About Cologny
Cologny is a Swiss municipality located in the canton of Geneva (GE), at 46.216° latitude and 6.185° longitude. The municipality is part of the Lake Geneva region, temperate climate with lake influence, mild winters and warm summers. Also known as Cologny, Cologny benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Cologny
The climate in Cologny 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 Cologny and neighboring municipalities.
On this page you will find the detailed weather forecast for Cologny: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Cologny: 1991–2020 normals
In Cologny (466 m), the mean annual temperature is 10.8 °C. The warmest month is July (20.3 °C on average) and the coldest January (2.1 °C). About 956 mm of precipitation falls per year, peaking in October (96 mm) with a minimum in February (58 mm). The sun shines for about 1932 hours a year, mostly in July (271 h). On average there are 68 frost days and 18 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.9 °C and the absolute minimum −7.0 °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 | 2.1 °C | 12.0 °C | −7.0 °C | 75 | 64 | 19 | 0 |
| Feb | 2.8 °C | 14.2 °C | −6.4 °C | 58 | 101 | 17 | 0 |
| Mar | 6.6 °C | 19.2 °C | −3.7 °C | 64 | 167 | 8 | 0 |
| Apr | 10.3 °C | 23.3 °C | −0.7 °C | 67 | 192 | 1 | 1 |
| May | 14.3 °C | 27.6 °C | 3.3 °C | 80 | 215 | 0 | 4 |
| Jun | 18.2 °C | 31.2 °C | 7.2 °C | 83 | 247 | 0 | 14 |
| Jul | 20.3 °C | 32.9 °C | 9.5 °C | 80 | 271 | 0 | 21 |
| Aug | 19.8 °C | 32.4 °C | 8.8 °C | 82 | 246 | 0 | 18 |
| Sep | 15.5 °C | 27.4 °C | 5.2 °C | 88 | 190 | 0 | 6 |
| Oct | 11.2 °C | 22.0 °C | 1.1 °C | 96 | 121 | 1 | 0 |
| Nov | 6.0 °C | 16.6 °C | −3.4 °C | 90 | 68 | 7 | 0 |
| Dec | 2.8 °C | 12.5 °C | −6.1 °C | 92 | 50 | 15 | 0 |
| Year | 10.8 °C | 32.9 °C | −7.0 °C | 956 | 1932 | 68 | 64 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Genève / Cointrin (6 km, 411 m), Nyon / Changins (21 km, 458 m), La Dôle (24 km, 1670 m), adjusted to the elevation of Cologny (466 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Cologny:
- Weather Vandoeuvres
- Weather Chêne-Bougeries
- Weather Chêne-Bourg
- Weather Thônex
- Weather Genève
- Weather Puplinge
- Weather Choulex
- Weather Collonge-Bellerive
- Weather Pregny-Chambésy
- Weather Meinier
- Weather Le Grand-Saconnex
- Weather Veyrier
→ Nearby cities · Canton Geneva
Frequently asked questions about weather in Cologny
What is the weather in Cologny today?
At the top of the page you will find the current temperature, precipitation and wind in Cologny, updated in real time.
What is the 15-day forecast for Cologny?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Cologny.
Will it rain tomorrow in Cologny?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Cologny.
What is the air quality in Cologny?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Cologny.
Are there weather alerts for Cologny?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Cologny located?
Cologny sits at around 466 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 Cologny?
The warmest month in Cologny is July, averaging 20.3 °C (1991–2020 normal). The coldest is January at 2.1 °C.
How much does it rain in Cologny per year?
Cologny receives about 956 mm of precipitation a year. The wettest month is October (96 mm), the driest February (58 mm).
When is the best time to visit Cologny?
For warmth and sunshine: July (20.3 °C on average, 271 h of sun). The coldest month is January (2.1 °C). Check the 15-day forecast above for your dates.