Grainau Weather & Climate: Best Time to Visit

Visitors to Grainau can expect significant temperature changes throughout the year. On average, daytime temperatures range from a pleasant 21°C (70°F) in July to a very cold 1°C (34°F) in January.

Nighttime temperatures range from 10°C (50°F) in July to -8°C (18°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Grainau is known for its substantial rain/snowfall, with annual precipitation reaching 1724 mm (68 in). The seasons in Grainau bring significant changes in precipitation. The wettest month, June, receives heavy rainfall, with an average of 215 mm (8.5 in) of precipitation. This rainfall is distributed across 19 rainy days.

In contrast, the driest month, January, experiences much less snowfall, totaling 92 mm (3.6 in) over 16 snowy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Grainau Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

In Grainau, summer days are longer and more sunny, with daily sunshine hours peaking at 7.7 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.8 hours per average day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is moderate throughout the year in Grainau.

The city experiences its highest humidity in January, reaching 61%. In April, the humidity drops to its lowest level at 43%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year