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This page shows both the average monthly rainfall and the number of rainy days in Reykjahlíð, North Iceland, Iceland. Long-term data from 1990 to 2020 was used to calculate these averages. Let's now guide you through the details for a complete overview.
Reykjahlíð experiences significant rain/snowfall throughout the year, averaging 1018 mm (40 in) of precipitation annually.
The amount of precipitation varies moderately throughout the year. The wettest month, October, sees around 113 mm (4.4 in) of snow/rainfall, perfect for those who enjoy a bit of snow/rain now and then. The driest month, June, still receives a respectable 64 mm (2.5 in) of rainfall.
October, the wettest month, has a maximum daytime temperature of 5°C (41°F). The city receives 50 hours of sunshine in this period. During the driest month June you can expect a temperature of 13°C (55°F). For more detailed insights into the city's temperatures, visit our Reykjahlíð Temperature page.
Average daily rainfall for each day of the month based on long-term records. 50-year average (1976-2025)
Browse day-by-day precipitation records for Reykjahlíð spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
The map below shows the annual precipitation across Iceland. You can also select the different months in case you are interested in a specific month.
Reykjahlíð's average annual precipitation is 1018 mm (40 in). Let's compare this to some popular worldwide tourist destinations:
Chicago, USA, sees an annual precipitation of 1062 mm (42 in), with rain and snow contributing to its humid climate.
Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.
In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.
Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.
Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.
Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.
The proximity of a location to a large body of water can significantly affect its rainfall patterns:
For more detailed information about Reykjahlíð's weather, including sunshine hours, humidity levels, and temperature data, visit our Reykjahlíð Climate page.
Pick a month to see the average temperature, rainfall and sunshine in Reykjahlíð - and find the best time to visit.
Temperature Rainfall Sunshine Humidity
See the full Reykjahlíð climate overview or explore weather in Iceland.
Where to go in October - average daytime high across popular destinations.
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