Best Time to Visit Tomakomai
Best time: Jun, Jul.
Aug is warmest (23.8°C high); Aug is rainiest (184 mm).
Tomakomai weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | -0.6 | -10.4 | 51 | 2.9 |
| Feb | 0.1 | -9.5 | 45 | 4.2 |
| Mar | 3.5 | -4.7 | 58 | 5.8 |
| Apr | 9.4 | 0.8 | 81 | 7.2 |
| May | 14.4 | 5.7 | 99 | 8 |
| Jun | 17.7 | 10.7 | 97 | 7.7 |
| Jul | 21.4 | 15.6 | 143 | 7.2 |
| Aug | 23.8 | 17.6 | 184 | 6.6 |
| Sep | 21.3 | 12.8 | 161 | 5.9 |
| Oct | 15.8 | 5.5 | 107 | 4.6 |
| Nov | 8.6 | -0.7 | 86 | 3 |
| Dec | 2.6 | -6.5 | 60 | 2.4 |
Average high temperature
Best months by activity
Overall: JunJul
Beaches: AugJulFebMar
Hiking: JunMay
Sightseeing: JunMayJul
Tomakomai quick facts
What to pack
Cold months (Jan, Feb, Mar, Apr, Nov, Dec): warm layers and a coat.
Wet months (May, Jun, Jul, Aug, Sep, Oct): raincoat and umbrella.
Frequently asked questions
When is the best time to visit Tomakomai?
Jun, Jul.
What is the rainiest month?
Aug, about 184 mm.
What is the warmest month?
Aug, with average highs of 23.8°C.
Where to stay
See Tomakomai hotels · Book Tomakomai tours & activities
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Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.