Sea weather in Keflavík in Iceland All the beach weather in Keflavík
All the essential weather information for enjoying the beach in Keflavík 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 Keflavík over the next 7 days?
Discover the best moment to go to the beach in Keflavík in Iceland this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Keflavík. 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 19 July 2026 | 52°F to 52°F | 14.9mph | discouraged | all the sea weather |
| Monday 20 July 2026 | 52°F to 52°F | 13.7mph | discouraged | all the sea weather |
| Tuesday 21 July 2026 | 50°F to 52°F | 6.8mph | discouraged | all the sea weather |
| Wednesday 22 July 2026 | 50°F to 54°F | 18.6mph | discouraged | all the sea weather |
| Thursday 23 July 2026 | 50°F to 52°F | 13.1mph | discouraged | all the sea weather |
| Friday 24 July 2026 | 49°F to 54°F | 13.7mph | discouraged | all the sea weather |
| Saturday 25 July 2026 | 49°F to 54°F | 24.2mph | discouraged | all the sea weather |
Sea Weather: Your daily and hourly sea weather in Keflavík
Sea weather on Sunday 19 July 2026
On Sunday 19 July 2026, the sun will rise at 03:57 and will set at 23:13 on the beach(es) of Keflavík. The outside temperature will be a high of 52°F t and a low of 52°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 17.4mph km/h (with gusts up to 24.2mph). Wave height will be up to 4.3ft 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 (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) |
| Perceived temperature | 9°C (48°F) | 9°C (47°F) | 9°C (48°F) | 9°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 9°C (47°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 98% | 97% | 96% | 97% | 96% | 94% | 96% | 95% |
| Barometric pressure | 1025 hPa | 1025 hPa | 1025 hPa | 1026 hPa | 1026 hPa | 1026 hPa | 1026 hPa | 1027 hPa |
| Cloud cover | 100% | 100% | 100% | 90% | 100% | 100% | 96% | 100% |
| Heat index | 11°C (51°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) |
| Dew point | 10°C (51°F) | 11°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 (51°F) |
| Wind | ||||||||
| Speed | 15km/h (9mph) | 21km/h (13mph) | 21km/h (13mph) | 23km/h (14mph) | 25km/h (16mph) | 28km/h (17mph) | 25km/h (16mph) | 24km/h (15mph) |
| Gusts | 24km/h (15mph) | 33km/h (20mph) | 35km/h (22mph) | 39km/h (24mph) | 26km/h (16mph) | 32km/h (20mph) | 27km/h (17mph) | 30km/h (18mph) |
| Direction | 234° SW | 239° WSW | 226° SW | 224° SW | 228° SW | 233° SW | 225° SW | 218° SW |
| Wind chill | 9°C (48°F) | 9°C (47°F) | 9°C (48°F) | 9°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 9°C (47°F) |
| Waves | ||||||||
| Height | 1.1m (3.8ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.2m (4.0ft) | 1.3m (4.1ft) | 1.3m (4.2ft) | 1.3m (4.2ft) | 1.3m (4.4ft) |
| Direction | 242° WSW | 242° WSW | 241° WSW | 241° WSW | 240° WSW | 239° WSW | 238° WSW | 237° WSW |
| Period | 10.9 sec. | 11.6 sec. | 12.4 sec. | 12.2 sec. | 12.1 sec. | 10.3 sec. | 10.2 sec. | 10.1 sec. |
| Significant height | 0.5m (1.6ft) | 0.6m (2ft) | 0.6m (2ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.7m (2.3ft) | 0.8m (2.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) |
