About Rossa
Rossa is a Swiss municipality located in the canton of Graubünden (GR), at 46.409° latitude and 9.131° longitude. The municipality is part of the eastern Alps, alpine climate with snowy winters and cool summers. Also known as Rossa, Rossa benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Rossa
The climate in Rossa is characteristic of the eastern Alps, alpine climate with snowy winters and cool 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 Rossa and neighboring municipalities.
On this page you will find the detailed weather forecast for Rossa: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Rossa: 1991–2020 normals
In Rossa (1392 m), the mean annual temperature is 5.9 °C. The warmest month is July (14.6 °C on average) and the coldest January (−1.8 °C). About 1649 mm of precipitation falls per year, peaking in August (191 mm) with a minimum in February (59 mm). The sun shines for about 1514 hours a year, mostly in July (167 h). On average there are 171 frost days per year. The mean monthly maximum reaches 24.8 °C and the absolute minimum −12.9 °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 | −1.8 °C | 9.5 °C | −12.9 °C | 77 | 100 | 30 | 0 |
| Feb | −1.5 °C | 10.1 °C | −11.8 °C | 59 | 111 | 27 | 0 |
| Mar | 1.4 °C | 12.7 °C | −9.4 °C | 80 | 145 | 27 | 0 |
| Apr | 4.4 °C | 15.5 °C | −5.4 °C | 134 | 132 | 18 | 0 |
| May | 8.6 °C | 20.1 °C | −0.2 °C | 169 | 132 | 4 | 0 |
| Jun | 12.6 °C | 24.2 °C | 3.3 °C | 172 | 149 | 0 | 0 |
| Jul | 14.6 °C | 24.8 °C | 5.9 °C | 162 | 167 | 0 | 0 |
| Aug | 14.3 °C | 24.6 °C | 5.2 °C | 191 | 158 | 0 | 1 |
| Sep | 10.4 °C | 20.7 °C | 1.6 °C | 166 | 137 | 1 | 0 |
| Oct | 6.5 °C | 17.5 °C | −2.6 °C | 180 | 112 | 11 | 0 |
| Nov | 2.0 °C | 13.5 °C | −7.5 °C | 171 | 83 | 23 | 0 |
| Dec | −1.0 °C | 10.0 °C | −11.5 °C | 88 | 88 | 30 | 0 |
| Year | 5.9 °C | 24.8 °C | −12.9 °C | 1649 | 1514 | 171 | 1 |
Source: MeteoSwiss open data (1991–2020 normals) — stations S. Bernardino (7 km, 1639 m), Matro (16 km, 2171 m), Acquarossa / Comprovasco (16 km, 575 m), adjusted to the elevation of Rossa (1392 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Rossa:
- Weather Mesocco
- Weather Biasca
- Weather Soazza
- Weather Calanca
- Weather Acquarossa
- Weather Lostallo
- Weather Serravalle
- Weather Pollegio
- Weather Santa Maria in Calanca
- Weather Buseno
- Weather Faido
- Weather Giornico
→ Nearby cities · Canton Graubünden
Frequently asked questions about weather in Rossa
What is the weather in Rossa today?
At the top of the page you will find the current temperature, precipitation and wind in Rossa, updated in real time.
What is the 15-day forecast for Rossa?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Rossa.
Will it rain tomorrow in Rossa?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Rossa.
What is the air quality in Rossa?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Rossa.
Are there weather alerts for Rossa?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Rossa located?
Rossa sits at around 1392 m above sea level in the canton of Graubünden. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Rossa?
The warmest month in Rossa is July, averaging 14.6 °C (1991–2020 normal). The coldest is January at −1.8 °C.
How much does it rain in Rossa per year?
Rossa receives about 1649 mm of precipitation a year. The wettest month is August (191 mm), the driest February (59 mm).
When is the best time to visit Rossa?
For warmth and sunshine: July (14.6 °C on average, 167 h of sun). The coldest month is January (−1.8 °C). Check the 15-day forecast above for your dates.