Zernez Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Zernez.
Climate overview of Zernez
Zernez, Grisons, Switzerland, experiences significant temperature variation throughout the year. Summers bring daytime highs of 16°C (61°F) in July, while winters cool to -6°C (21°F) in January.
The city has a wet climate, receiving around 1332 mm (52 in) of rain/snowfall per year. Despite the high annual total, it has mild summers and very cold winters. June is the wettest month. Sunshine peaks in July, when the city sees around 6.3 hours of sunshine per day.
Zernez Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Zernez - and find the best time to visit.
Monthly Temperature in Zernez
Depending on the time of the year, temperatures range from moderate to very cold in Zernez. On average, daytime temperatures range from a moderate 16°C (61°F) in July to a very cold -6°C (21°F) in January.
Nighttime temperatures range from 5°C (41°F) in July to -15°C (5°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Zernez
Zernez has a relatively rain/snowy climate with high precipitation levels, averaging 1332 mm (52 in) of rain/snowfall annually. The amount of precipitation varies moderately throughout the year. The wettest month, June, sees around 154 mm (6.1 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, February, still receives a respectable 75 mm (3 in) of snowfall. For more details, please visit our Zernez Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Zernez
In Zernez, summer days are longer and more sunny, with daily sunshine hours peaking at 6.3 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 3.2 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
Humidity in Zernez by Month
The relative humidity is high throughout the year in Zernez.
The city experiences its highest humidity in January, reaching 76%. In April, the humidity drops to its lowest level at 71%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Zernez
The mean wind speed varies between 1 m/s (2 knots) and 3 m/s (6 knots) throughout the year. It is lowest in January, February and December and highest during July. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Zernez
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July and August
- Warmest weather: July and August
- Most sunshine: July and August
- Fewer rainy days: February, September, October, November and December
- Seasonal pattern: Mild summers and very cold winters
- Coldest conditions: January, with freezing nights around -15°C (5°F).
Frequently asked questions about the climate in Zernez
What is the best time to visit Zernez?
June, July and August typically offer the most optimal weather in Zernez. In contrast, January, February, March, April, May, September, October, November and December tend to have less optimal conditions. Zernez has mild summers and very cold winters.
What temperatures can I expect in Zernez?
Daytime highs range from -6°C (21°F) in January to 16°C (61°F) in July. Nighttime lows range from -15°C (5°F) to 5°C (41°F). Temperatures vary considerably through the year.
How much rain does Zernez get?
Annual rainfall is around 1332 mm (52 in). June is the wettest month with 154 mm (6.1 in), while February is the driest with 75 mm (3 in).
How sunny is Zernez?
Zernez receives around 1,740 hours of sunshine per year. July is the sunniest month with 188 hours, while December is the cloudiest with just 95 hours.
Zernez 3-Day Forecast
Zernez on the map
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