Geneva, Switzerland Climate & Monthly Averages
Geneva has an oceanic climate. July is the hottest month, averaging 80° by day; January is the coldest at 42°.
Sunshine is a defining feature of Geneva's climate
Geneva records 142 wet days and 9.0 hours of daily sunshine in an average year. Temperatures follow an oceanic pattern, running 42°F (6°C) in January up to 80°F (27°C) in July.
How sun, temperature and rain fit together
Snow falls on roughly 15 days a year, mostly November through April. January is the coolest month, with highs of 42°F (6°C) and lows near 32°F (0°C). Warmth peaks in July: highs of 80°F (27°C), lows of 63°F (17°C). The gridded 2015-2024 daily record for this location tops out at 101°F (38°C) and bottoms at 17°F (-8°C) - decade extremes, not all-time station records. The wettest month is May (5.3 inches (134 mm) across 14 days) and the driest August.
Sunshine averages 9.0 hours a day over the year, peaking in July at 13.1 hours. Average lows drop to freezing in one month of the year, January.
More climate facts for Geneva
- Hottest month: July - highs near 80°F (27°C)
- Coldest month: January - highs near 42°F (6°C)
- Decade extremes (2015-2024): 101°F (38°C) high · 17°F (-8°C) low
- Wettest month: May (14 rainy days) · Sunniest: July (13.1 h sun/day)
- Climate type: oceanic
- Annual swing: 19°C between the average warmest and coolest month · day to night: 8°C
- Snow: about 15 days a year
- Months with freezing average lows: 1
- Average humidity: 75%
The most comfortable sunny-weather window
Best time to visit Geneva
Aim for July to October and April if you get the choice: warm days, manageable rainfall and plenty of daylight line up, and highs average 70°F (21°C) against roughly 10 wet days a month. For the same question asked the other way round, see where else is warm in July.
What to pack
Pack for Geneva with a warm jacket and layers for the cooler season and proper waterproofs rather than an umbrella - wet days are the norm here. Note the gap between afternoon and night: July pairs 80°F (27°C) with 63°F (17°C).
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 42° | 32° | 13 | 4.7 in | 5.4 h/day | 9.0 h | 43% | 81% |
| February | 46° | 33° | 10 | 3.2 in | 7.0 h/day | 10.3 h | 36% | 78% |
| March | 52° | 37° | 12 | 3.9 in | 8.6 h/day | 11.8 h | 40% | 74% |
| April | 59° | 42° | 11 | 3.2 in | 10.3 h/day | 13.5 h | 37% | 69% |
| May | 65° | 50° | 14 | 5.3 in | 10.8 h/day | 15.0 h | 46% | 73% |
| June | 75° | 59° | 13 | 3.8 in | 12.3 h/day | 15.8 h | 44% | 72% |
| July | 80° | 63° | 10 | 3.3 in | 13.1 h/day | 15.4 h | 33% | 65% |
| August | 80° | 62° | 9 | 3.0 in | 11.7 h/day | 14.1 h | 30% | 68% |
| September | 70° | 55° | 10 | 3.5 in | 10.0 h/day | 12.5 h | 34% | 74% |
| October | 61° | 48° | 11 | 4.1 in | 7.9 h/day | 10.8 h | 35% | 81% |
| November | 50° | 39° | 14 | 4.5 in | 6.0 h/day | 9.4 h | 45% | 85% |
| December | 45° | 34° | 13 | 5.1 in | 5.3 h/day | 8.6 h | 41% | 84% |
Geneva month by month
Each card shows the average high and low. The bar places that month between Geneva's coldest night and warmest afternoon.
January
- Rain
- 13 days
- Sunshine
- 5.4 h
- Daylight
- 9.0 h
- Snow
- 4 days
February
- Rain
- 10 days
- Sunshine
- 7.0 h
- Daylight
- 10.3 h
- Snow
- 2 days
March
- Rain
- 12 days
- Sunshine
- 8.6 h
- Daylight
- 11.8 h
- Snow
- 2 days
April
- Rain
- 11 days
- Sunshine
- 10.3 h
- Daylight
- 13.5 h
- Snow
- 1 day
May
- Rain
- 14 days
- Sunshine
- 10.8 h
- Daylight
- 15.0 h
June
- Rain
- 13 days
- Sunshine
- 12.3 h
- Daylight
- 15.8 h
July
- Rain
- 10 days
- Sunshine
- 13.1 h
- Daylight
- 15.4 h
August
- Rain
- 9 days
- Sunshine
- 11.7 h
- Daylight
- 14.1 h
September
- Rain
- 10 days
- Sunshine
- 10.0 h
- Daylight
- 12.5 h
October
- Rain
- 11 days
- Sunshine
- 7.9 h
- Daylight
- 10.8 h
November
- Rain
- 14 days
- Sunshine
- 6.0 h
- Daylight
- 9.4 h
- Snow
- 2 days
December
- Rain
- 13 days
- Sunshine
- 5.3 h
- Daylight
- 8.6 h
- Snow
- 3 days
Looking for warmer alternatives? Browse warm places by month, or compare Geneva's coolest part of the year: January, December, February.
Seasonal weather under Geneva's sunnier skies
Spring (March through May)
Spring is crisp but comfortable here - highs near 59°F (15°C), nights near 43°F (6°C), and rain falls on around 38 of the 90 days, plus about 3 snowy days.
Summer (June through August)
Summer in Geneva settles into easy warmth, with daytime highs averaging 78°F (26°C) and nights around 61°F (16°C); rain falls on around 33 of the 90 days. Daylight is generous - around 12.4 hours of sun a day.
Fall (September through November)
Fall in Geneva runs cool rather than cold, with daytime highs averaging 60°F (16°C) and nights around 47°F (8°C); rain falls on around 35 of the 90 days.
Winter (December through February)
Through winter, Geneva is chilly: 44°F (7°C) by day, 33°F (0°C) after dark, and rain falls on around 36 of the 90 days, plus about 10 snowy days.
How unusual is Geneva?
- Geneva sits close to the middle of our dataset on most measures: 53°F (12°C) as an annual average, 47.5 inches (1206 mm) of precipitation and 9.0 hours of sun a day.
These comparisons use the same ten-year window for every city in the dataset.
Geneva temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.