About Grens
Grens is a Swiss municipality located in the canton of Vaud (VD), at 46.396° latitude and 6.191° longitude. The municipality is part of the Lake Geneva region, temperate climate with lake influence, mild winters and warm summers. Also known as Grens, Grens benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Grens
The climate in Grens 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 Grens and neighboring municipalities.
On this page you will find the detailed weather forecast for Grens: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Grens: 1991–2020 normals
In Grens (497 m), the mean annual temperature is 10.6 °C. The warmest month is July (19.8 °C on average) and the coldest January (2.1 °C). About 1037 mm of precipitation falls per year, peaking in December (106 mm) with a minimum in February (68 mm). The sun shines for about 1959 hours a year, mostly in July (266 h). On average there are 62 frost days and 11 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 31.7 °C and the absolute minimum −6.7 °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 | 11.5 °C | −6.7 °C | 87 | 71 | 18 | 0 |
| Feb | 2.7 °C | 13.3 °C | −6.1 °C | 68 | 108 | 15 | 0 |
| Mar | 6.4 °C | 17.8 °C | −3.3 °C | 69 | 171 | 7 | 0 |
| Apr | 9.9 °C | 21.9 °C | −0.7 °C | 70 | 193 | 1 | 0 |
| May | 13.9 °C | 26.3 °C | 3.6 °C | 89 | 214 | 0 | 3 |
| Jun | 17.7 °C | 30.0 °C | 7.3 °C | 86 | 243 | 0 | 12 |
| Jul | 19.8 °C | 31.7 °C | 9.8 °C | 87 | 266 | 0 | 18 |
| Aug | 19.4 °C | 31.2 °C | 9.1 °C | 86 | 244 | 0 | 16 |
| Sep | 15.3 °C | 26.2 °C | 5.7 °C | 88 | 192 | 0 | 4 |
| Oct | 11.0 °C | 21.2 °C | 1.6 °C | 102 | 127 | 1 | 0 |
| Nov | 5.9 °C | 15.9 °C | −2.4 °C | 99 | 74 | 6 | 0 |
| Dec | 2.8 °C | 12.1 °C | −5.8 °C | 106 | 56 | 14 | 0 |
| Year | 10.6 °C | 31.7 °C | −6.7 °C | 1037 | 1959 | 62 | 54 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Nyon / Changins (3 km, 458 m), La Dôle (8 km, 1670 m), Genève / Cointrin (17 km, 411 m), adjusted to the elevation of Grens (497 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Grens:
- Weather Signy-Avenex
- Weather Borex
- Weather Eysins
- Weather Trélex
- Weather Arnex-sur-Nyon
- Weather Crassier
- Weather Nyon
- Weather La Rippe
- Weather Duillier
- Weather Chéserex
- Weather Crans (VD)
- Weather Givrins
Frequently asked questions about weather in Grens
What is the weather in Grens today?
At the top of the page you will find the current temperature, precipitation and wind in Grens, updated in real time.
What is the 15-day forecast for Grens?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Grens.
Will it rain tomorrow in Grens?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Grens.
What is the air quality in Grens?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Grens.
Are there weather alerts for Grens?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Grens located?
Grens sits at around 497 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 Grens?
The warmest month in Grens is July, averaging 19.8 °C (1991–2020 normal). The coldest is January at 2.1 °C.
How much does it rain in Grens per year?
Grens receives about 1037 mm of precipitation a year. The wettest month is December (106 mm), the driest February (68 mm).
When is the best time to visit Grens?
For warmth and sunshine: July (19.8 °C on average, 266 h of sun). The coldest month is January (2.1 °C). Check the 15-day forecast above for your dates.