Kawasaki Rainfall & Precipitation: Monthly Averages and Year-Round Insights
This page shows both the average monthly rainfall and the number of rainy days in Kawasaki, Kanagawa, Japan. This average is based on long-term data collected between 1990 and 2020. Let's now guide you through the details for a complete overview.
Kawasaki experiences significant rainfall throughout the year, averaging 1560 mm of precipitation annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm)
Significant seasonal changes in precipitation occur throughout the year. During the wet season, October receives substantial rainfall, averaging 211 mm of precipitation, recorded across 17 rainy days.
In contrast, the drier season, December brings less rainfall, with 66 mm over 10 rainy days.October, the wettest month, has a maximum daytime temperature of 22°C. The city receives 142 hours of sunshine in this period. During the driest month December you can expect a temperature of 13°C. For more detailed insights into the city’s temperatures, visit our Kawasaki Temperature page.
Annual Precipitation in Japan
The map below shows the annual precipitation across Japan. You can also select the different months in case you are interested in a specific month.





Amsterdam Precipitation Compared World Wide
Kawasaki’s average annual precipitation is 1560 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 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.
Singapore, situated near the equator, gets 2581 mm of rainfall annually, with no distinct dry season and consistent monthly precipitation.
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 Warming and Precipitation
Climate change is affecting precipitation patterns worldwide, including Kawasaki:
- 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.
For more detailed information about Kawasaki’s weather, including sunshine hours, humidity levels, and temperature data, visit our Kawasaki Climate page.