Stykkishólmur Monthly Rainfall & Precipitation
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).
Monthly Rainfall & Rainy Days
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 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.
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 Stykkishólmur's Historical Precipitation: 1976-2026
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.
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.
Stykkishólmur vs World: Rainfall Compared
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:
- 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 Stykkishólmur's weather, including sunshine hours, humidity levels, and temperature data, visit our Stykkishólmur Climate page.
Stykkishólmur Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Stykkishólmur - and find the best time to visit.
Stykkishólmur 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Stykkishólmur climate overview or explore weather in Iceland.
Popular this month
Where to go in August - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Iceland Airwaves Festival
On its way to its 20th edition in 2019 Iceland Airwaves is a festival you need to visit once in your life. Everything from lagoons and bookstores to bars and concert halls is filled with music.
Where to stay in Iceland: Nordic idyll that feels like home
If you are travelling to Iceland for the first time, the Golden Circle will probably make it onto your bucket list. Geysir Hestar is located right in between two spectacular sights of the Golden Circle.
See the northern lights
The northern lights, polar light or Aarora Borealis is a true spectacle of nature! Green, sometimes purple, red and yellow streaks of light colors the dark skies.