Best Time to Visit Boise: Month-by-Month Guide
Best months for Boise: September, June, May.
- Best months for Boise: September, June, May.
- Peak season is July, August, June. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
- Shoulder season: April, May, September, October. Good weather without the busiest period.
- Wettest months: December, January, March.
- The least pleasant month is December (score 4.6).
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 5°C | -3°C | 46 mm | 10 | – | – | 4.7 |
| February | 8°C | -1°C | 31 mm | 8 | – | – | 5.6 |
| March | 14°C | 3°C | 36 mm | 9 | – | – | 6.6 |
| April | 18°C | 5°C | 31 mm | 7 | – | – | 7.5 |
| May | 24°C | 9°C | 31 mm | 6 | – | – | 8.3 |
| June | 29°C | 13°C | 16 mm | 3 | – | – | 8.7 |
| July | 35°C | 17°C | 3 mm | 1 | – | – | 7.4 |
| August | 34°C | 17°C | 3 mm | 1 | – | – | 7.6 |
| September | 28°C | 12°C | 10 mm | 2 | – | – | 8.8 |
| October | 19°C | 6°C | 22 mm | 4 | – | – | 8.1 |
| November | 10°C | 1°C | 34 mm | 8 | – | – | 6.0 |
| December | 4°C | -2°C | 50 mm | 10 | – | – | 4.6 |
Frequently asked questions
When is the best time to visit Boise?
The best months are September, June, May.
When is the rainy season in Boise?
The wettest months are December, January, March.