Best Time to Visit Kōshū: Month-by-Month Guide
Best months for Kōshū: May, July, August, September.
- Best months for Kōshū: May, July, August, September.
- Peak season is August, July, September. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
- Wettest months: July, August, June.
- The least pleasant month is March (score 4.4).
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 3°C | -6°C | 67 mm | 7 | – | – | 4.5 |
| February | 4°C | -6°C | 75 mm | 10 | – | – | 4.4 |
| March | 8°C | -2°C | 125 mm | 14 | – | – | 4.4 |
| April | 14°C | 4°C | 131 mm | 14 | – | – | 5.6 |
| May | 19°C | 9°C | 148 mm | 16 | – | – | 6.1 |
| June | 21°C | 14°C | 207 mm | 20 | – | – | 6.0 |
| July | 25°C | 18°C | 231 mm | 22 | – | – | 6.1 |
| August | 26°C | 18°C | 191 mm | 22 | – | – | 6.1 |
| September | 22°C | 15°C | 223 mm | 18 | – | – | 6.1 |
| October | 17°C | 9°C | 208 mm | 15 | – | – | 5.6 |
| November | 11°C | 3°C | 87 mm | 10 | – | – | 6.0 |
| December | 6°C | -2°C | 58 mm | 8 | – | – | 5.1 |
Frequently asked questions
When is the best time to visit Kōshū?
The best months are May, July, August, September.
When is the rainy season in Kōshū?
The wettest months are July, August, June.