Ruka Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Ruka, Oulu (province), Finland. Long-term data from 1990 to 2020 was used to calculate these averages. Let's explore the details to provide you with a complete overview.
Generally, Ruka receives mid-range precipitation levels, with 691 mm (27 in) annually. The distribution varies significantly throughout the year, with a distinct dry season during certain months, as shown in our charts below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Significant seasonal changes in precipitation occur throughout the year. During the wettest month, July receives substantial rainfall, averaging 92 mm (3.6 in) of precipitation, recorded across 17 rainy days.
In contrast, the driest month, March brings less snowfall, with 37 mm (1.5 in) over 18 snowy days.
July, the wettest month, has a maximum daytime temperature of 20°C (68°F). During the driest month March you can expect a temperature of -1°C (30°F). For more detailed insights into the city's temperatures, visit our Ruka Temperature page.
Explore Ruka's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Ruka spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Finland: City Comparison
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.
heavy rainfall
high
moderate
low
almost none
Ruka vs World: Rainfall Compared
Ruka's average annual precipitation is 691 mm (27 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 Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.
Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.
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 Ruka's weather, including sunshine hours, humidity levels, and temperature data, visit our Ruka Climate page.
