Asahikawa Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Asahikawa, Hokkaido, Japan. 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.
Asahikawa is known for its substantial rain/snowfall, with annual precipitation reaching 1412 mm (56 in).
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, August receives substantial rainfall, averaging 177 mm (7 in) of precipitation, recorded across 18 rainy days.
In contrast, the driest month, February brings less snowfall, with 81 mm (3.2 in) over 26 snowy days.
August, the wettest month, has a maximum daytime temperature of 25°C (77°F). The city receives 142 hours of sunshine in this period. During the driest month February you can expect a temperature of -2°C (28°F). For more detailed insights into the city's temperatures, visit our Asahikawa Temperature page.
Annual Rainfall in Japan: City Comparison
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.
heavy rainfall
high
moderate
low
almost none
Asahikawa vs World: Rainfall Compared
Asahikawa's average annual precipitation is 1412 mm (56 in). Let's compare this to some popular worldwide tourist destinations:
In Lisbon, Portugal, the average annual precipitation is 774 mm (30 in), characterized by wet winters and dry summers typical of the Mediterranean climate.
In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.
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.
Climate change is affecting precipitation patterns worldwide, including Asahikawa:
- 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 Asahikawa's weather, including sunshine hours, humidity levels, and temperature data, visit our Asahikawa Climate page.
