Kärdla Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Kärdla, Hiiumaa, Estonia. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Now, let's explore all the details to give you a full picture.
Generally, Kärdla experiences moderate precipitation patterns, averaging 669 mm (26 in) yearly. However, this average masks significant seasonal variation, including a distinct dry season during certain months that are clearly visible in our monthly breakdown below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
While rainfall varies throughout the year, each season offers its own charm. October brings wetter days averaging 75 mm (3 in) of precipitation, spread over 16 rainy days.
In contrast, May experiences a drier climate, with about 35 mm (1.4 in) of rainfall spread across 10 rainy days.
October, the wettest month, has a maximum daytime temperature of 11°C (52°F). During the driest month May you can expect a temperature of 13°C (55°F). For more detailed insights into the city's temperatures, visit our Kärdla 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 Kärdla's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Kärdla 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
Kärdla vs World: Rainfall Compared
Kärdla's average annual precipitation is 669 mm (26 in). Let's compare this to some popular worldwide tourist destinations:
In Barcelona, Spain, the average annual precipitation is 644 mm (25 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.
Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.
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.
- 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 Kärdla's weather, including sunshine hours, humidity levels, and temperature data, visit our Kärdla Climate page.
