About Collonge-Bellerive
Collonge-Bellerive is a Swiss municipality located in the canton of Geneva (GE), at 46.247° latitude and 6.205° longitude. The municipality is part of the Lake Geneva region, temperate climate with lake influence, mild winters and warm summers. Also known as Collonge-Bellerive, Collonge-Bellerive benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Collonge-Bellerive
The climate in Collonge-Bellerive is characteristic of the Lake Geneva region, temperate climate with lake influence, mild winters and warm summers. Temperatures, precipitation and wind conditions vary throughout the year with local features linked to altitude and surrounding terrain. Our data comes from official weather stations and real-time Netatmo sensors for Collonge-Bellerive and neighboring municipalities.
On this page you will find the detailed weather forecast for Collonge-Bellerive: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Collonge-Bellerive: 1991–2020 normals
In Collonge-Bellerive (394 m), the mean annual temperature is 11.2 °C. The warmest month is July (20.7 °C on average) and the coldest January (2.5 °C). About 946 mm of precipitation falls per year, peaking in October (95 mm) with a minimum in February (58 mm). The sun shines for about 1932 hours a year, mostly in July (270 h). On average there are 68 frost days and 17 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 33.2 °C and the absolute minimum −6.6 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) | Sunshine (h) | Frost days | Summer days |
|---|---|---|---|---|---|---|---|
| Jan | 2.5 °C | 12.4 °C | −6.6 °C | 75 | 65 | 19 | 0 |
| Feb | 3.2 °C | 14.6 °C | −6.0 °C | 58 | 101 | 17 | 0 |
| Mar | 7.0 °C | 19.5 °C | −3.3 °C | 63 | 167 | 8 | 0 |
| Apr | 10.6 °C | 23.6 °C | −0.3 °C | 66 | 192 | 1 | 1 |
| May | 14.7 °C | 27.9 °C | 3.7 °C | 79 | 215 | 0 | 4 |
| Jun | 18.6 °C | 31.5 °C | 7.6 °C | 82 | 247 | 0 | 14 |
| Jul | 20.7 °C | 33.2 °C | 9.9 °C | 79 | 270 | 0 | 21 |
| Aug | 20.2 °C | 32.7 °C | 9.3 °C | 81 | 246 | 0 | 18 |
| Sep | 15.9 °C | 27.7 °C | 5.6 °C | 87 | 190 | 0 | 6 |
| Oct | 11.6 °C | 22.4 °C | 1.6 °C | 95 | 121 | 1 | 0 |
| Nov | 6.4 °C | 17.0 °C | −2.9 °C | 89 | 68 | 7 | 0 |
| Dec | 3.3 °C | 12.9 °C | −5.6 °C | 92 | 50 | 15 | 0 |
| Year | 11.2 °C | 33.2 °C | −6.6 °C | 946 | 1932 | 68 | 63 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Genève / Cointrin (6 km, 411 m), Nyon / Changins (17 km, 458 m), La Dôle (21 km, 1670 m), adjusted to the elevation of Collonge-Bellerive (394 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Collonge-Bellerive:
- Weather Meinier
- Weather Corsier (GE)
- Weather Vandoeuvres
- Weather Choulex
- Weather Cologny
- Weather Anières
- Weather Genthod
- Weather Puplinge
- Weather Bellevue
- Weather Presinge
- Weather Chêne-Bougeries
- Weather Pregny-Chambésy
→ Nearby cities · Canton Geneva
Frequently asked questions about weather in Collonge-Bellerive
What is the weather in Collonge-Bellerive today?
At the top of the page you will find the current temperature, precipitation and wind in Collonge-Bellerive, updated in real time.
What is the 15-day forecast for Collonge-Bellerive?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Collonge-Bellerive.
Will it rain tomorrow in Collonge-Bellerive?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Collonge-Bellerive.
What is the air quality in Collonge-Bellerive?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Collonge-Bellerive.
Are there weather alerts for Collonge-Bellerive?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Collonge-Bellerive located?
Collonge-Bellerive sits at around 394 m above sea level in the canton of Geneva. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Collonge-Bellerive?
The warmest month in Collonge-Bellerive is July, averaging 20.7 °C (1991–2020 normal). The coldest is January at 2.5 °C.
How much does it rain in Collonge-Bellerive per year?
Collonge-Bellerive receives about 946 mm of precipitation a year. The wettest month is October (95 mm), the driest February (58 mm).
When is the best time to visit Collonge-Bellerive?
For warmth and sunshine: July (20.7 °C on average, 270 h of sun). The coldest month is January (2.5 °C). Check the 15-day forecast above for your dates.