Best Time to Visit Isumi: Month-by-Month Guide
Best months for Isumi: August, July, May.
- Best months for Isumi: August, July, May.
- Peak season is August, July, September. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
- Shoulder season: May. Good weather without the busiest period.
- Wettest months: September, October, March.
- The least pleasant month is March (score 5.3).
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 10°C | 6°C | 109 mm | 10 | – | – | 5.7 |
| February | 10°C | 6°C | 106 mm | 12 | – | – | 5.6 |
| March | 13°C | 9°C | 156 mm | 14 | – | – | 5.3 |
| April | 16°C | 13°C | 126 mm | 12 | – | – | 6.4 |
| May | 20°C | 17°C | 138 mm | 11 | – | – | 7.0 |
| June | 23°C | 20°C | 191 mm | 14 | – | – | 6.7 |
| July | 26°C | 24°C | 130 mm | 11 | – | – | 7.3 |
| August | 28°C | 25°C | 101 mm | 11 | – | – | 7.5 |
| September | 25°C | 23°C | 194 mm | 15 | – | – | 6.6 |
| October | 21°C | 19°C | 234 mm | 15 | – | – | 6.3 |
| November | 17°C | 14°C | 147 mm | 14 | – | – | 6.1 |
| December | 13°C | 9°C | 104 mm | 12 | – | – | 5.9 |
Frequently asked questions
When is the best time to visit Isumi?
The best months are August, July, May.
When is the rainy season in Isumi?
The wettest months are September, October, March.