Tomakomai

What is the climate like in Tomakomai?

The best time to visit Tomakomai is typically September, the year's most comfortable month (6.1/10). Tomakomai 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 January; the year sees roughly 52 in (1327 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 (228 mm))
• Driest monthJanuary (2.2 in (56 mm))
• Annual precipitation52 in (1327 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromTomakomai, 5 km away (1951-2026)