Ferney-Voltaire Weather in September

Ferney-Voltaire in September sees pleasant temperatures, with highs around 20°C (68°F) and overnight lows of 10°C (50°F). Rainfall is fairly high at around 124 mm (4.9 in) on average, so pack waterproofs just in case.

Rainfall in Ferney-Voltaire in September

You can expect rain on around 12 days based on historical patterns, with 124 mm (4.9 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Ferney-Voltaire in September

In September, Ferney-Voltaire sees pleasant temperatures, with highs of 20°C (68°F). Nights drop to around 10°C (50°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 10°C (50°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Ferney-Voltaire in September

The city usually sees around 183 hours of sunlight, indicating a moderately sunny period.

Average water temperature in September

The water sits at 20°C (68°F), which is a nice temperature for swimming. Not too cold, not too warm — most visitors are happy to spend time in the water.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Ferney-Voltaire.

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For a detailed overview over the year and the best time to visit France, check out our Ferney-Voltaire's climate page.

Ferney-Voltaire Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 20°C (68°F)  

Water Temperature 20°C (68°F) *  

Chance of Rain 40%  

Precipitation 124 mm (4.9 in)  

Rainy days 12 days  

Humidity 74% *  

Sunshine 183 hours *  

Percentage Sunshine 55% *  

* Data from: Geneva, Switzerland (6 KM, 3 Miles).

What to Wear in Ferney-Voltaire in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. With water temperatures around 20°C (68°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Ferney-Voltaire in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

3/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit France, check out our Ferney-Voltaire's climate page.

More climate data for Ferney-Voltaire

Temperature Rainfall Sunshine Humidity Water Temp

See the full Ferney-Voltaire climate overview or explore weather in France.