Oskarshamn Rainfall & Precipitation: Monthly Averages and Year-Round Insights
This page shows both the average monthly rainfall and the number of rainy days in Oskarshamn, Kalmar county, Sweden. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Let's now guide you through the details for a complete overview.
Generally, Oskarshamn has a moderate amount of precipitation, averaging 616 mm of rain/snowfall annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm)
Significant seasonal changes in precipitation occur throughout the year. During the wet season, July receives substantial rainfall, averaging 78 mm of precipitation, recorded across 12 rainy days.
In contrast, the drier season, March brings less snow/rainfall, with 33 mm over 13 snowy/rainy days.July, the wettest month, has a maximum daytime temperature of 24°C. The city receives 281 hours of sunshine in this period. During the driest month March you can expect a temperature of 7°C. For more detailed insights into the city’s temperatures, visit our Oskarshamn Temperature page.
Annual Precipitation in Sweden
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.





Amsterdam Precipitation Compared World Wide
Oskarshamn’s average annual precipitation is 616 mm. Let’s compare this to some popular worldwide tourist destinations:
In Barcelona, Spain, the average annual precipitation is 644 mm, evenly distributed across the year with no extreme wet or dry seasons.
Beijing, China, receives 560 mm of annual precipitation, concentrated in the summer months.
Adelaide, Australia, enjoys 511 mm of annual precipitation, with dry summers and wet winters.
Singapore, situated near the equator, gets 2581 mm of rainfall annually, with no distinct dry season and consistent monthly precipitation.
How is Precipitation Measured?
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.
Interesting weather facts
- "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 wide and 20 cm 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 fell during the winter of 1972.
For more detailed information about Oskarshamn’s weather, including sunshine hours, humidity levels, and temperature data, visit our Oskarshamn Climate page.