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This page shows both the average monthly rainfall and the number of rainy days in Stykkishólmur, West Iceland, Iceland. Long-term data from 1990 to 2020 was used to calculate these averages. Now, let's break down all the details for a clearer picture.
Stykkishólmur is known for its substantial rain/snowfall, with annual precipitation reaching 1227 mm (48 in).
Stykkishólmur offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between September (135 mm (5.3 in)) and June (63 mm (2.5 in)) is not too significant, making the climate enjoyable for visitors and residents alike.
September, the wettest month, has a maximum daytime temperature of 11°C (52°F). The city receives 106 hours of sunshine in this period. During the driest month June you can expect a temperature of 12°C (54°F). For more detailed insights into the city's temperatures, visit our Stykkishólmur 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 Stykkishólmur 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.
Stykkishólmur's average annual precipitation is 1227 mm (48 in). Let's compare this to some popular worldwide tourist destinations:
In Barcelona, Spain, the average annual precipitation is 620 mm (24 in), evenly distributed across the year with no extreme wet or dry seasons.
In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.
In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.
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.
Precipitation has a very strong role in determining the local climate and ecosystem:
For more detailed information about Stykkishólmur's weather, including sunshine hours, humidity levels, and temperature data, visit our Stykkishólmur Climate page.
Pick a month to see the average temperature, rainfall and sunshine in Stykkishólmur - and find the best time to visit.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Stykkishólmur climate overview or explore weather in Iceland.
Where to go in September - average daytime high across popular destinations.
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