Tomohon Rainfall & Precipitation: Monthly Averages and Year-Round Insights
This page shows both the average monthly rainfall and the number of rainy days in Tomohon, North Sulawesi, Indonesia. These averages rely on historical data collected over 30 years, from 1990 to 2020. Now, let’s explore all the details to give you a full picture.
Tomohon has a relatively rainy climate with high precipitation levels, averaging 3203 mm of rainfall annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm)
Tomohon experiences moderate seasonal variation in rainfall, with monthly averages ranging from 327 mm in June, the wettest month, and 154 mm in August, the driest month.
June, the wettest month, has a maximum daytime temperature of 29°C. The city receives 147 hours of sunshine in this period. During the driest month August you can expect a temperature of 30°C. For more detailed insights into the city’s temperatures, visit our Tomohon Temperature page.
Annual Precipitation in Indonesia
The map below shows the annual precipitation across Indonesia. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Amsterdam Precipitation Compared World Wide
Tomohon’s average annual precipitation is 3203 mm. Let’s compare this to some popular worldwide tourist destinations:
Seville, Spain, experiences 541 mm of rainfall annually, with wet winters and dry summers typical of southern Spain.
In Seoul, South Korea, the average annual precipitation is 1237 mm, with most rain falling during the summer monsoon season.
Adelaide, Australia, enjoys 511 mm of annual precipitation, with dry summers and wet winters.
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.
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 Tomohon’s weather, including sunshine hours, humidity levels, and temperature data, visit our Tomohon Climate page.
Current rainfall in Tomohon
