Shiojiri

What is the climate like in Shiojiri?

The best time to visit Shiojiri is typically August, the year's most comfortable month (6.2/10). Shiojiri is warmest in August, when daily highs average 82°F (28°C), and coolest in January, when lows fall to about 23°F (-5°C). The wettest month is typically July and the driest is January; the year sees roughly 67 in (1701 mm) of precipitation.

• Best time to visitAugust — the year's comfort peak (6.2/10)
• Warmest monthAugust — average high 82°F (28°C)
• Coolest monthJanuary — average low 23°F (-5°C)
• Wettest monthJuly (9.0 in (229 mm))
• Driest monthJanuary (3.3 in (83 mm))
• Annual precipitation67 in (1701 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromSuwa, 15 km away (1951-2026)