About Bardonnex
Bardonnex is a Swiss municipality located in the canton of Geneva (GE), at 46.150° latitude and 6.118° longitude. The municipality is part of the Lake Geneva region, temperate climate with lake influence, mild winters and warm summers. Also known as Bardonnex, Bardonnex benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Bardonnex
The climate in Bardonnex 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 Bardonnex and neighboring municipalities.
On this page you will find the detailed weather forecast for Bardonnex: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Bardonnex: 1991–2020 normals
In Bardonnex (468 m), the mean annual temperature is 10.8 °C. The warmest month is July (20.2 °C on average) and the coldest January (2.2 °C). About 977 mm of precipitation falls per year, peaking in October (98 mm) with a minimum in February (61 mm). The sun shines for about 1933 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 32.7 °C and the absolute minimum −6.9 °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 | 2.2 °C | 12.1 °C | −6.9 °C | 78 | 65 | 19 | 0 |
| Feb | 2.8 °C | 14.2 °C | −6.4 °C | 61 | 102 | 17 | 0 |
| Mar | 6.5 °C | 19.0 °C | −3.7 °C | 66 | 167 | 8 | 0 |
| Apr | 10.2 °C | 23.1 °C | −0.7 °C | 68 | 192 | 1 | 1 |
| May | 14.2 °C | 27.4 °C | 3.3 °C | 81 | 215 | 0 | 4 |
| Jun | 18.1 °C | 31.0 °C | 7.2 °C | 84 | 246 | 0 | 14 |
| Jul | 20.2 °C | 32.7 °C | 9.5 °C | 82 | 270 | 0 | 21 |
| Aug | 19.7 °C | 32.2 °C | 8.9 °C | 83 | 246 | 0 | 18 |
| Sep | 15.5 °C | 27.2 °C | 5.3 °C | 89 | 190 | 0 | 6 |
| Oct | 11.2 °C | 22.0 °C | 1.2 °C | 98 | 122 | 1 | 0 |
| Nov | 6.1 °C | 16.7 °C | −3.2 °C | 92 | 68 | 6 | 0 |
| Dec | 2.9 °C | 12.6 °C | −6.0 °C | 96 | 50 | 15 | 0 |
| Year | 10.8 °C | 32.7 °C | −6.9 °C | 977 | 1933 | 68 | 63 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Genève / Cointrin (11 km, 411 m), Nyon / Changins (29 km, 458 m), La Dôle (31 km, 1670 m), adjusted to the elevation of Bardonnex (468 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Bardonnex:
- Weather Perly-Certoux
- Weather Confignon
- Weather Onex
- Weather Plan-les-Ouates
- Weather Lancy
- Weather Troinex
- Weather Carouge (GE)
- Weather Bernex
- Weather Veyrier
- Weather Soral
- Weather Genève
- Weather Aire-la-Ville
→ Nearby cities · Canton Geneva
Frequently asked questions about weather in Bardonnex
What is the weather in Bardonnex today?
At the top of the page you will find the current temperature, precipitation and wind in Bardonnex, updated in real time.
What is the 15-day forecast for Bardonnex?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Bardonnex.
Will it rain tomorrow in Bardonnex?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Bardonnex.
What is the air quality in Bardonnex?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Bardonnex.
Are there weather alerts for Bardonnex?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Bardonnex located?
Bardonnex sits at around 468 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 Bardonnex?
The warmest month in Bardonnex is July, averaging 20.2 °C (1991–2020 normal). The coldest is January at 2.2 °C.
How much does it rain in Bardonnex per year?
Bardonnex receives about 977 mm of precipitation a year. The wettest month is October (98 mm), the driest February (61 mm).
When is the best time to visit Bardonnex?
For warmth and sunshine: July (20.2 °C on average, 270 h of sun). The coldest month is January (2.2 °C). Check the 15-day forecast above for your dates.