Best Time to Visit Oshu
Best time: May, Jun, Aug.
Aug is warmest (28°C high); Jul is rainiest (170 mm).
Oshu weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | 1.4 | -6 | 65 | 3 |
| Feb | 2.3 | -5.4 | 59 | 4.1 |
| Mar | 6.9 | -2.1 | 74 | 5.8 |
| Apr | 13.7 | 3.3 | 99 | 7.3 |
| May | 18.9 | 8.8 | 101 | 8.2 |
| Jun | 22.3 | 14 | 124 | 7.5 |
| Jul | 26.2 | 18.6 | 170 | 7.3 |
| Aug | 28 | 20.1 | 137 | 7.3 |
| Sep | 23.5 | 15.2 | 169 | 5.5 |
| Oct | 17.8 | 7.9 | 118 | 4.7 |
| Nov | 11.4 | 1.9 | 79 | 3.3 |
| Dec | 4.8 | -2.8 | 77 | 2.7 |
Average high temperature
Best months by activity
Overall: MayJunAug
Beaches: JulAugJunSep
Hiking: May
Sightseeing: MayJunAugOct
Oshu quick facts
What to pack
Cold months (Jan, Feb, Mar, Nov, Dec): warm layers and a coat.
Wet months (Apr, May, Jun, Jul, Aug, Sep, Oct): raincoat and umbrella.
Frequently asked questions
When is the best time to visit Oshu?
May, Jun, Aug.
What is the rainiest month?
Jul, about 170 mm.
What is the warmest month?
Aug, with average highs of 28°C.
Where to stay
See Oshu hotels · Book Oshu tours & activities
All destinations · Best time to visit Tokyo · Best time to visit Kyoto · Best time to visit Fuji · Best time to visit Atsugi
Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.