Joetsu Weather in September

With daytime temperatures of 26°C (79°F) and nighttime lows of 19°C (66°F), September in Joetsu brings high temperatures during the day. Do keep in mind that September is part of the rainy season, with frequent and often heavy rainfall.

Rainfall in Joetsu in September

Joetsu is in the rainy season in September, with rain on around 20 days and an average of 193 mm (7.6 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.

Temperature in Joetsu in September

Daytime highs in Joetsu in September reach 26°C (79°F), with nights around 19°C (66°F). September is typically considered a summer month. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 19°C (66°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 Joetsu in September

With about 128 hours of sunshine, the area enjoys a nice balance of sun and rainy moments, creating a pleasant environment.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June and October typically offer the best weather for Joetsu.