Hachioji Weather in September

September in Hachioji brings high temperatures, with highs of 26°C (79°F) and nights dropping to 19°C (66°F). It's the rainiest month of the year, so come prepared with waterproof gear.

Rainfall in Hachioji in September

As part of the rainy season, Hachioji sees around 19 days of rain in September, with an average of 255 mm (10 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.

Temperature in Hachioji in September

September in Hachioji brings high temperatures, with highs of 26°C (79°F) and nights around 19°C (66°F). Summer occurs in September. This kind of day-to-night contrast is typical for this time of year. Nights cool down to 19°C (66°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Hachioji in September

The month brings about 137 hours of sunlight, offering a comfortable mix of sun and rainy moments.

If you prefer enjoying temperate temperatures and rain-free days, May typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.