About Lonay
Lonay is a Swiss municipality located in the canton of Vaud (VD), at 46.530° latitude and 6.519° longitude. The municipality is part of the Lake Geneva region, temperate climate with lake influence, mild winters and warm summers. Also known as Lonay, Lonay benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Lonay
The climate in Lonay 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 Lonay and neighboring municipalities.
On this page you will find the detailed weather forecast for Lonay: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Lonay: 1991–2020 normals
In Lonay (440 m), the mean annual temperature is 11.1 °C. The warmest month is July (20.4 °C on average) and the coldest January (2.6 °C). About 1050 mm of precipitation falls per year, peaking in October (103 mm) with a minimum in February (60 mm). The sun shines for about 1951 hours a year, mostly in July (259 h). On average there are 48 frost days and 9 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 31.8 °C and the absolute minimum −5.7 °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 | 2.6 °C | 11.3 °C | −5.7 °C | 72 | 75 | 14 | 0 |
| Feb | 3.2 °C | 13.0 °C | −5.4 °C | 60 | 107 | 12 | 0 |
| Mar | 6.9 °C | 18.1 °C | −2.5 °C | 65 | 168 | 6 | 0 |
| Apr | 10.5 °C | 22.5 °C | 0.4 °C | 76 | 192 | 1 | 0 |
| May | 14.6 °C | 27.0 °C | 4.8 °C | 102 | 210 | 0 | 3 |
| Jun | 18.4 °C | 30.4 °C | 8.4 °C | 99 | 240 | 0 | 12 |
| Jul | 20.4 °C | 31.8 °C | 10.9 °C | 95 | 259 | 0 | 18 |
| Aug | 20.0 °C | 31.1 °C | 10.3 °C | 102 | 241 | 0 | 16 |
| Sep | 15.8 °C | 25.9 °C | 6.7 °C | 91 | 192 | 0 | 3 |
| Oct | 11.5 °C | 21.0 °C | 2.9 °C | 103 | 132 | 0 | 0 |
| Nov | 6.5 °C | 16.0 °C | −1.3 °C | 92 | 79 | 4 | 0 |
| Dec | 3.3 °C | 11.8 °C | −4.7 °C | 93 | 56 | 11 | 0 |
| Year | 11.1 °C | 31.8 °C | −5.7 °C | 1050 | 1951 | 48 | 51 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Pully (12 km, 456 m), Mathod (23 km, 435 m), Nyon / Changins (27 km, 458 m), adjusted to the elevation of Lonay (440 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Lonay:
- Weather Préverenges
- Weather Denges
- Weather Echandens
- Weather Echichens
- Weather Bremblens
- Weather Morges
- Weather Romanel-sur-Morges
- Weather Bussigny
- Weather Chigny
- Weather Vufflens-le-Château
- Weather Ecublens (VD)
- Weather Vaux-sur-Morges
Frequently asked questions about weather in Lonay
What is the weather in Lonay today?
At the top of the page you will find the current temperature, precipitation and wind in Lonay, updated in real time.
What is the 15-day forecast for Lonay?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Lonay.
Will it rain tomorrow in Lonay?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Lonay.
What is the air quality in Lonay?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Lonay.
Are there weather alerts for Lonay?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Lonay located?
Lonay sits at around 440 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 Lonay?
The warmest month in Lonay is July, averaging 20.4 °C (1991–2020 normal). The coldest is January at 2.6 °C.
How much does it rain in Lonay per year?
Lonay receives about 1050 mm of precipitation a year. The wettest month is October (103 mm), the driest February (60 mm).
When is the best time to visit Lonay?
For warmth and sunshine: July (20.4 °C on average, 259 h of sun). The coldest month is January (2.6 °C). Check the 15-day forecast above for your dates.