Historical Weather in Reykjavik, Iceland
See 55+ years of weather history for any date in Reykjavik going back to 1970.
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Monthly Climate Averages
Historical temperature and precipitation averages for Reykjavik, Iceland, based on 55+ years of weather data.
Temperatures shown in Celsius with Fahrenheit in parentheses. Rainfall in millimetres, snowfall in centimetres.
Reykjavik Weather by Month
The coldest January reading, -20°C (-3°F) on January 30, 1971, has not been matched in 55 years.
6 of the 10 warmest Februarys on record in Reykjavik have come since 2012.
March in Reykjavik has become 1.0°C (1.7°F) warmer on average: the 2012–2026 average against 1970–1989.
5 of the 10 warmest Aprils on record in Reykjavik have come since 2012.
Reykjavik's hottest May day on record is a recent one: 20°C (69°F) on May 18, 2025.
June in Reykjavik has become 1.0°C (1.8°F) warmer on average: the 2012–2026 average against 1970–1989.
The July heat record, 24°C (76°F) on July 9, 1976, has stood for 50 years.
5 of the 10 warmest Augusts on record in Reykjavik have come since 2012.
The September heat record, 18°C (65°F) on September 11, 1971, has stood for 55 years.
Reykjavik set its coldest October reading on record recently: -9°C (16°F) on October 30, 2025.
November in Reykjavik has become 1.8°C (3.2°F) warmer on average: the 2011–2025 average against 1970–1989.
December 2025 was the 3rd warmest December in 55 years of records, 3.6°C (6.5°F) above the long-run average.
Source: NOAA GHCN-Daily, Reykjavik (1971–2026); Reykjavik (2006–2025). Records through 2026.