Siglufjörður Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Siglufjörður, North Iceland, Iceland. These averages rely on historical data collected over 30 years, from 1990 to 2020. Now, let's explore all the details to give you a full picture.
Siglufjörður is known for its substantial rain/snowfall, with annual precipitation reaching 1313 mm (52 in).
Monthly Rainfall & Rainy Days
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Siglufjörður can be quite wet during October, receiving approximately 151 mm (5.9 in) of precipitation over 18 rainy days.
In contrast June, experiences much drier conditions, with 60 mm (2.4 in) of rainfall, spread across 13 rainy days.
October, the wettest month, has a maximum daytime temperature of 6°C (43°F). The city receives 50 hours of sunshine in this period. During the driest month June you can expect a temperature of 9°C (48°F). For more detailed insights into the city's temperatures, visit our Siglufjörður Temperature page.
Daily Historical Precipitation
Average daily rainfall for each day of the month based on long-term records. 50-year average (1976-2025)
Average precipitation in August
Explore Siglufjörður's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Siglufjörður spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Iceland: City Comparison
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.
Siglufjörður vs World: Rainfall Compared
Siglufjörður's average annual precipitation is 1313 mm (52 in). Let's compare this to some popular worldwide tourist destinations:
New York City, USA, receives 1276 mm (50 in) of rainfall annually, with precipitation evenly distributed throughout the year.
Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
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.
Precipitation has a very strong role in determining the local climate and ecosystem:
- Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
- Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.
- "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
- The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm (15 inches) wide and 20 cm (7.9 inches) thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
- The greatest snowfall recorded was on Mt. Rainier, Washington State, USA, over 31.5 meters (103 feet) fell during the winter of 1972.
For more detailed information about Siglufjörður's weather, including sunshine hours, humidity levels, and temperature data, visit our Siglufjörður Climate page.
Siglufjörður Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Siglufjörður - and find the best time to visit.
Siglufjörður 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full Siglufjörður climate overview or explore weather in Iceland.
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