The weather in Shirakawa in September is hot. The average temperatures are between 21°C and 26°C.
You can expect rain for roughly half of the month of September in Shirakawa. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Shirakawa in September 2025.
If you’re planning to visit Shirakawa in the near future, we highly recommend that you review the 14 day weather forecast for Shirakawa before you arrive.
Temperatures
26° / 21°
Rainy Days
11
Snowy Days
0
Dry Days
19
Rainfall
165
mm
Sun Hours
1.6
Hrs
