Temperature
Cold by day, cold at night.
Not the best time: Cold weather is the main limitation.
Cold by day, cold at night.
Rain is frequent. About 16 wet days this month.
Sunshine is limited, with cloud often dominating.
Humidity is rarely noticeable in the cool air.
In October, afternoons feel about 32° and nights feel near 30°.
Mostly cloudy skies this month.
Breezy October days can feel brisker in open spots.
October stays around 42°F through the day and night.
| 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