Reykjavik Weather in January
In January, Reykjavik averages a high of 2°C (36°F) and a low of -2°C (28°F), from 56 years of daily records (1971–2026).
2°C
Average high
36°F
-2°C
Average low
28°F
11°C
Record high
51°F · January 5, 2002
-20°C
Record low
-3°F · January 30, 1971
What January Is Like in Reykjavik
- The coldest January reading, -20°C (-3°F) on January 30, 1971, has not been matched in 55 years.
- January in Reykjavik has become 1.5°C (2.6°F) warmer on average: the 2012–2026 average against 1970–1989.
- January is Reykjavik's coldest month of the year.
- On average, 21 nights in January drop below freezing.
At least 1 mm of rain falls on 46% of January days, and the month averages 82 mm in total.
Warmest: 1972 (5.1°C)Latest: 2026 (2.7°C)10-year averageLong-run average (2.4°C)
Look Up a Day in January
See the weather in Reykjavik on any January date, year by year.
Source: NOAA GHCN-Daily, Reykjavik (1971–2026); Reykjavik (2006–2025). Averages cover 1971–2026. How we compute this