Temperature
Cold by day, cold at night.
Surtsey is usually most comfortable in July and August. Typical daytime highs range from 41–53°F across the year. Rain is frequent in many months.

Cold by day, cold at night.
It rains on most days. About 20 wet days, more than in most months.
Sunshine is limited, with cloud often dominating.
Humidity is rarely noticeable in the cool air.
In November, afternoons feel about 26° and nights feel near 25°.
Mostly cloudy skies this month.
Wind is more noticeable in November; open areas can feel blustery.
November stays around 41°F through the day and night.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 41 | 36 | 6.7 | 22 | 2.0 | 74 |
| Feb | 41 | 36 | 6.7 | 21 | 4.3 | 74 |
| Mar | 41 | 36 | 6.1 | 21 | 6.9 | 74 |
| Apr | 43 | 39 | 4.5 | 17 | 9.6 | 75 |
| May | 45 | 42 | 3.6 | 14 | 12.0 | 78 |
| Jun | 49 | 47 | 3.0 | 12 | 12.4 | 83 |
| Jul | 52 | 50 | 3.5 | 13 | 11.4 | 85 |
| Aug | 53 | 50 | 4.6 | 15 | 9.7 | 83 |
| Sep | 50 | 47 | 6.6 | 19 | 7.3 | 80 |
| Oct | 46 | 42 | 6.6 | 19 | 5.3 | 77 |
| Nov | 43 | 39 | 6.8 | 20 | 2.8 | 76 |
| Dec | 41 | 37 | 6.9 | 21 | 1.2 | 74 |
Similar climates
Want a side-by-side climate view? Compare Surtsey with Amsterdam.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 27, 2026
Data & methodology