Weather in Geneva in August 2025
- August is usually the hottest month of the year in Geneva;
Average weather
Average temperature in Geneva in August
The temperature in August is +79°F on average, with a range between a maximum of +97°F during the day and a minimum of +50°F at night.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +70°F to +70°F.
Is Geneva warm or cold in August?
Geneva is typically warm in August.
Maximum temperatures go up compared to the previous month from +77°F to +77°F. The minimum temperature also goes down from +59°F to +57°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
August is the hottest month in Geneva, here is the comparison with other months:
Climate in Geneva in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +77°F | +77°F | +70°F | ||||
| Min. temperature | ||||||
| +43°F | +41°F | +36°F | ||||
| Max. temperature | ||||||
| +102°F | +100°F | +88°F | ||||
| Rainfall | ||||||
| 151 mm | 142 mm | 122 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 64% | 67% | 73% | ||||
| Air pressure | ||||||
| 1016 HPa | 1016 HPa | 1017 HPa | ||||
| Sunny days | ||||||
| 9 | 8 | 7 | ||||
| Cloudy days | ||||||
| 5 | 5 | 9 | ||||
| Rainy days | ||||||
| 13 | 14 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as good as in July. The temperature levels stay the same in the area of +77°F for average maximum temperature during the day. As August arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 151 mm to 142 mm. Humidity rises from 64% to 67%. The average wind speed doesn’t change much during August, staying around 1 m/s. The days becoming less sunny, going from 9 sunny days in July to 8 in August.
September brings much the same weather, it remains good.
Wind
The average wind speed is 1 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Geneva is gradually increasing during August, going from 2 m/s to 2 m/s over the course of the month.
Rain
How was the weather last August in Geneva?
Climate Change Over the Years
The climate in Geneva in August has not changed that much over the last 43 years.
The average temperature was the lowest in 1980 (+54°F) and the highest in 2022 (+65°F). The driest year was 1989 with only 1095 mm of rainfall, and the wettest year was 2021 with 1882 mm.
FAQ
Is August a good time to visit Geneva?
Can you sunbathe in Geneva in August?
Is Geneva rainy in August?
Is it sunny in Geneva in August?
Other cities in Switzerland
Monthly weather in Geneva
Source of the data
For this page, we’ve looked at the typical weather in Geneva, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.