Climate almanac
Shiraoi
Hokkaido, Japan · 42.55°, 141.35°
What is the climate like in Shiraoi?
The best time to visit Shiraoi is typically September, the year's most comfortable month (6.1/10). Shiraoi is warmest in August, when daily highs average 74°F (23°C), and coolest in January, when lows fall to about 21°F (-6°C). The wettest month is typically August and the driest is February; the year sees roughly 53 in (1345 mm) of precipitation.
- Best time to visitSeptember — the year's comfort peak (6.1/10)
- Warmest monthAugust — average high 74°F (23°C)
- Coolest monthJanuary — average low 21°F (-6°C)
- Wettest monthAugust (9.0 in (229 mm))
- Driest monthFebruary (2.2 in (56 mm))
- Annual precipitation53 in (1345 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromTomakomai, 18 km away (1951-2026)