 sec. | 10.1 sec. | 11.2 sec. | 12.9 sec. | 12.5 sec. | 12.3 sec. | 12.4 sec. |
| Significant height | 0.6m (2ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.3m (1ft) | 0.3m (1ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) |
Sea weather on Monday 15 December 2025
On Monday 15 December 2025, the sun will rise at 11:17 and will set at 15:30 on the beach(es) of Seltjarnarnes. The outside temperature will be a high of 36°F t and a low of 31°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 11.8mph km/h (with gusts up to 18mph). Wave height will be up to 6.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 2°C (35°F) | 1°C (35°F) | 1°C (34°F) | 1°C (33°F) | 0°C (32°F) | -0°C (32°F) | -0°C (31°F) | -0°C (32°F) |
| Perceived temperature | -1°C (31°F) | -3°C (27°F) | -2°C (28°F) | -4°C (26°F) | -5°C (23°F) | -5°C (22°F) | -6°C (22°F) | -5°C (23°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 76% | 77% | 74% | 74% | 78% | 79% | 80% | 80% |
| Barometric pressure | 973 hPa | 972 hPa | 972 hPa | 974 hPa | 975 hPa | 976 hPa | 978 hPa | 981 hPa |
| Cloud cover | 3% | 5% | 13% | 6% | 15% | 35% | 61% | 35% |
| Heat index | 2°C (35°F) | 1°C (35°F) | 1°C (34°F) | 1°C (33°F) | 0°C (32°F) | -0°C (32°F) | -0°C (31°F) | -0°C (32°F) |
| Dew point | -2°C (29°F) | -2°C (28°F) | -3°C (27°F) | -3°C (26°F) | -3°C (26°F) | -3°C (26°F) | -3°C (26°F) | -3°C (27°F) |
| Wind | ||||||||
| Speed | 8km/h (5mph) | 15km/h (9mph) | 13km/h (8mph) | 16km/h (10mph) | 19km/h (12mph) | 19km/h (12mph) | 19km/h (12mph) | 17km/h (11mph) |
| Gusts | 13km/h (8mph) | 22km/h (14mph) | 19km/h (12mph) | 24km/h (15mph) | 29km/h (18mph) | 29km/h (18mph) | 29km/h (18mph) | 24km/h (15mph) |
| Direction | 36° NE | 25° NNE | 50° NE | 31° NNE | 25° NNE | 20° NNE | 9° N | 17° NNE |
| Wind chill | -1°C (31°F) | -3°C (27°F) | -2°C (28°F) | -4°C (26°F) | -5°C (23°F) | -5°C (22°F) | -6°C (22°F) | -5°C (23°F) |
| Waves | ||||||||
| Height | 1.6m (5.1ft) | 1.8m (5.9ft) | 2.1m (7.1ft) | 2.1m (7.0ft) | 2.0m (6.5ft) | 1.9m (6.1ft) | 1.7m (5.7ft) | 1.6m (5.2ft) |
| Direction | 238° WSW | 238° WSW | 236° WSW | 236° WSW | 237° WSW | 237° WSW | 238° WSW | 238° WSW |
| Period | 15.5 sec. | 15.9 sec. | 16.3 sec. | 15.8 sec. | 15.3 sec. | 15.1 sec. | 14.7 sec. | 14.4 sec. |
| Significant height | 0.3m (1ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.6m (2ft) | 0.6m (2ft) | 0.6m (2ft) | 0.7m (2.3ft) | 0.5m (1.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) |
Sea weather on Tuesday 16 December 2025
On Tuesday 16 December 2025, the sun will rise at 11:19 and will set at 15:29 on the beach(es) of Seltjarnarnes. The outside temperature will be a high of 36°F t and a low of 29°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 23mph km/h (with gusts up to 23mph). 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 | 0°C (32°F) | -0°C (32°F) | -0°C (31°F) | -0°C (31°F) | -1°C (30°F) | -2°C (29°F) | -1°C (31°F) | 1°C (34°F) |
