Climate almanac
Uonuma
Niigata, Japan · 37.24°, 138.96°
What is the climate like in Uonuma?
The best time to visit Uonuma is typically August, the year's most comfortable month (6.0/10). Uonuma is warmest in August, when daily highs average 85°F (29°C), and coolest in January, when lows fall to about 26°F (-3°C). The wettest month is typically December and the driest is May; the year sees roughly 103 in (2608 mm) of precipitation.
- Best time to visitAugust — the year's comfort peak (6.0/10)
- Warmest monthAugust — average high 85°F (29°C)
- Coolest monthJanuary — average low 26°F (-3°C)
- Wettest monthDecember (12 in (302 mm))
- Driest monthMay (6.2 in (157 mm))
- Annual precipitation103 in (2608 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromTakada, 65 km away (1951-2026)