Kusatsu Weather in September

In Kusatsu, September brings high daytime temperatures around 24°C (75°F), with nights cooling to 15°C (59°F). This month falls within the rainy season, so expect frequent rainfall.

Rainfall in Kusatsu in September

As part of the rainy season, Kusatsu sees around 21 days of rain in September, with an average of 195 mm (7.7 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.

Temperature in Kusatsu in September

Daytime temperatures in Kusatsu reach 24°C (75°F) in September, dropping to 15°C (59°F) at night. This month falls in the summer season. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 15°C (59°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Kusatsu in September

The area experiences a moderate amount of sunshine, with approximately 142 hours of sunlight expected. Even though this month is part of the rainy season, you could still see the sun every now and then.

Should you favor a climate that's both dry and comfortably warm, May typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.