Climate almanac
Kosai
Shizuoka, Japan · 34.70°, 137.52°
What is the weather like in Kosai in September?
In September, Kosai is typically 85°F (29°C) during the day and 73°F (23°C) at night. The month brings about 9.1 in (231 mm) of precipitation in total.
- Average high85°F (29°C)
- Average low73°F (23°C)
- Precipitation9.1 in (231 mm)
- Clear or mostly clear days7
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)