The weather in Kumamoto in July is very hot. The average temperatures are between 24°C and 28°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of July in Kumamoto. 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 Kumamoto in July 2025.
If you’re planning to visit Kumamoto in the near future, we highly recommend that you review the 14 day weather forecast for Kumamoto before you arrive.