| Perceived temperature | -4°C (24°F) | -4°C (25°F) | -3°C (27°F) | -4°C (25°F) | -5°C (23°F) | -7°C (20°F) | -7°C (20°F) | -5°C (22°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 78% | 77% | 72% | 72% | 71% | 65% | 66% | 67% |
| Barometric pressure | 985 hPa | 988 hPa | 991 hPa | 993 hPa | 995 hPa | 994 hPa | 992 hPa | 989 hPa |
| Cloud cover | 27% | 30% | 28% | 7% | 6% | 3% | 22% | 8% |
| Heat index | 0°C (32°F) | -0°C (32°F) | -0°C (31°F) | -0°C (31°F) | -1°C (30°F) | -2°C (29°F) | -1°C (31°F) | 1°C (34°F) |
| Dew point | -3°C (26°F) | -4°C (25°F) | -5°C (24°F) | -5°C (23°F) | -5°C (22°F) | -7°C (19°F) | -6°C (21°F) | -4°C (25°F) |
| Wind | ||||||||
| Speed | 14km/h (9mph) | 12km/h (8mph) | 7km/h (4mph) | 10km/h (6mph) | 13km/h (8mph) | 17km/h (11mph) | 27km/h (17mph) | 37km/h (23mph) |
| Gusts | 19km/h (12mph) | 17km/h (11mph) | 10km/h (6mph) | 15km/h (9mph) | 22km/h (14mph) | 33km/h (21mph) | 32km/h (20mph) | 37km/h (23mph) |
| Direction | 14° NNE | 26° NNE | 54° NE | 78° ENE | 143° SE | 118° ESE | 98° E | 103° ESE |
| Wind chill | -4°C (24°F) | -4°C (25°F) | -3°C (27°F) | -4°C (25°F) | -5°C (23°F) | -7°C (20°F) | -7°C (20°F) | -5°C (22°F) |
| Waves | ||||||||
| Height | 1.4m (4.6ft) | 1.3m (4.3ft) | 1.3m (4.3ft) | 1.3m (4.2ft) | 1.2m (3.9ft) | 1.1m (3.6ft) | 1.1m (3.5ft) | 1.0m (3.3ft) |
| Direction | 239° WSW | 239° WSW | 238° WSW | 237° WSW | 237° WSW | 238° WSW | 240° WSW | 239° WSW |
| Period | 14.2 sec. | 13.8 sec. | 13.4 sec. | 13.1 sec. | 12.8 sec. | 12.7 sec. | 12.4 sec. | 12.1 sec. |
| Significant height | 0.4m (1.3ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.1m (0.3ft) | 0.2m (0.7ft) | 0.3m (1ft) | 0.5m (1.6ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) |
Sea weather on Wednesday 17 December 2025
On Wednesday 17 December 2025, the sun will rise at 11:20 and will set at 15:29 on the beach(es) of Seltjarnarnes. The outside temperature will be a high of 43°F t and a low of 38°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 41mph km/h (with gusts up to 42.9mph). 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 | 3°C (37°F) | 3°C (38°F) | 5°C (41°F) | 5°C (42°F) | 4°C (39°F) | 4°C (39°F) | 3°C (38°F) | 4°C (40°F) |
| Perceived temperature | -4°C (25°F) | -4°C (24°F) | -2°C (28°F) | -0°C (31°F) | -2°C (28°F) | -3°C (27°F) | -3°C (27°F) | -1°C (30°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 67% | 90% | 86% | 76% | 89% | 88% | 92% | 85% |
| Barometric pressure | 983 hPa | 977 hPa | 972 hPa | 971 hPa | 970 hPa | 968 hPa | 966 hPa | 966 hPa |
