Temperature
Cold by day, cold at night.
Cold weather is the main limitation.
Cold by day, cold at night.
Rain is frequent. About 14 wet days, fewer than in most months.
Cloudier spells limit sunshine.
Humidity is rarely noticeable in the cool air.
In May, afternoons feel about 35° and nights feel near 32°.
Mostly cloudy skies this month.
Breezy May days can feel brisker in open spots.
May late afternoons are around 46°F, and early evening stays near 45°F.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 38 | 32 | 4.8 | 19 | 0.9 | 78 | 44 |
| Feb | 37 | 31 | 4.7 | 17 | 1.8 | 77 | 43 |
| Mar | 38 | 32 | 4.5 | 18 | 3.6 | 76 | 43 |
| Apr | 42 | 36 | 3.7 | 16 | 4.7 | 77 | 43 |
| May | 46 | 40 | 3.3 | 14 | 6.2 | 77 | 45 |
| Jun | 51 | 46 | 2.7 | 13 | 5.4 | 80 | 48 |
| Jul | 54 | 49 | 3.0 | 13 | 5.5 | 83 | 51 |
| Aug | 54 | 49 | 3.8 | 14 | 5.0 | 83 | 53 |
| Sep | 50 | 45 | 5.5 | 18 | 4.2 | 81 | 50 |
| Oct | 44 | 39 | 4.9 | 16 | 2.7 | 80 | 47 |
| Nov | 40 | 35 | 4.6 | 17 | 1.3 | 78 | 46 |
| Dec | 38 | 33 | 4.8 | 18 | 0.4 | 79 | 44 |
Similar climates
Want a side-by-side climate view? Compare Reykjavík with Tromso.
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: Jun 1, 2026
Data & methodology