Best Time to Visit Lewiston: Month-by-Month Guide
Best months for Lewiston: August, July, September, June.
- Best months for Lewiston: August, July, September, June.
- Peak season is July, August, June. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
- Shoulder season: September. Good weather without the busiest period.
- Wettest months: June, May, December.
- The least pleasant month is December (score 3.9).
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -1°C | -10°C | 80 mm | 9 | – | – | 3.9 |
| February | 0°C | -9°C | 77 mm | 9 | – | – | 3.9 |
| March | 5°C | -4°C | 97 mm | 10 | – | – | 4.5 |
| April | 11°C | 2°C | 98 mm | 10 | – | – | 5.8 |
| May | 17°C | 8°C | 79 mm | 11 | – | – | 6.9 |
| June | 22°C | 13°C | 94 mm | 11 | – | – | 7.6 |
| July | 26°C | 17°C | 79 mm | 10 | – | – | 7.8 |
| August | 25°C | 16°C | 80 mm | 9 | – | – | 7.9 |
| September | 21°C | 12°C | 87 mm | 9 | – | – | 7.7 |
| October | 14°C | 6°C | 113 mm | 10 | – | – | 6.4 |
| November | 8°C | 1°C | 90 mm | 9 | – | – | 5.4 |
| December | 2°C | -5°C | 104 mm | 10 | – | – | 3.9 |
Frequently asked questions
When is the best time to visit Lewiston?
The best months are August, July, September, June.
When is the rainy season in Lewiston?
The wettest months are June, May, December.