Best Time to Visit Grenchen: Month-by-Month Guide
Best months for Grenchen: August, September, July, June.
- Best months for Grenchen: August, September, July, June.
- Peak season is July, August, June. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
- Wettest months: May, June, July.
- The least pleasant month is December (score 4.0).
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 4°C | -2°C | 83 mm | 13 | – | – | 4.1 |
| February | 5°C | -2°C | 75 mm | 12 | – | – | 4.5 |
| March | 10°C | 1°C | 90 mm | 14 | – | – | 5.1 |
| April | 14°C | 4°C | 103 mm | 16 | – | – | 5.6 |
| May | 18°C | 8°C | 147 mm | 18 | – | – | 5.7 |
| June | 21°C | 12°C | 140 mm | 17 | – | – | 6.4 |
| July | 23°C | 14°C | 146 mm | 17 | – | – | 6.5 |
| August | 23°C | 13°C | 149 mm | 16 | – | – | 6.6 |
| September | 18°C | 10°C | 108 mm | 14 | – | – | 6.6 |
| October | 14°C | 6°C | 101 mm | 13 | – | – | 5.9 |
| November | 8°C | 2°C | 96 mm | 13 | – | – | 4.8 |
| December | 4°C | -1°C | 101 mm | 14 | – | – | 4.0 |
Frequently asked questions
When is the best time to visit Grenchen?
The best months are August, September, July, June.
When is the rainy season in Grenchen?
The wettest months are May, June, July.