Sea weather on Monday 20 July 2026
On Monday 20 July 2026, the sun will rise at 04:00 and will set at 23:10 on the beach(es) of Keflavík. The outside temperature will be a high of 52°F t and a low of 52°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 25.5mph). Wave height will be up to 5.9ft 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 (51°F) | 11°C (51°F) | 11°C (51°F) |
| Perceived temperature | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (46°F) | 7°C (45°F) | 8°C (46°F) | 8°C (47°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 94% | 95% | 95% | 95% | 96% | 96% | 97% | 97% |
| Barometric pressure | 1026 hPa | 1026 hPa | 1026 hPa | 1025 hPa | 1025 hPa | 1025 hPa | 1026 hPa | 1026 hPa |
| Cloud cover | 91% | 95% | 98% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) |
| Dew point | 10°C (51°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) | 10°C (51°F) |
| Wind | ||||||||
| Speed | 27km/h (17mph) | 30km/h (19mph) | 30km/h (18mph) | 32km/h (20mph) | 36km/h (22mph) | 33km/h (21mph) | 23km/h (14mph) | 22km/h (14mph) |
| Gusts | 32km/h (20mph) | 32km/h (20mph) | 36km/h (22mph) | 33km/h (20mph) | 41km/h (25mph) | 37km/h (23mph) | 37km/h (23mph) | 34km/h (21mph) |
| Direction | 211° SSW | 212° SSW | 212° SSW | 209° SSW | 208° SSW | 229° SW | 227° SW | 217° SW |
| Wind chill | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (46°F) | 7°C (45°F) | 8°C (46°F) | 8°C (47°F) |
| Waves | ||||||||
| Height | 1.4m (4.5ft) | 1.4m (4.8ft) | 1.5m (5.1ft) | 1.6m (5.3ft) | 1.8m (6.0ft) | 1.8m (6.0ft) | 1.7m (5.7ft) | 1.7m (5.5ft) |
| Direction | 238° WSW | 239° WSW | 242° WSW | 245° WSW | 245° WSW | 243° WSW | 240° WSW | 236° WSW |
| Period | 9.9 sec. | 9.7 sec. | 12.5 sec. | 12.5 sec. | 12.4 sec. | 12.5 sec. | 8.0 sec. | 12.4 sec. |
| Significant height | 0.8m (2.6ft) | 0.8m (2.6ft) | 0.9m (3ft) | 1.0m (3.3ft) | 1.1m (3.6ft) | 0.8m (2.6ft) | 0.7m (2.3ft) | 0.7m (2.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) |
Sea weather on Tuesday 21 July 2026
On Tuesday 21 July 2026, the sun will rise at 04:03 and will set at 23:07 on the beach(es) of Keflavík. 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 13.1mph km/h (with gusts up to 19.3mph). 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 | 11°C (52°F) | 11°C (51°F) | 11°C (52°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) | 10°C (51°F) | 11°C (52°F) |
| Perceived temperature | 8°C (47°F) | 9°C (48°F) | 9°C (48°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 10°C (49°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 97% | 98% | 96% | 93% | 94% | 94% | 92% | 91% |
| Barometric pressure | 1026 hPa | 1025 hPa | 1026 hPa | 1026 hPa | 1027 hPa | 1028 hPa | 1028 hPa | 1028 hPa |
| Cloud cover | 100% | 100% | 100% | 75% | 87% | 70% | 39% | 50% |
| Heat index | 11°C (52°F) | 11°C (51°F) | 11°C (52°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) | 10°C (51°F) | 11°C (52°F) |
| Dew point | 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 (48°F) | 9°C (49°F) |
| Wind | ||||||||
| Speed | 21km/h (13mph) | 17km/h (10mph) | 18km/h (11mph) | 19km/h (12mph) | 18km/h (11mph) | 15km/h (10mph) | 14km/h (9mph) | 11km/h (7mph) |
