Saint-Julien-en-Genevois Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Saint-Julien-en-Genevois.
Climate overview of Saint-Julien-en-Genevois
Saint-Julien-en-Genevois, Rhône-Alps, France, sees big temperature differences between seasons, with July peaking at 25°C (77°F) and January dropping to 6°C (43°F).
Rain/snowfall is high, totalling around 1611 mm (63 in) per year. May is the wettest month and February the driest. The city also experiences warm summers and cold winters. The most sunshine falls in July, with an average of 8.9 hours of daily sunshine.
Saint-Julien-en-Genevois Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Saint-Julien-en-Genevois - and find the best time to visit.
Monthly Temperature in Saint-Julien-en-Genevois
Visitors to Saint-Julien-en-Genevois can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 25°C (77°F) in July, the warmest time of the year, to a chilly 6°C (43°F) during cooler months like January.
At night, you can expect temperatures ranging from 14°C (57°F) in July to around -2°C (28°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Saint-Julien-en-Genevois
Saint-Julien-en-Genevois is known for its substantial rain/snowfall, with annual precipitation reaching 1611 mm (63 in). Year-round, Saint-Julien-en-Genevois has a balanced climate with minimal variation in precipitation. The difference between the wettest month, May, with 153 mm (6 in), and the driest month, February, with 122 mm (4.8 in), is minimal. For more details, please visit our Saint-Julien-en-Genevois 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 Saint-Julien-en-Genevois
Seasonal changes in sunshine hours are quite dramatic in Saint-Julien-en-Genevois. While July receives considerable daily sunshine with up to 8.9 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.6 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
Water Temperature in Saint-Julien-en-Genevois
The mean water temperature over the year ranges from 6°C (43°F) in January to 23°C (73°F) in August.
Water temperature over the year
Humidity in Saint-Julien-en-Genevois by Month
The relative humidity is high throughout the year in Saint-Julien-en-Genevois.
The city experiences its highest humidity in December, reaching 82%. In April, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Saint-Julien-en-Genevois
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
- Most sunshine: July
- Best for swimming: June, July, August and September.
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -2°C (28°F).
Frequently asked questions about the climate in Saint-Julien-en-Genevois
What is the best time to visit Saint-Julien-en-Genevois?
June, July, August and September typically offer the most optimal weather in Saint-Julien-en-Genevois. In contrast, January, February, March, November and December tend to have less optimal conditions. Saint-Julien-en-Genevois has warm summers and cold winters.
What temperatures can I expect in Saint-Julien-en-Genevois?
Daytime highs range from 6°C (43°F) in January to 25°C (77°F) in July. Nighttime lows range from -2°C (28°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Saint-Julien-en-Genevois get?
Annual rainfall is around 1611 mm (63 in). May is the wettest month with 153 mm (6 in), while February is the driest with 122 mm (4.8 in).
How sunny is Saint-Julien-en-Genevois?
Saint-Julien-en-Genevois receives around 1,883 hours of sunshine per year. July is the sunniest month with 267 hours, while December is the cloudiest with just 47 hours.
Saint-Julien-en-Genevois 3-Day Forecast
Saint-Julien-en-Genevois 3-Day Forecast
Saint-Julien-en-Genevois on the map
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