Tomakomai weather
At 3:45 AM local time it was clear and 6°C (42°F). Mostly light, on-and-off rain; heavier around 2 AM (2.4 mm total). Best months for weather: Jun–Oct. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Tomakomai, Hokkaido, Japan.
Current conditions
- Clouds
- 18%
- Chance of rain
- 2%
- Rain
- 0.0 mm/h
Hourly Forecast
Mostly light, on-and-off rain; heavier around 2 AM (2.4 mm total)
Daily Forecast
Best Time to Visit
Peak season Jun–OctOff season Nov–Apr
About Tomakomai weather
Is it raining in Tomakomai right now?
No. It’s clear and 6° right now. Mostly light, on-and-off rain; heavier around 2 AM (2.4 mm total).
What’s the weather like in Tomakomai this week?
Over the next 7 days, expect highs of 6–16° and lows of -1–4°. Rain is likely on 5 of 7 days (Monday, Tuesday, Wednesday, Thursday, Friday). The driest day looks like Sunday.
Has it been raining in Tomakomai lately?
In the past 7 days, Tomakomai had 3 rainy days and 14.6 mm of rain in total.
What should I pack for Tomakomai?
For the coming week, bring an umbrella or rain jacket and a warm winter coat.
Tomakomai weather by month
When is the best time to visit Tomakomai?
Based on weather alone, the best time to visit Tomakomai is Jun–Oct, according to NASA's 2001–2025 climate averages. Nov–Apr tends to be the least pleasant. Average highs run from -1°C (31°F) in January to 23°C (73°F) in August.
What is the rainiest month in Tomakomai?
August is the wettest month, with about 172 mm (6.8 in) of rain on average. February is the driest, with about 58 mm (2.3 in).
What is the hottest month in Tomakomai?
August is the warmest, with average highs of 23°C (73°F) and lows of 18°C (65°F). January is the coolest, with highs of -1°C (31°F) and lows of -5°C (22°F).
Does Tomakomai have a rainy season?
Yes. Aug is the rainy season (150 mm or more a month), while Feb is usually dry (under 60 mm).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months