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Châtillon Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Châtillon.
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Climate overview of Châtillon
Temperatures in Châtillon, Valle d'Aosta, Italy, vary greatly throughout the year. July is the hottest month at 17°C (63°F), while January is the coldest at -4°C (25°F).
Rain/snowfall is high, totalling around 1397 mm (55 in) per year. November is the wettest month and February the driest. The city also experiences mild summers and very cold winters. July is the sunniest month, averaging 6.7 hours of sunshine per day.
Châtillon Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Châtillon - and find the best time to visit.
Monthly Temperature in Châtillon
The climate in Châtillon is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a moderate 17°C (63°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 -12°C (10°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Châtillon
Châtillon has a notably wet climate with abundant precipitation, recording 1397 mm (55 in) of rain/snowfall per year. While snowfall varies throughout the year, each season offers its own charm. November brings wetter days averaging 150 mm (5.9 in) of precipitation, spread over 14 snowy days.
In contrast, the driest month February experiences a drier climate, with about 77 mm (3 in) of snowfall spread across 13 snowy days. For more details, please visit our Châtillon 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 Châtillon
Seasonal changes in sunshine hours are quite dramatic in Châtillon. While July receives considerable daily sunshine with up to 6.7 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.8 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Zermatt, Switzerland (32 KM, 20 Miles).
Daily hours of sunshine
Data from: Zermatt, Switzerland (32 KM, 20 Miles).
Daily percentage of sunshine
Data from: Zermatt, Switzerland (32 KM, 20 Miles).
Humidity in Châtillon by Month
The relative humidity is high throughout the year in Châtillon.
The city experiences its highest humidity in August, reaching 70%. In January, the humidity drops to its lowest level at 65%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Zermatt, Switzerland (32 KM, 20 Miles).
Best Time to Visit Châtillon
For the most comfortable conditions available during the year, consider visiting Châtillon in June, July and August. Conditions are usually least comfortable in January, February, March, April, May, September, 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
mixed
Aug
mixed
Sep
wet
Oct
wet
Nov
cold
Dec
very cold
- Best overall: June, July and August
- Warmest weather: July and August
- Most sunshine: July
- Seasonal pattern: Mild summers and very cold winters
- Coldest conditions: January, with freezing nights around -12°C (10°F).
Frequently asked questions about the climate in Châtillon
What is the best time to visit Châtillon?
June, July and August typically offer the most optimal weather in Châtillon. In contrast, January, February, March, April, May, September, October, November and December tend to have less optimal conditions. Châtillon has mild summers and very cold winters.
What temperatures can I expect in Châtillon?
Daytime highs range from -4°C (25°F) in January to 17°C (63°F) in July. Nighttime lows range from -12°C (10°F) to 7°C (45°F). Temperatures vary considerably through the year.
How much rain does Châtillon get?
Annual rainfall is around 1397 mm (55 in). November is the wettest month with 150 mm (5.9 in), while February is the driest with 77 mm (3 in). In the coldest months, precipitation may fall as snow.
How sunny is Châtillon?
Châtillon receives around 1,685 hours of sunshine per year. July is the sunniest month with 202 hours, while December is the cloudiest with just 83 hours.
Châtillon 3-Day Forecast
Châtillon on the map
Châtillon is highlighted - select any city to see its climate.
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