Onsala Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Onsala, Halland, Sweden. 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.
Generally, Onsala experiences moderate precipitation patterns, averaging 967 mm (38 in) yearly.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Onsala experiences moderate seasonal variation in rainfall, with monthly averages ranging from 109 mm (4.3 in) in August, the wettest month, and 53 mm (2.1 in) in March, the driest month.
August, the wettest month, has a maximum daytime temperature of 21°C (70°F). The city receives 198 hours of sunshine in this period. During the driest month March you can expect a temperature of 7°C (45°F). For more detailed insights into the city's temperatures, visit our Onsala Temperature page.
Annual Rainfall in Sweden: City Comparison
The map below shows the annual precipitation across Sweden. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Onsala vs World: Rainfall Compared
Onsala's average annual precipitation is 967 mm (38 in). Let's compare this to some popular worldwide tourist destinations:
Seville, Spain, experiences 541 mm (21 in) of rainfall annually, with wet winters and dry summers typical of southern Spain.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.
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:
- Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
- Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.
- "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 Onsala's weather, including sunshine hours, humidity levels, and temperature data, visit our Onsala Climate page.
