Turku Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Turku. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s break down all the details for a clearer picture.

On average, Turku receives a reasonable amount of rain/snowfall, with an annual precipitation of 722 mm.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

The seasons in Turku, bring significant changes in precipitation. The wettest month, July, receives moderate rainfall, with an average of 85 mm of precipitation.

This rainfall is distributed across 14 rainy days. In contrast, the driest month, April, experiences much less rainfall, totaling 38 mm over 13 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

July, the city’s wettest month, has a maximum daytime temperature of 23°C and receives 288 hours of sunshine. During the driest month April you can expect a temperature of 10°C. For more detailed insights into the city’s temperatures, visit our Turku Temperature page.

Annual Precipitation in Finland

The map below shows the annual precipitation across Finland. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Turku’s average annual precipitation is 722 mm. Let’s compare this to some popular worldwide tourist destinations:

In Toronto, Canada, annual precipitation averages [964 mm], with snowy winters and rainy summers.

In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.

In Tokyo, Japan, the average annual precipitation is 1528 mm, with significant summer rains due to typhoon season.

Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm of annual rainfall, with the heaviest precipitation occurring during September and October.

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.

Global Precipitation Patterns

Tropical Rainforests: In tropical regions, rainfall is generally abundant year-round. Areas near the equator, like the Amazon rainforest, can receive up to 3000 mm of rain annually.

Desert Regions: Deserts such as the Sahara and Arabian deserts typically see less than 250 mm of rainfall annually. Rainfall tends to be infrequent, but when it does occur, it is often intense.

Temperate Zones: In temperate regions, precipitation tends to be more evenly distributed, though areas closer to the ocean may see more rain in the winter months, and areas further inland experience drier summers.

Polar Regions: Precipitation in polar regions, like Antarctica, is extremely low, often falling as snow. Average annual precipitation in Antarctica is less than 200 mm, with some areas receiving as little as 50 mm annually.

For more detailed information about Turku’s weather, including sunshine hours, humidity levels, and temperature data, visit our Turku Climate page.