The skiing season in the Grindelwald resort typically spans from November to April. Thanks to its unique mountain climate, Grindelwald enjoys mild and comfortable weather conditions for skiing during the winter months. In winter, you can expect temperatures around 0°C.
The coldest months are January and February, with nighttime temperatures dropping to around -3°C and daytime temperatures reaching around 3°C. On the other hand, the hottest months are July and August, where daytime temperatures can soar to as high as 24°C for 3 days, while nighttime temperatures for 5 days may drop to around 18°C.
However, it's important to note that the weather in the mountains of Grindelwald, especially at higher altitudes, can be quite different. Even on hot summer days in the valley, you can ascend to the mountains where you can experience snow-capped peaks and a significantly different climate.