| Cloud cover | 100% | 98% | 98% | 15% | 98% | 100% | 100% | 100% |
| Heat index | 3°C (37°F) | 3°C (38°F) | 5°C (41°F) | 5°C (42°F) | 4°C (39°F) | 4°C (39°F) | 3°C (38°F) | 4°C (40°F) |
| Dew point | -3°C (27°F) | 2°C (35°F) | 3°C (37°F) | 1°C (35°F) | 3°C (37°F) | 2°C (36°F) | 2°C (36°F) | 2°C (36°F) |
| Wind | ||||||||
| Speed | 47km/h (29mph) | 66km/h (41mph) | 64km/h (40mph) | 42km/h (26mph) | 45km/h (28mph) | 47km/h (29mph) | 35km/h (22mph) | 34km/h (21mph) |
| Gusts | 52km/h (32mph) | 69km/h (43mph) | 65km/h (40mph) | 47km/h (29mph) | 46km/h (28mph) | 50km/h (31mph) | 38km/h (23mph) | 48km/h (30mph) |
| Direction | 96° E | 108° ESE | 123° ESE | 130° SE | 120° ESE | 115° ESE | 97° E | 119° ESE |
| Wind chill | -4°C (25°F) | -4°C (24°F) | -2°C (28°F) | -0°C (31°F) | -2°C (28°F) | -3°C (27°F) | -3°C (27°F) | -1°C (30°F) |
| Waves | ||||||||
| Height | 0.9m (3.0ft) | 1.1m (3.6ft) | 1.3m (4.3ft) | 0.7m (2.4ft) | 0.7m (2.3ft) | 0.8m (2.6ft) | 1.6m (5.4ft) | 3.3m (10.8ft) |
| Direction | 239° WSW | 239° WSW | 60° ENE | 229° SW | 227° SW | 225° SW | 230° SW | 232° SW |
| Period | 12.0 sec. | 12.0 sec. | 11.9 sec. | 11.9 sec. | 11.7 sec. | 11.5 sec. | 20.5 sec. | 20.5 sec. |
| Significant height | 1.1m (3.6ft) | 2.0m (6.6ft) | 1.9m (6.2ft) | 0.4m (1.3ft) | 0.9m (3ft) | 0.9m (3ft) | 0.7m (2.3ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) |
Sea weather on Thursday 18 December 2025
On Thursday 18 December 2025, the sun will rise at 11:21 and will set at 15:29 on the beach(es) of Seltjarnarnes. The outside temperature will be a high of 41°F t and a low of 38°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 35.4mph). Wave height will be up to 11.5ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | |  | | |  |
| Outside temperature | 5°C (42°F) | 3°C (38°F) | 5°C (41°F) | 5°C (40°F) | 5°C (40°F) | 4°C (40°F) | 4°C (39°F) | 3°C (37°F) |
| Perceived temperature | 0°C (33°F) | -1°C (31°F) | -1°C (30°F) | -1°C (30°F) | -2°C (29°F) | -2°C (29°F) | -2°C (28°F) | -4°C (25°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 78% | 95% | 79% | 73% | 69% | 70% | 75% | 86% |
| Barometric pressure | 969 hPa | 971 hPa | 976 hPa | 980 hPa | 983 hPa | 984 hPa | 985 hPa | 985 hPa |
| Cloud cover | 67% | 95% | 100% | 75% | 86% | 70% | 79% | 100% |
| Heat index | 5°C (42°F) | 3°C (38°F) | 5°C (41°F) | 5°C (40°F) | 5°C (40°F) | 4°C (40°F) | 4°C (39°F) | 3°C (37°F) |
| Dew point | 2°C (35°F) | 3°C (37°F) | 1°C (35°F) | 0°C (32°F) | -1°C (31°F) | -1°C (31°F) | -0°C (32°F) | 1°C (33°F) |
| Wind | ||||||||
| Speed | 31km/h (19mph) | 18km/h (11mph) | 41km/h (25mph) | 41km/h (25mph) | 43km/h (27mph) | 41km/h (26mph) | 41km/h (26mph) | 43km/h (27mph) |
