Trin Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Trin.
Climate overview of Trin
The climate in Trin, Grisons, Switzerland, is marked by large temperature swings across the seasons, ranging from 19°C (66°F) in July to -2°C (28°F) in January.
The city receives considerable rain/snowfall, with around 1774 mm (70 in) annually. June is the wettest month. It has a distinct rainy season from June to August, with pleasant summers and very cold winters. The sunniest month is July, with 6.3 hours of sunshine per day on average.
Trin Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Trin - and find the best time to visit.
Monthly Temperature in Trin
In Trin, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a pleasant 19°C (66°F) in July to a very cold -2°C (28°F) in the coolest month, January.
Nights vary from 8°C (46°F) in July to around -10°C (14°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Trin
Trin experiences significant rain/snowfall throughout the year, averaging 1774 mm (70 in) of precipitation annually. Trin offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month June (211 mm (8.3 in)) and the driest month February (103 mm (4.1 in)) is not too significant. For more details, please visit our Trin 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 Trin
For those who appreciate different seasons, Trin serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 6.3 hours of sunshine daily, and embrace the darker days in December, offering only 3.2 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Trin by Month
The relative humidity is high throughout the year in Trin.
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
Best Time to Visit Trin
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: July and August
- Most sunshine: July and August
- Seasonal pattern: A distinct rainy season from June to August, with pleasant summers and very cold winters
- Coldest conditions: January, with freezing nights around -10°C (14°F).
Frequently asked questions about the climate in Trin
What is the best time to visit Trin?
September typically offers the most optimal weather in Trin. In contrast, January, February, March, April, May, June, July, August, October, November and December tend to have less optimal conditions. Trin has a distinct rainy season from June to August, with pleasant summers and very cold winters.
What temperatures can I expect in Trin?
Daytime highs range from -2°C (28°F) in January to 19°C (66°F) in July. Nighttime lows range from -10°C (14°F) to 8°C (46°F). Temperatures vary considerably through the year.
How much rain does Trin get?
Annual rainfall is around 1774 mm (70 in). June is the wettest month with 211 mm (8.3 in), while February is the driest with 103 mm (4.1 in).
How sunny is Trin?
Trin 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.
Trin 3-Day Forecast
Trin 3-Day Forecast
Trin on the map
Trin is highlighted - select any city to see its climate.
Popular this month
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