About Perroy
Perroy is a Swiss municipality located in the canton of Vaud (VD), at 46.471° latitude and 6.358° longitude. The municipality is part of the Lake Geneva region, temperate climate with lake influence, mild winters and warm summers. Also known as Perroy, Perroy benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Perroy
The climate in Perroy 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 Perroy and neighboring municipalities.
On this page you will find the detailed weather forecast for Perroy: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Perroy: 1991–2020 normals
In Perroy (423 m), the mean annual temperature is 11.1 °C. The warmest month is July (20.1 °C on average) and the coldest January (2.9 °C). About 1073 mm of precipitation falls per year, peaking in December (108 mm) with a minimum in February (70 mm). The sun shines for about 1962 hours a year, mostly in July (265 h). On average there are 56 frost days and 10 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 31.6 °C and the absolute minimum −5.8 °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 | 2.9 °C | 12.1 °C | −5.8 °C | 88 | 73 | 16 | 0 |
| Feb | 3.4 °C | 13.6 °C | −5.4 °C | 70 | 108 | 14 | 0 |
| Mar | 6.8 °C | 17.9 °C | −2.6 °C | 73 | 171 | 6 | 0 |
| Apr | 10.3 °C | 22.1 °C | −0.0 °C | 73 | 193 | 1 | 0 |
| May | 14.3 °C | 26.5 °C | 4.3 °C | 94 | 214 | 0 | 3 |
| Jun | 18.0 °C | 30.1 °C | 8.0 °C | 90 | 242 | 0 | 12 |
| Jul | 20.1 °C | 31.6 °C | 10.5 °C | 91 | 265 | 0 | 18 |
| Aug | 19.8 °C | 31.1 °C | 10.0 °C | 90 | 244 | 0 | 16 |
| Sep | 15.8 °C | 26.3 °C | 6.5 °C | 90 | 192 | 0 | 4 |
| Oct | 11.6 °C | 21.7 °C | 2.5 °C | 104 | 129 | 0 | 0 |
| Nov | 6.7 °C | 16.6 °C | −1.6 °C | 101 | 75 | 5 | 0 |
| Dec | 3.6 °C | 12.9 °C | −4.9 °C | 108 | 56 | 13 | 0 |
| Year | 11.1 °C | 31.6 °C | −5.8 °C | 1073 | 1962 | 56 | 53 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Nyon / Changins (13 km, 458 m), La Dôle (20 km, 1670 m), Pully (24 km, 456 m), adjusted to the elevation of Perroy (423 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Perroy:
- Weather Féchy
- Weather Bougy-Villars
- Weather Mont-sur-Rolle
- Weather Rolle
- Weather Allaman
- Weather Aubonne
- Weather Essertines-sur-Rolle
- Weather Tartegnin
- Weather Buchillon
- Weather Gilly
- Weather Lavigny
- Weather Bursinel
Frequently asked questions about weather in Perroy
What is the weather in Perroy today?
At the top of the page you will find the current temperature, precipitation and wind in Perroy, updated in real time.
What is the 15-day forecast for Perroy?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Perroy.
Will it rain tomorrow in Perroy?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Perroy.
What is the air quality in Perroy?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Perroy.
Are there weather alerts for Perroy?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Perroy located?
Perroy sits at around 423 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 Perroy?
The warmest month in Perroy is July, averaging 20.1 °C (1991–2020 normal). The coldest is January at 2.9 °C.
How much does it rain in Perroy per year?
Perroy receives about 1073 mm of precipitation a year. The wettest month is December (108 mm), the driest February (70 mm).
When is the best time to visit Perroy?
For warmth and sunshine: July (20.1 °C on average, 265 h of sun). The coldest month is January (2.9 °C). Check the 15-day forecast above for your dates.