| Gusts | 46km/h (28mph) | 26km/h (16mph) | 57km/h (36mph) | 57km/h (36mph) | 43km/h (27mph) | 46km/h (28mph) | 43km/h (27mph) | 57km/h (35mph) |
| Direction | 163° SSE | 142° SE | 178° S | 168° SSE | 159° SSE | 148° SSE | 116° ESE | 106° ESE |
| Wind chill | 0°C (33°F) | -1°C (31°F) | -1°C (30°F) | -1°C (30°F) | -2°C (29°F) | -2°C (29°F) | -2°C (28°F) | -4°C (25°F) |
| Waves | ||||||||
| Height | 3.5m (11.5ft) | 3.5m (11.4ft) | 3.3m (10.9ft) | 3.1m (10.2ft) | 2.7m (8.8ft) | 2.2m (7.2ft) | 1.7m (5.7ft) | 1.5m (4.9ft) |
| Direction | 233° SW | 235° SW | 235° SW | 235° SW | 235° SW | 235° SW | 236° SW | 236° WSW |
| Period | 19.8 sec. | 19.4 sec. | 19.0 sec. | 18.2 sec. | 17.5 sec. | 16.2 sec. | 15.5 sec. | 15.4 sec. |
| Significant height | 1.4m (4.6ft) | 1.4m (4.6ft) | 0.8m (2.6ft) | 1.1m (3.6ft) | 0.9m (3ft) | 0.6m (2ft) | 0.4m (1.3ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) |
Sea weather on Friday 19 December 2025
On Friday 19 December 2025, the sun will rise at 11:22 and will set at 15:29 on the beach(es) of Seltjarnarnes. The outside temperature will be a high of 38°F t and a low of 36°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 26.1mph km/h (with gusts up to 34.8mph). Wave height will be up to 3.9ft today.
| 0:00 | 3:00 | 6:00 | 9:00 | 12:00 | 15:00 | 18:00 | 21:00 | |
| Weather | ||||||||
| Sky condition | | | | | | | | |
| Outside temperature | 3°C (37°F) | 2°C (36°F) | 3°C (38°F) | 3°C (38°F) | 3°C (37°F) | 3°C (37°F) | 3°C (37°F) | 3°C (38°F) |
| Perceived temperature | -4°C (24°F) | -5°C (24°F) | -3°C (26°F) | -3°C (27°F) | -3°C (27°F) | -2°C (28°F) | -2°C (29°F) | -2°C (29°F) |
| Precipitation | 0.1in | 0.1in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 89% | 95% | 86% | 87% | 87% | 91% | 91% | 87% |
| Barometric pressure | 984 hPa | 984 hPa | 984 hPa | 986 hPa | 988 hPa | 989 hPa | 991 hPa | 992 hPa |
| Cloud cover | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 56% |
| Heat index | 3°C (37°F) | 2°C (36°F) | 3°C (38°F) | 3°C (38°F) | 3°C (37°F) | 3°C (37°F) | 3°C (37°F) | 3°C (38°F) |
| Dew point | 1°C (34°F) | 1°C (35°F) | 1°C (34°F) | 1°C (34°F) | 1°C (34°F) | 2°C (35°F) | 1°C (35°F) | 1°C (34°F) |
| Wind | ||||||||
| Speed | 42km/h (26mph) | 41km/h (26mph) | 37km/h (23mph) | 33km/h (20mph) | 29km/h (18mph) | 27km/h (17mph) | 20km/h (13mph) | 24km/h (15mph) |
| Gusts | 55km/h (34mph) | 56km/h (34mph) | 53km/h (33mph) | 46km/h (29mph) | 42km/h (26mph) | 41km/h (26mph) | 31km/h (19mph) | 38km/h (24mph) |
| Direction | 108° ESE | 103° ESE | 98° E | 103° ESE | 100° E | 109° ESE | 107° ESE | 86° E |
| Wind chill | -4°C (24°F) | -5°C (24°F) | -3°C (26°F) | -3°C (27°F) | -3°C (27°F) | -2°C (28°F) | -2°C (29°F) | -2°C (29°F) |
| Waves | ||||||||
