Best Time to Visit Karuizawa: Month-by-Month Guide
Best months for Karuizawa: November, July, August, September.
- Best months for Karuizawa: November, 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: August, July, June.
- The least pleasant month is February (score 4.6).
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 3°C | -4°C | 60 mm | 7 | – | – | 4.6 |
| February | 4°C | -4°C | 64 mm | 9 | – | – | 4.6 |
| March | 8°C | -1°C | 107 mm | 13 | – | – | 4.8 |
| April | 14°C | 5°C | 122 mm | 13 | – | – | 5.9 |
| May | 19°C | 10°C | 166 mm | 17 | – | – | 6.0 |
| June | 22°C | 15°C | 256 mm | 23 | – | – | 6.0 |
| July | 26°C | 19°C | 279 mm | 24 | – | – | 6.1 |
| August | 26°C | 19°C | 242 mm | 24 | – | – | 6.1 |
| September | 22°C | 16°C | 244 mm | 20 | – | – | 6.1 |
| October | 17°C | 9°C | 192 mm | 14 | – | – | 5.8 |
| November | 12°C | 3°C | 70 mm | 9 | – | – | 6.3 |
| December | 6°C | -1°C | 48 mm | 8 | – | – | 5.3 |
Frequently asked questions
When is the best time to visit Karuizawa?
The best months are November, July, August, September.
When is the rainy season in Karuizawa?
The wettest months are August, July, June.