Temperature
Cold by day, freezing at night.
Borgarnes is usually most comfortable from June to August. Typical daytime highs range from 36–58°F across the year. Rain is frequent in many months.

Cold by day, freezing at night.
Some snow or mixed precipitation is possible this month.
Wintry precipitation and cloud limit sunshine.
Humidity is rarely noticeable in the cool air.
In November, afternoons feel about 28° and nights feel near 26°.
Mostly cloudy skies this month.
Breezy November days can feel brisker in open spots.
November stays around 36°F through the day and night.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 36 | 28 | 5.1 | 17 | 1.5 | 82 |
| Feb | 36 | 28 | 5.0 | 17 | 4.0 | 80 |
| Mar | 38 | 29 | 4.6 | 16 | 6.8 | 79 |
| Apr | 43 | 34 | 3.4 | 14 | 9.7 | 77 |
| May | 49 | 40 | 3.2 | 14 | 11.7 | 75 |
| Jun | 55 | 47 | 2.6 | 12 | 12.3 | 77 |
| Jul | 58 | 50 | 3.0 | 13 | 11.2 | 81 |
| Aug | 57 | 49 | 3.8 | 14 | 9.3 | 82 |
| Sep | 52 | 45 | 5.2 | 17 | 6.9 | 82 |
| Oct | 45 | 38 | 4.5 | 15 | 4.9 | 82 |
| Nov | 39 | 32 | 4.4 | 15 | 2.2 | 81 |
| Dec | 37 | 28 | 5.0 | 16 | 0.6 | 81 |
Similar climates
Want a side-by-side climate view? Compare Borgarnes 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