Trun Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Trun.
Climate overview of Trun
Trun, Grisons, Switzerland, sees big temperature differences between seasons, with July peaking at 17°C (63°F) and January dropping to -3°C (27°F).
With around 1839 mm (72 in) of annual rain/snowfall, Trun has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has a distinct rainy season from June to August. The wettest month is August. July is the sunniest month, averaging 6.5 hours of sunshine per day.
Trun Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Trun — and find the best time to visit.
Monthly Temperature in Trun
Visitors to Trun can expect significant temperature changes throughout the year. Average daytime temperatures reach a moderate 17°C (63°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -3°C (27°F).
At night, temperatures range from around 7°C (45°F) in July to -11°C (12°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Trun
Trun is known for its substantial rain/snowfall, with annual precipitation reaching 1839 mm (72 in). Trun experiences moderate seasonal variation in rainfall, with monthly averages ranging from 220 mm (8.7 in) in August, the wettest month, and 106 mm (4.2 in) in February, the driest month. For more details, please visit our Trun Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
Sunshine Hours in Trun
Trun can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 6.5 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.4 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Trun by Month
The relative humidity is high throughout the year in Trun.
The city experiences its highest humidity in September, reaching 75%. In April, the humidity drops to its lowest level at 66%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Trun
The weather brings rainfall of 207 mm (8.1 in) during this period.
Plan accordingly for May, June, July, August and September, when conditions bring the heaviest precipitation. Wondering where to travel based on your weather preferences? Our recommendation tool helps you find destinations with your ideal climate conditions. Use our weather planner to find your perfect destination.
Frequently asked questions about the climate in Trun
What is the best time to visit Trun?
Trun has a distinct rainy season from June to August.
What temperatures can I expect in Trun?
Daytime highs range from -3°C (27°F) in January to 17°C (63°F) in July. Nighttime lows range from -11°C (12°F) to 7°C (45°F). Temperatures vary considerably through the year.
How much rain does Trun get?
Annual rainfall is around 1839 mm (72 in). August is the wettest month with 220 mm (8.7 in), while February is the driest with 106 mm (4.2 in).
How sunny is Trun?
Trun receives around 1,582 hours of sunshine per year. July is the sunniest month with 196 hours, while December is the cloudiest with just 72 hours.
Trun 3-Day Forecast
Trun 3-Day Forecast
Trun on the map
Trun is highlighted — select any city to see its climate.
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