Keflavík Climate: Weather by Month and Best Time to Visit
Best months for Keflavík: July, June, August.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 3°C | 0°C | 125 mm | 19 | – | – | 3.2 |
| February | 3°C | 0°C | 124 mm | 18 | – | – | 3.3 |
| March | 4°C | 0°C | 113 mm | 17 | – | – | 3.5 |
| April | 6°C | 2°C | 91 mm | 15 | – | – | 4.3 |
| May | 8°C | 5°C | 79 mm | 14 | – | – | 5.0 |
| June | 11°C | 8°C | 67 mm | 13 | – | – | 5.5 |
| July | 12°C | 10°C | 74 mm | 13 | – | – | 5.9 |
| August | 12°C | 9°C | 97 mm | 14 | – | – | 5.5 |
| September | 10°C | 7°C | 134 mm | 17 | – | – | 4.6 |
| October | 7°C | 4°C | 119 mm | 15 | – | – | 4.5 |
| November | 5°C | 2°C | 124 mm | 17 | – | – | 3.8 |
| December | 4°C | 1°C | 128 mm | 18 | – | – | 3.3 |