Tallinn Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Tallinn, Harjumaa, Estonia. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Let's now guide you through the details for a complete overview.
Generally, Tallinn has a moderate amount of precipitation, averaging 724 mm (29 in) of rain/snowfall annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Tallinn offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between August (85 mm (3.3 in)) and March (39 mm (1.5 in)) is not too significant, making the climate enjoyable for visitors and residents alike.
August, the wettest month, has a maximum daytime temperature of 22°C (72°F). The city receives 256 hours of sunshine in this period. During the driest month March you can expect a temperature of 4°C (39°F). For more detailed insights into the city's temperatures, visit our Tallinn Temperature page.
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Explore Tallinn's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Tallinn spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Estonia: City Comparison
The map below shows the annual precipitation across Estonia. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Tallinn vs World: Rainfall Compared
Tallinn's average annual precipitation is 724 mm (29 in). Let's compare this to some popular worldwide tourist destinations:
The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.
In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.
In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.
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.
- The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
- Approximately 70% of lightning bolts strike land rather than oceans.
- A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.
For more detailed information about Tallinn's weather, including sunshine hours, humidity levels, and temperature data, visit our Tallinn Climate page.