| Gusts | 31km/h (19mph) | 25km/h (16mph) | 26km/h (16mph) | 28km/h (17mph) | 28km/h (17mph) | 24km/h (15mph) | 24km/h (15mph) | 18km/h (11mph) |
| Direction | 209° SSW | 219° SW | 229° SW | 237° WSW | 247° WSW | 258° WSW | 247° WSW | 232° SW |
| Wind chill | 8°C (47°F) | 9°C (48°F) | 9°C (48°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 8°C (47°F) | 10°C (49°F) |
| Waves | ||||||||
| Height | 1.6m (5.3ft) | 1.6m (5.2ft) | 1.5m (5.0ft) | 1.5m (4.9ft) | 1.5m (4.9ft) | 1.4m (4.7ft) | 1.4m (4.5ft) | 1.3m (4.3ft) |
| Direction | 235° SW | 236° SW | 239° WSW | 240° WSW | 241° WSW | 241° WSW | 241° WSW | 243° WSW |
| Period | 7.9 sec. | 7.7 sec. | 7.6 sec. | 7.5 sec. | 7.7 sec. | 7.6 sec. | 7.5 sec. | 7.1 sec. |
| Significant height | 0.7m (2.3ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.3m (1ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) |
Sea weather on Wednesday 22 July 2026
On Wednesday 22 July 2026, the sun will rise at 04:06 and will set at 23:04 on the beach(es) of Keflavík. The outside temperature will be a high of 54°F t and a low of 50°F. Precipitation is in the forecast (0.2in 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 28mph). Wave height will be up to 6.6ft 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) | 12°C (53°F) | 11°C (52°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) |
| Perceived temperature | 9°C (49°F) | 8°C (47°F) | 8°C (46°F) | 8°C (47°F) | 8°C (46°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
| Precipitation | 0in | 0in | 0.1in | 0in | 0in | 0in | 0in | 0.1in |
| Humidity | 90% | 92% | 98% | 95% | 96% | 97% | 96% | 98% |
| Barometric pressure | 1027 hPa | 1025 hPa | 1022 hPa | 1020 hPa | 1017 hPa | 1015 hPa | 1012 hPa | 1007 hPa |
| Cloud cover | 88% | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Heat index | 11°C (52°F) | 11°C (52°F) | 11°C (52°F) | 12°C (53°F) | 11°C (52°F) | 11°C (51°F) | 11°C (51°F) | 11°C (51°F) |
| Dew point | 10°C (49°F) | 10°C (50°F) | 11°C (52°F) | 11°C (52°F) | 11°C (51°F) | 10°C (51°F) | 10°C (50°F) | 10°C (51°F) |
| Wind | ||||||||
| Speed | 17km/h (11mph) | 24km/h (15mph) | 32km/h (20mph) | 36km/h (22mph) | 40km/h (25mph) | 34km/h (21mph) | 36km/h (22mph) | 30km/h (19mph) |
| Gusts | 26km/h (16mph) | 36km/h (23mph) | 32km/h (20mph) | 42km/h (26mph) | 44km/h (27mph) | 35km/h (22mph) | 43km/h (27mph) | 45km/h (28mph) |
| Direction | 194° SSW | 168° SSE | 173° S | 174° S | 194° SSW | 199° SSW | 191° S | 209° SSW |
| Wind chill | 9°C (49°F) | 8°C (47°F) | 8°C (46°F) | 8°C (47°F) | 8°C (46°F) | 7°C (45°F) | 7°C (45°F) | 7°C (45°F) |
| Waves | ||||||||
| Height | 1.2m (4.0ft) | 1.1m (3.8ft) | 1.1m (3.6ft) | 1.1m (3.7ft) | 1.2m (3.8ft) | 1.3m (4.4ft) | 1.7m (5.6ft) | 2.0m (6.6ft) |
| Direction | 243° WSW | 240° WSW | 236° SW | 232° SW | 231° SW | 232° SW | 235° SW | 239° WSW |
| Period | 7.0 sec. | 7.0 sec. | 7.0 sec. | 7.0 sec. | 11.7 sec. | 11.7 sec. | 15.2 sec. | 11.1 sec. |
| Significant height | 0.3m (1ft) | 0.4m (1.3ft) | 0.7m (2.3ft) | 1.1m (3.6ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 0.7m (2.3ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) |
Sea weather on Thursday 23 July 2026
