Geneva weather
Our guide to the weather in Geneva during September
Geneva, Switzerland is a beautiful and diverse city with plenty of cultural and outdoor activities to enjoy year-round, and September is no exception; however, it can be quite chilly so be sure to pack some warm clothes. We've looked at the most up-to-date weather data for Geneva, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Geneva weather in September.
How warm is it in Geneva during September?
The temperature reaches around 21℃ during the daytime in September, falling away to 8℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.
Does it rain in Geneva during September?
On average, there will be 6 rainy days during the month, amounting to 120.9mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.
Is it windy in Geneva during September?
You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in September. With moderate air temperatures, any breeze will feel cool.
Weather in Geneva
Our month-by-month guide to the weather and climate in Geneva
Geneva weather in
JanuaryGeneva weather in
FebruaryGeneva weather in
MarchGeneva weather in
AprilGeneva weather in
MayGeneva weather in
JuneGeneva weather in
JulyGeneva weather in
AugustGeneva weather in
SeptemberGeneva weather in
OctoberGeneva weather in
NovemberGeneva weather in
December