Kusatsu

What is the climate like in Kusatsu?

The best time to visit Kusatsu is typically June, the year's most comfortable month (6.0/10). Kusatsu is warmest in August, when daily highs average 82°F (28°C), and coolest in January, when lows fall to about 24°F (-5°C). The wettest month is typically July and the driest is November; the year sees roughly 64 in (1623 mm) of precipitation.

• Best time to visitJune — the year's comfort peak (6.0/10)
• Warmest monthAugust — average high 82°F (28°C)
• Coolest monthJanuary — average low 24°F (-5°C)
• Wettest monthJuly (9.6 in (243 mm))
• Driest monthNovember (3.0 in (76 mm))
• Annual precipitation64 in (1623 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromKaruizawa, 30 km away (1965-2026)