On Thursday 23 July 2026, the sun will rise at 04:09 and will set at 23:01 on the beach(es) of Keflavík. 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 31.1mph). 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 | 11°C (51°F) | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (51°F) | 10°C (50°F) | 11°C (51°F) |
| Perceived temperature | 7°C (45°F) | 7°C (44°F) | 7°C (44°F) | 7°C (44°F) | 7°C (44°F) | 7°C (45°F) | 7°C (45°F) | 8°C (47°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 97% | 92% | 90% | 85% | 91% | 93% | 91% | 84% |
| Barometric pressure | 1007 hPa | 1006 hPa | 1006 hPa | 1005 hPa | 1003 hPa | 1002 hPa | 1000 hPa | 999 hPa |
| Cloud cover | 100% | 85% | 93% | 97% | 100% | 95% | 99% | 98% |
| Heat index | 11°C (51°F) | 10°C (51°F) | 10°C (50°F) | 10°C (50°F) | 10°C (50°F) | 10°C (51°F) | 10°C (50°F) | 11°C (51°F) |
| Dew point | 10°C (50°F) | 9°C (48°F) | 9°C (48°F) | 8°C (46°F) | 9°C (48°F) | 9°C (48°F) | 9°C (47°F) | 8°C (47°F) |
| Wind | ||||||||
| Speed | 33km/h (21mph) | 36km/h (22mph) | 33km/h (20mph) | 33km/h (20mph) | 32km/h (20mph) | 27km/h (17mph) | 21km/h (13mph) | 21km/h (13mph) |
| Gusts | 48km/h (30mph) | 50km/h (31mph) | 46km/h (28mph) | 45km/h (28mph) | 47km/h (29mph) | 39km/h (24mph) | 31km/h (19mph) | 30km/h (19mph) |
| Direction | 257° WSW | 242° WSW | 236° SW | 223° SW | 207° SSW | 215° SW | 221° SW | 236° SW |
| Wind chill | 7°C (45°F) | 7°C (44°F) | 7°C (44°F) | 7°C (44°F) | 7°C (44°F) | 7°C (45°F) | 7°C (45°F) | 8°C (47°F) |
| Waves | ||||||||
| Height | 2.1m (6.8ft) | 2.0m (6.7ft) | 2.1m (6.8ft) | 2.1m (6.9ft) | 2.0m (6.7ft) | 2.0m (6.5ft) | 2.0m (6.7ft) | 2.3m (7.5ft) |
| Direction | 238° WSW | 238° WSW | 236° SW | 235° SW | 234° SW | 232° SW | 231° SW | 232° SW |
| Period | 16.3 sec. | 16.3 sec. | 16.3 sec. | 15.4 sec. | 15.5 sec. | 15.5 sec. | 9.4 sec. | 9.6 sec. |
| Significant height | 0.9m (3ft) | 1.0m (3.3ft) | 1.1m (3.6ft) | 1.1m (3.6ft) | 1.0m (3.3ft) | 1.0m (3.3ft) | 0.9m (3ft) | 0.8m (2.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) |
Sea weather on Friday 24 July 2026
On Friday 24 July 2026, the sun will rise at 04:13 and will set at 22:58 on the beach(es) of Keflavík. 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 21.1mph km/h (with gusts up to 29.2mph). Wave height will be up to 8.2ft 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 (53°F) | 11°C (52°F) | 10°C (49°F) | 9°C (48°F) | 10°C (50°F) | 11°C (51°F) | 12°C (54°F) |
| Perceived temperature | 10°C (49°F) | 10°C (50°F) | 9°C (48°F) | 6°C (42°F) | 5°C (42°F) | 8°C (46°F) | 9°C (48°F) | 10°C (49°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 82% | 76% | 84% | 82% | 78% | 78% | 79% | 82% |
| Barometric pressure | 1000 hPa | 1000 hPa | 1001 hPa | 1001 hPa | 1002 hPa | 1002 hPa | 1002 hPa | 1001 hPa |
| Cloud cover | 72% | 63% | 8% | 5% | 3% | 3% | 7% | 20% |
| Heat index | 11°C (52°F) | 11°C (53°F) | 11°C (52°F) | 10°C (49°F) | 9°C (48°F) | 10°C (50°F) | 11°C (51°F) | 12°C (54°F) |
| Dew point | 8°C (46°F) | 7°C (45°F) | 8°C (47°F) | 7°C (44°F) | 5°C (42°F) | 6°C (43°F) | 7°C (45°F) | 9°C (48°F) |
| Wind | ||||||||
| Speed | 12km/h (7mph) | 12km/h (8mph) | 17km/h (11mph) | 34km/h (21mph) | 30km/h (19mph) | 17km/h (11mph) | 14km/h (9mph) | 22km/h (14mph) |
