The 5 most scenic train journeys in Switzerland
Explore Switzerland's top 5 train journeys, featuring breathtaking Alpine views and engineering marvels like the Glacier Express and Bernina Express.
Grône Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Grône.
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10-day forecastForecast
Climate overview of Grône
The climate in Grône, Canton of Valais, Switzerland, is marked by large temperature swings across the seasons, ranging from 19°C (66°F) in July to -4°C (25°F) in January.
Rain/snowfall is high, totalling around 1530 mm (60 in) per year. May is the wettest month and October the driest. The city also experiences pleasant summers and very cold winters. July is the sunniest month, averaging 9.0 hours of sunshine per day.
Grône Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Grône - and find the best time to visit.
Monthly Temperature in Grône
In Grône, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a pleasant 19°C (66°F) in July, the warmest time of the year, to a very cold -4°C (25°F) during cooler months like January.
At night, you can expect temperatures ranging from 7°C (45°F) in July to around -14°C (7°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Grône
Grône experiences significant rain/snowfall throughout the year, averaging 1530 mm (60 in) of precipitation annually. Year-round, Grône has a balanced climate with minimal variation in precipitation. The difference between the wettest month, May, with 150 mm (5.9 in), and the driest month, October, with 109 mm (4.3 in), is minimal. For more details, please visit our Grône 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 Grône
Seasonal changes in sunshine hours are quite dramatic in Grône. While July receives considerable daily sunshine with up to 9.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.3 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Sion, Switzerland (10 KM, 6 Miles).
Daily hours of sunshine
Data from: Sion, Switzerland (10 KM, 6 Miles).
Daily percentage of sunshine
Data from: Sion, Switzerland (10 KM, 6 Miles).
Humidity in Grône by Month
The relative humidity is high throughout the year in Grône.
The city experiences its highest humidity in December, reaching 83%. In April, the humidity drops to its lowest level at 59%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Sion, Switzerland (10 KM, 6 Miles).
Wind Speed in Grône
The average wind speed over the year ranges from 1 m/s (2 knots) to 2 m/s (4 knots). It is lower in January, October, November and December and higher in February, March, April, May, June, July, August and September. What does this mean?
The mean monthly wind speed over the year (meters per second)
Data from: Sion, Switzerland (10 KM, 6 Miles).
Best Time to Visit Grône
The most favourable weather available in Grône usually occurs in July and August. Conditions are generally most challenging in January, February, March, April, May, October, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
very cold
Feb
very cold
Mar
cold
Apr
wet
May
wet
Jun
mixed
Jul
good
Aug
good
Sep
mixed
Oct
wet
Nov
cold
Dec
very cold
- Best overall: July and August
- Warmest weather: July and August
- Most sunshine: July
- Seasonal pattern: Pleasant summers and very cold winters
- Coldest conditions: January, with freezing nights around -14°C (7°F).
Frequently asked questions about the climate in Grône
What is the best time to visit Grône?
July and August typically offer the most optimal weather in Grône. In contrast, January, February, March, April, May, October, November and December tend to have less optimal conditions. Grône has pleasant summers and very cold winters.
What temperatures can I expect in Grône?
Daytime highs range from -4°C (25°F) in January to 19°C (66°F) in July. Nighttime lows range from -14°C (7°F) to 7°C (45°F). Temperatures vary considerably through the year.
How much rain does Grône get?
Annual rainfall is around 1530 mm (60 in). May is the wettest month with 150 mm (5.9 in), while October is the driest with 109 mm (4.3 in).
How sunny is Grône?
Grône receives around 2,171 hours of sunshine per year. July is the sunniest month with 270 hours, while December is the cloudiest with just 70 hours. Overall, Grône enjoys abundant sunshine.
Grône 3-Day Forecast
Grône on the map
Grône is highlighted - select any city to see its climate.
Popular in November
Where to go in November - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 5 most scenic train journeys in Switzerland
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The Verzasca Valley
You can visit the Verzasca Valley in any season. It's an amazing place for swimming and it is a paradise for hikers. A must see for the bucket list.
Balloon at Chateau D'oex
If you are looking for a special place to visit in Europe in January we recommend visiting the annual balloon festival in Château-d'Oex, Switzerland.