Global CityIntelligence

Climate

Climate in Reykjavik

Reykjavik, Iceland has a subarctic climate. The annual average temperature is about -3.6°C and the city receives roughly 901 mm of precipitation across 114 rainy days a year, with around 1141 hours of sunshine. The warmest month is Jul (highs near 15.8°C) and the coldest is Jan (lows near -22.9°C). These are deterministic, latitude- and region-based planning estimates — not a forecast or measured station data; check current conditions with an official meteorological service before travel.

Climate zone
Subarctic
Comfort score
35/100

Climate overview

Reykjavik, Iceland has a subarctic climate. The annual average temperature is about -3.6°C and the city receives roughly 901 mm of precipitation across 114 rainy days a year, with around 1141 hours of sunshine. The warmest month is Jul (highs near 15.8°C) and the coldest is Jan (lows near -22.9°C). These are deterministic, latitude- and region-based planning estimates — not a forecast or measured station data; check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Climate zone

Köppen-style classification derived deterministically from latitude and regional precipitation regime.

Climate zone

Reykjavik is classified as Subarctic. This reflects its annual temperature range and the seasonal pattern of its rainfall.

Average temperatures

Annual averages and seasonal extremes.

Average temperatures

  • Annual average-3.6°C
  • Warmest monthJul (15.8°C)
  • Coldest monthJan (-22.9°C)
  • Comfort score35/100

Rainfall overview

Annual precipitation and how it is distributed across the year.

Rainfall overview

Reykjavik receives about 901 mm of precipitation a year over roughly 114 rainy days. The wettest month is Aug and the driest is Feb.

Sunshine overview

Estimated annual sunshine and its seasonal pattern.

Sunshine overview

Reykjavik sees an estimated 1141 hours of sunshine a year, concentrated in the warmer months around Jul.

Monthly climate table

Month-by-month estimates of temperature, rainfall, rainy days, and sunshine.

Monthly climate table

Reykjavik monthly climate table
MonthHighLowRainRainy DaysSunshine
Jan-13.9°C-22.9°C54 mm778 h
Feb-11.9°C-20.9°C50 mm689 h
Mar-6.5°C-15.5°C50 mm6105 h
Apr0.9°C-8.1°C54 mm7120 h
May8.4°C-0.6°C70 mm9122 h
Jun13.8°C4.8°C93 mm12104 h
Jul15.8°C6.8°C112 mm1486 h
Aug13.8°C4.8°C116 mm1483 h
Sep8.4°C-0.6°C93 mm1294 h
Oct0.9°C-8.1°C77 mm1096 h
Nov-6.5°C-15.5°C70 mm986 h
Dec-11.9°C-20.9°C62 mm878 h

Best months to visit

Months with the mildest temperatures and lower rainfall, by the deterministic comfort heuristic. Not a tourism ranking.

Best months to visit

By temperature and rainfall, the most comfortable months in Reykjavik are Jul, Jun, Aug. Conditions vary year to year — verify with a current forecast before booking.

Seasonal summary

Average conditions by season.

Seasonal summary

  • Winter

    -13°C / -22°C

    166 mm rain

  • Spring

    1°C / -8°C

    174 mm rain

  • Summer

    14°C / 5°C

    321 mm rain

  • Autumn

    1°C / -8°C

    240 mm rain

Climate comfort score

A 0–100 composite of temperature balance, rainfall, sunshine, seasonality, and winter/summer extremes; higher means more comfortable. Used consistently across the platform.

Climate comfort score

Reykjavik has a climate comfort score of 35/100, a challenging year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.

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