Guern Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Guern.
Climate overview of Guern
Guern, Brittany, France, sees big temperature differences between seasons, with July peaking at 23°C (73°F) and January dropping to 10°C (50°F).
The city receives around 822 mm (32 in) of rainfall per year. It experiences warm summers and cold winters. December is the wettest month and July the driest.
Guern Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Guern - and find the best time to visit.
Monthly Temperature in Guern
Visitors to Guern can expect significant temperature changes throughout the year. On average, daytime temperatures range from a comfortable 23°C (73°F) in July to a chilly 10°C (50°F) in January.
Nighttime temperatures range from 13°C (55°F) in July to 3°C (37°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Guern
Generally, Guern experiences moderate precipitation patterns, averaging 822 mm (32 in) yearly. The amount of precipitation varies moderately throughout the year. The wettest month, December, sees around 90 mm (3.5 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, July, still receives a respectable 47 mm (1.9 in) of rainfall. For more details, please visit our Guern Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Guern
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Fewest rainy days: June, July, August and September
- Seasonal pattern: Warm summers and cold winters
Frequently asked questions about the climate in Guern
What is the best time to visit Guern?
June, July, August and September typically offer the most optimal weather in Guern. In contrast, January tends to have less optimal conditions. Guern has warm summers and cold winters.
What temperatures can I expect in Guern?
Daytime highs range from 10°C (50°F) in January to 23°C (73°F) in July. Nighttime lows range from 3°C (37°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Guern get?
Annual rainfall is around 822 mm (32 in). December is the wettest month with 90 mm (3.5 in), while July is the driest with 47 mm (1.9 in).
Guern 3-Day Forecast
Guern on the map
Guern is highlighted - select any city to see its climate.
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