| Gusts | 17km/h (11mph) | 18km/h (11mph) | 26km/h (16mph) | 47km/h (29mph) | 33km/h (21mph) | 17km/h (11mph) | 29km/h (18mph) | 27km/h (17mph) |
| Direction | 295° WNW | 6° N | 5° N | 12° NNE | 25° NNE | 14° NNE | 331° NNW | 351° N |
| Wind chill | 10°C (49°F) | 10°C (50°F) | 9°C (48°F) | 6°C (42°F) | 5°C (42°F) | 8°C (46°F) | 9°C (48°F) | 10°C (49°F) |
| Waves | ||||||||
| Height | 2.4m (7.9ft) | 2.5m (8.2ft) | 2.4m (7.9ft) | 2.3m (7.5ft) | 2.1m (7.0ft) | 2.0m (6.7ft) | 2.1m (6.8ft) | 2.0m (6.6ft) |
| Direction | 233° SW | 237° WSW | 239° WSW | 238° WSW | 238° WSW | 240° WSW | 239° WSW | 239° WSW |
| Period | 9.9 sec. | 10.1 sec. | 10.0 sec. | 9.9 sec. | 9.7 sec. | 9.7 sec. | 9.8 sec. | 9.7 sec. |
| Significant height | 0.4m (1.3ft) | 0.5m (1.6ft) | 0.4m (1.3ft) | 0.2m (0.7ft) | 0.3m (1ft) | 0.7m (2.3ft) | 1.2m (3.9ft) | 1.2m (3.9ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) |
Sea weather on Saturday 25 July 2026
On Saturday 25 July 2026, the sun will rise at 04:16 and will set at 22:54 on the beach(es) of Keflavík. 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 24.2mph km/h (with gusts up to 33.6mph). 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 | 12°C (54°F) | 12°C (53°F) | 12°C (53°F) | 11°C (51°F) | 11°C (52°F) | 11°C (51°F) | 9°C (48°F) | 10°C (50°F) |
| Perceived temperature | 11°C (52°F) | 11°C (51°F) | 10°C (50°F) | 8°C (46°F) | 8°C (46°F) | 7°C (44°F) | 5°C (41°F) | 6°C (43°F) |
| Precipitation | 0in | 0in | 0in | 0in | 0in | 0in | 0in | 0in |
| Humidity | 84% | 82% | 81% | 79% | 74% | 76% | 79% | 79% |
| Barometric pressure | 1002 hPa | 1002 hPa | 1001 hPa | 1001 hPa | 1000 hPa | 999 hPa | 999 hPa | 999 hPa |
| Cloud cover | 76% | 100% | 20% | 50% | 48% | 34% | 7% | 4% |
| Heat index | 12°C (54°F) | 12°C (53°F) | 12°C (53°F) | 11°C (51°F) | 11°C (52°F) | 11°C (51°F) | 9°C (48°F) | 10°C (50°F) |
| Dew point | 9°C (49°F) | 9°C (48°F) | 8°C (47°F) | 7°C (45°F) | 7°C (44°F) | 6°C (44°F) | 5°C (42°F) | 7°C (44°F) |
| Wind | ||||||||
| Speed | 11km/h (7mph) | 9km/h (6mph) | 14km/h (9mph) | 27km/h (17mph) | 34km/h (21mph) | 35km/h (22mph) | 38km/h (23mph) | 39km/h (24mph) |
| Gusts | 20km/h (12mph) | 16km/h (10mph) | 23km/h (14mph) | 42km/h (26mph) | 34km/h (21mph) | 37km/h (23mph) | 41km/h (26mph) | 54km/h (33mph) |
| Direction | 92° E | 124° ESE | 49° NE | 42° NE | 34° NNE | 25° NNE | 21° NNE | 21° NNE |
| Wind chill | 11°C (52°F) | 11°C (51°F) | 10°C (50°F) | 8°C (46°F) | 8°C (46°F) | 7°C (44°F) | 5°C (41°F) | 6°C (43°F) |
| Waves | ||||||||
| Height | 1.9m (6.2ft) | 1.8m (5.9ft) | 1.7m (5.6ft) | 1.6m (5.3ft) | 1.5m (5.0ft) | 1.4m (4.6ft) | 1.3m (4.4ft) | 1.2m (3.9ft) |
| Direction | 243° WSW | 246° WSW | 243° WSW | 244° WSW | 241° WSW | 237° WSW | 233° SW | 231° SW |
| Period | 9.6 sec. | 9.5 sec. | 9.2 sec. | 9.0 sec. | 8.8 sec. | 8.6 sec. | 8.6 sec. | 8.5 sec. |
| Significant height | 1.2m (3.9ft) | 1.4m (4.6ft) | 1.5m (4.9ft) | 1.4m (4.6ft) | 1.2m (3.9ft) | 1.2m (3.9ft) | 1.0m (3.3ft) | 0.8m (2.6ft) |
| Sea water temperature | ||||||||
| Water temperature | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) | 9°C (47°F) |





