About Romanel-sur-Lausanne
Romanel-sur-Lausanne is a Swiss municipality located in the canton of Vaud (VD), at 46.564° latitude and 6.608° longitude. The municipality is part of the Lake Geneva region, temperate climate with lake influence, mild winters and warm summers. Also known as Romanel-sur-Lausanne, Romanel-sur-Lausanne benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Romanel-sur-Lausanne
The climate in Romanel-sur-Lausanne 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 Romanel-sur-Lausanne and neighboring municipalities.
On this page you will find the detailed weather forecast for Romanel-sur-Lausanne: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Romanel-sur-Lausanne: 1991–2020 normals
In Romanel-sur-Lausanne (606 m), the mean annual temperature is 10.3 °C. The warmest month is July (19.5 °C on average) and the coldest January (1.9 °C). About 1128 mm of precipitation falls per year, peaking in May (111 mm) with a minimum in February (64 mm). The sun shines for about 1958 hours a year, mostly in July (259 h). On average there are 42 frost days and 8 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 30.5 °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 | 1.9 °C | 10.4 °C | −6.3 °C | 76 | 76 | 12 | 0 |
| Feb | 2.5 °C | 12.0 °C | −5.9 °C | 64 | 108 | 10 | 0 |
| Mar | 6.0 °C | 17.0 °C | −3.1 °C | 71 | 169 | 5 | 0 |
| Apr | 9.7 °C | 21.4 °C | −0.2 °C | 83 | 193 | 1 | 0 |
| May | 13.7 °C | 25.9 °C | 4.3 °C | 111 | 211 | 0 | 3 |
| Jun | 17.5 °C | 29.3 °C | 7.8 °C | 107 | 240 | 0 | 11 |
| Jul | 19.5 °C | 30.5 °C | 10.5 °C | 102 | 259 | 0 | 18 |
| Aug | 19.1 °C | 29.9 °C | 9.9 °C | 110 | 241 | 0 | 15 |
| Sep | 15.0 °C | 24.7 °C | 6.3 °C | 98 | 191 | 0 | 3 |
| Oct | 10.8 °C | 20.1 °C | 2.4 °C | 110 | 133 | 0 | 0 |
| Nov | 5.8 °C | 15.2 °C | −1.8 °C | 98 | 80 | 3 | 0 |
| Dec | 2.7 °C | 11.0 °C | −5.2 °C | 98 | 57 | 10 | 0 |
| Year | 10.3 °C | 30.5 °C | −6.3 °C | 1128 | 1958 | 42 | 51 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Pully (7 km, 456 m), Mathod (19 km, 435 m), Bullet / La Frétaz (31 km, 1205 m), adjusted to the elevation of Romanel-sur-Lausanne (606 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Romanel-sur-Lausanne:
- Weather Jouxtens-Mézery
- Weather Cheseaux-sur-Lausanne
- Weather Le Mont-sur-Lausanne
- Weather Crissier
- Weather Prilly
- Weather Cugy (VD)
- Weather Villars-Sainte-Croix
- Weather Morrens (VD)
- Weather Mex (VD)
- Weather Renens (VD)
- Weather Etagnières
- Weather Sullens
Frequently asked questions about weather in Romanel-sur-Lausanne
What is the weather in Romanel-sur-Lausanne today?
At the top of the page you will find the current temperature, precipitation and wind in Romanel-sur-Lausanne, updated in real time.
What is the 15-day forecast for Romanel-sur-Lausanne?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Romanel-sur-Lausanne.
Will it rain tomorrow in Romanel-sur-Lausanne?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Romanel-sur-Lausanne.
What is the air quality in Romanel-sur-Lausanne?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Romanel-sur-Lausanne.
Are there weather alerts for Romanel-sur-Lausanne?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Romanel-sur-Lausanne located?
Romanel-sur-Lausanne sits at around 606 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 Romanel-sur-Lausanne?
The warmest month in Romanel-sur-Lausanne is July, averaging 19.5 °C (1991–2020 normal). The coldest is January at 1.9 °C.
How much does it rain in Romanel-sur-Lausanne per year?
Romanel-sur-Lausanne receives about 1128 mm of precipitation a year. The wettest month is May (111 mm), the driest February (64 mm).
When is the best time to visit Romanel-sur-Lausanne?
For warmth and sunshine: July (19.5 °C on average, 259 h of sun). The coldest month is January (1.9 °C). Check the 15-day forecast above for your dates.