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Guissény Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Guissény.
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Climate overview of Guissény
Temperatures in Guissény, Brittany, France, shift moderately through the seasons. The warmest month is August at 20°C (68°F), and the coolest is February at 11°C (52°F).
The city receives around 973 mm (38 in) of rainfall per year. December is the wettest month and July the driest. The most sunshine falls in July, with an average of 7.6 hours of daily sunshine.
Guissény Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Guissény - and find the best time to visit.
Monthly Temperature in Guissény
The climate in Guissény experiences moderate temperature changes, with mild shifts between seasons. On average, daytime temperatures range from a pleasant 20°C (68°F) in August to a chilly 11°C (52°F) in February.
Nighttime temperatures range from 15°C (59°F) in August to 7°C (45°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Guissény
Generally, Guissény receives mid-range precipitation levels, with 973 mm (38 in) annually. The seasons in Guissény bring significant changes in precipitation. The wettest month, December, receives high rainfall, with an average of 120 mm (4.7 in) of precipitation. This rainfall is distributed across 21 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 49 mm (1.9 in) over 13 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Guissény 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 Guissény
In Guissény, summer days are longer and more sunny, with daily sunshine hours peaking at 7.6 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.1 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Brest, France (20 KM, 12 Miles).
Daily hours of sunshine
Data from: Brest, France (20 KM, 12 Miles).
Daily percentage of sunshine
Data from: Brest, France (20 KM, 12 Miles).
Water Temperature in Guissény
The mean water temperature over the year ranges from 10°C (50°F) in January to 16°C (61°F) in August.
Water temperature over the year
Data from: Brest, France (20 KM, 12 Miles).
Humidity in Guissény 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
Data from: Brest, France (20 KM, 12 Miles).
Wind Speed in Guissény
The mean wind speed over the year ranges from 4 m/s (8 knots) in June, July, August, September, October and November to 5 m/s (10 knots) in January, February, March, April, May and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Data from: Brest, France (20 KM, 12 Miles).
Best Time to Visit Guissény
The most comfortable overall weather for exploring Guissény is usually found in August. Conditions are generally least comfortable in January, February and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
wet
Feb
wet
Mar
mixed
Apr
mixed
May
good
Jun
very good
Jul
very good
Aug
excellent
Sep
very good
Oct
mixed
Nov
mixed
Dec
wet
- Best overall: August
- Warmest weather: July, August and September
- Most sunshine: July
- Fewest rainy days: June, July, August and September
- Warmest water temperature: July, August and September, although the water may still feel cool.
Frequently asked questions about the climate in Guissény
What is the best time to visit Guissény?
August typically offers the most optimal weather in Guissény. In contrast, January, February and December tend to have less optimal conditions.
What temperatures can I expect in Guissény?
Daytime highs range from 11°C (52°F) in February to 20°C (68°F) in August. Nighttime lows range from 7°C (45°F) to 15°C (59°F).
How much rain does Guissény get?
Annual rainfall is around 973 mm (38 in). December is the wettest month with 120 mm (4.7 in), while July is the driest with 49 mm (1.9 in).
How sunny is Guissény?
Guissény 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.
Guissény 3-Day Forecast
Guissény on the map
Guissény is highlighted - select any city to see its climate.
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