| Height | 1.2m (4.1ft) | 1.1m (3.6ft) | 1.1m (3.7ft) | 1.2m (4.0ft) | 1.2m (3.9ft) | 1.2m (3.8ft) | 1.1m (3.6ft) | 1.0m (3.3ft) |
| Direction | 236° WSW | 238° WSW | 239° WSW | 239° WSW | 240° WSW | 239° WSW | 239° WSW | 239° WSW |
| Period | 14.7 sec. | 14.5 sec. | 14.3 sec. | 13.6 sec. | 13.3 sec. | 13.1 sec. | 12.8 sec. | 12.2 sec. |
| Significant height | 0.5m (1.6ft) | 0.7m (2.3ft) | 0.9m (3ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 0.9m (3ft) | 0.8m (2.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) | 6°C (42°F) |
Sea weather on Saturday 20 December 2025
On Saturday 20 December 2025, the sun will rise at 11:23 and will set at 15:30 on the beach(es) of Seltjarnarnes. The outside temperature will be a high of 41°F t and a low of 38°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 23mph km/h (with gusts up to 33.6mph). 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 | 4°C (39°F) | 4°C (38°F) | 3°C (37°F) | 3°C (38°F) | 4°C (39°F) | 5°C (40°F) | 5°C (41°F) | 5°C (42°F) |
| Perceived temperature | -1°C (30°F) | -1°C (30°F) | -2°C (28°F) | -3°C (27°F) | -2°C (29°F) | -1°C (31°F) | 1°C (33°F) | 2°C (35°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 82% | 77% | 88% | 93% | 87% | 86% | 85% | 85% |
| Barometric pressure | 992 hPa | 992 hPa | 991 hPa | 991 hPa | 991 hPa | 991 hPa | 992 hPa | 994 hPa |
| Cloud cover | 97% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 4°C (39°F) | 4°C (38°F) | 3°C (37°F) | 3°C (38°F) | 4°C (39°F) | 5°C (40°F) | 5°C (41°F) | 5°C (42°F) |
| Dew point | 1°C (34°F) | 0°C (32°F) | 1°C (34°F) | 2°C (36°F) | 2°C (36°F) | 3°C (37°F) | 3°C (37°F) | 3°C (38°F) |
| Wind | ||||||||
| Speed | 24km/h (15mph) | 23km/h (14mph) | 23km/h (14mph) | 36km/h (23mph) | 37km/h (23mph) | 35km/h (21mph) | 25km/h (16mph) | 18km/h (11mph) |
| Gusts | 39km/h (24mph) | 36km/h (22mph) | 32km/h (20mph) | 54km/h (33mph) | 37km/h (23mph) | 40km/h (25mph) | 27km/h (17mph) | 35km/h (22mph) |
| Direction | 78° ENE | 80° E | 73° ENE | 82° E | 82° E | 78° ENE | 85° E | 65° ENE |
| Wind chill | -1°C (30°F) | -1°C (30°F) | -2°C (28°F) | -3°C (27°F) | -2°C (29°F) | -1°C (31°F) | 1°C (33°F) | 2°C (35°F) |
| Waves | ||||||||
| Height | 0.9m (2.9ft) | 0.7m (2.5ft) | 0.6m (2.1ft) | 0.6m (1.9ft) | 0.6m (1.8ft) | 0.6m (1.9ft) | 0.7m (2.3ft) | 0.8m (2.6ft) |
| Direction | 239° WSW | 239° WSW | 238° WSW | 238° WSW | 238° WSW | 237° WSW | 237° WSW | 240° WSW |
| Period | 12.0 sec. | 11.9 sec. | 11.8 sec. | 11.2 sec. | 10.9 sec. | 9.3 sec. | 6.0 sec. | 6.6 sec. |
| Significant height | 0.6m (2ft) | 0.4m (1.3ft) | 0.3m (1ft) | 0.3m (1ft) | 0.3m (1ft) | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.9m (3ft) |
| Sea water temperature | ||||||||
| Water temperature | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) | 4°C (39°F) |