Koshi

What is the climate like in Koshi?

The best time to visit Koshi is typically August, the year's most comfortable month (6.1/10). Koshi is warmest in August, when daily highs average 83°F (28°C), and coolest in February, when lows fall to about 36°F (2°C). The wettest month is typically December and the driest is May; the year sees roughly 102 in (2600 mm) of precipitation.

• Best time to visitAugust — the year's comfort peak (6.1/10)
• Warmest monthAugust — average high 83°F (28°C)
• Coolest monthFebruary — average low 36°F (2°C)
• Wettest monthDecember (12 in (296 mm))
• Driest monthMay (6.1 in (155 mm))
• Annual precipitation102 in (2600 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromToyama, 39 km away (1951-2026)