About Founex
Founex is a Swiss municipality located in the canton of Vaud (VD), at 46.326° latitude and 6.198° longitude. The municipality is part of the Lake Geneva region, temperate climate with lake influence, mild winters and warm summers. Also known as Founex, Founex benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Founex
The climate in Founex 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 Founex and neighboring municipalities.
On this page you will find the detailed weather forecast for Founex: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Founex: 1991–2020 normals
In Founex (420 m), the mean annual temperature is 11.0 °C. The warmest month is July (20.2 °C on average) and the coldest January (2.7 °C). About 1020 mm of precipitation falls per year, peaking in December (104 mm) with a minimum in February (66 mm). The sun shines for about 1947 hours a year, mostly in July (268 h). On average there are 65 frost days and 14 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.2 °C and the absolute minimum −6.3 °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 | 2.7 °C | 12.3 °C | −6.3 °C | 85 | 68 | 18 | 0 |
| Feb | 3.2 °C | 14.1 °C | −5.8 °C | 66 | 105 | 16 | 0 |
| Mar | 6.8 °C | 18.5 °C | −3.1 °C | 70 | 169 | 8 | 0 |
| Apr | 10.3 °C | 22.6 °C | −0.4 °C | 69 | 193 | 1 | 0 |
| May | 14.3 °C | 26.9 °C | 3.9 °C | 86 | 215 | 0 | 4 |
| Jun | 18.1 °C | 30.6 °C | 7.6 °C | 86 | 244 | 0 | 13 |
| Jul | 20.2 °C | 32.2 °C | 10.0 °C | 85 | 268 | 0 | 19 |
| Aug | 19.8 °C | 31.7 °C | 9.4 °C | 84 | 245 | 0 | 17 |
| Sep | 15.7 °C | 26.8 °C | 5.9 °C | 88 | 191 | 0 | 5 |
| Oct | 11.5 °C | 22.0 °C | 1.9 °C | 100 | 125 | 1 | 0 |
| Nov | 6.5 °C | 16.8 °C | −2.3 °C | 97 | 71 | 6 | 0 |
| Dec | 3.4 °C | 13.0 °C | −5.4 °C | 104 | 53 | 15 | 0 |
| Year | 11.0 °C | 32.2 °C | −6.3 °C | 1020 | 1947 | 65 | 58 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Nyon / Changins (9 km, 458 m), Genève / Cointrin (10 km, 411 m), La Dôle (13 km, 1670 m), adjusted to the elevation of Founex (420 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Founex:
- Weather Coppet
- Weather Céligny
- Weather Commugny
- Weather Tannay
- Weather Chavannes-de-Bogis
- Weather Bogis-Bossey
- Weather Crans (VD)
- Weather Mies
- Weather Chavannes-des-Bois
- Weather Hermance
- Weather Versoix
- Weather Arnex-sur-Nyon
Frequently asked questions about weather in Founex
What is the weather in Founex today?
At the top of the page you will find the current temperature, precipitation and wind in Founex, updated in real time.
What is the 15-day forecast for Founex?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Founex.
Will it rain tomorrow in Founex?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Founex.
What is the air quality in Founex?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Founex.
Are there weather alerts for Founex?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Founex located?
Founex sits at around 420 m above sea level in the canton of Vaud. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Founex?
The warmest month in Founex is July, averaging 20.2 °C (1991–2020 normal). The coldest is January at 2.7 °C.
How much does it rain in Founex per year?
Founex receives about 1020 mm of precipitation a year. The wettest month is December (104 mm), the driest February (66 mm).
When is the best time to visit Founex?
For warmth and sunshine: July (20.2 °C on average, 268 h of sun). The coldest month is January (2.7 °C). Check the 15-day forecast above for your dates.