Blois Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Blois.
Climate overview of Blois
The climate in Blois, Centre, France, is marked by large temperature swings across the seasons, ranging from 27°C (81°F) in August to 9°C (48°F) in January.
The city receives around 743 mm (29 in) of rain/snowfall per year. It experiences warm summers and cold winters. December is the wettest month and July the driest. The sunniest month is July, with 8.0 hours of sunshine per day on average.
Blois Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Blois - and find the best time to visit.
Monthly Temperature in Blois
In Blois, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 27°C (81°F) in August to a chilly 9°C (48°F) in January.
Nighttime temperatures range from 15°C (59°F) in August to 2°C (36°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Blois
On average, Blois receives a reasonable amount of rain/snowfall, with an annual precipitation of 743 mm (29 in). The wettest period in Blois occurs in December, which receives around 74 mm (2.9 in) of precipitation. During the driest month, July, Blois experiences moderate rainfall, totaling 53 mm (2.1 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Blois 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 Blois
In Blois, summer days are longer and more sunny, with daily sunshine hours peaking at 8.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.0 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Blois by Month
The city experiences its highest humidity in December, reaching 90%. In July, the humidity drops to its lowest level at 72%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Blois
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August and September
- Warmest weather: July and August
- Most sunshine: June, 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 Blois
What is the best time to visit Blois?
May, June, July, August and September typically offer the most optimal weather in Blois. In contrast, January, February and December tend to have less optimal conditions. Blois has warm summers and cold winters.
What temperatures can I expect in Blois?
Daytime highs range from 9°C (48°F) in January to 27°C (81°F) in August. Nighttime lows range from 2°C (36°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Blois get?
Annual rainfall is around 743 mm (29 in). December is the wettest month with 74 mm (2.9 in), while July is the driest with 53 mm (2.1 in).
How sunny is Blois?
Blois receives around 1,845 hours of sunshine per year. July is the sunniest month with 241 hours, while December is the cloudiest with just 60 hours.
Blois 3-Day Forecast
Blois on the map
Blois is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Marseille
32°C (90°F) Toulouse
29°C (84°F) Bordeaux29°C (84°F) Lyon28°C (82°F) Cannes27°C (81°F) Nice27°C (81°F) Paris26°C (79°F) Chamonix-Mont-Blanc
18°C (64°F) 
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