Callac Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Callac.
Climate overview of Callac
Callac, Brittany, France, experiences significant temperature variation throughout the year. Summers bring daytime highs of 22°C (72°F) in August, while winters cool to 10°C (50°F) in February.
Annual rainfall is moderate at around 918 mm (36 in), with December being the wettest month. The sunniest month is July, with 7.6 hours of sunshine per day on average.
Callac Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Callac — and find the best time to visit.
Monthly Temperature in Callac
Depending on the time of the year, temperatures range from comfortable to chilly in Callac. Average daytime temperatures reach a comfortable 22°C (72°F) in August. In February, the coolest month of the year, temperatures drop to a chilly 10°C (50°F).
At night, temperatures range from around 13°C (55°F) in August to 3°C (37°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Callac
Generally, Callac has a moderate amount of precipitation, averaging 918 mm (36 in) of rainfall annually. Callac experiences moderate seasonal variation in rainfall, with monthly averages ranging from 97 mm (3.8 in) in December, the wettest month, and 58 mm (2.3 in) in July, the driest month. For more details, please visit our Callac 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 Callac
Callac can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 7.6 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.1 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Callac by Month
The city experiences its highest humidity in January, reaching 86%. In April, the humidity drops to its lowest level at 81%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Callac
Rainfall during this time ranges from 58 mm (2.3 in) in July to 70 mm (2.8 in) in June. This means you can expect a mix of sunny days and occasional showers. 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 Callac
What is the best time to visit Callac?
June, July, August and September typically offer the most optimal weather in Callac. In contrast, January, February and December tend to have less optimal conditions.
What temperatures can I expect in Callac?
Daytime highs range from 10°C (50°F) in February to 22°C (72°F) in August. Nighttime lows range from 3°C (37°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Callac get?
Annual rainfall is around 918 mm (36 in). December is the wettest month with 97 mm (3.8 in), while July is the driest with 58 mm (2.3 in).
How sunny is Callac?
Callac receives around 1,752 hours of sunshine per year. July is the sunniest month with 229 hours, while December is the cloudiest with just 63 hours.
Callac 3-Day Forecast
Callac 3-Day Forecast
Callac on the map
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Where to go in July — average daytime high across popular destinations.
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