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.

meteo-ch.ch Search a municipality…

Home › Graubünden › Rossa

Weather in Rossa

Graubünden, 1392 m · continuously updated

–^°C

– –

Wind: –
Humidity: –
Rain ahead: –
Sunset: –

Temperature · last 4 and next 28 hours

Rossa weather: the next 24 hours

Updated hourly.

Rossa weather hour by hour (48 h)

Rossa 15-day forecast

Two-week trend.

Rossa weekend weather Rain radar

Sun and golden hours

Sunrise –, golden light until –

Sunset –, golden light from –

–

Air quality

–

European index, measured continuously.

UV index

–

Daily maximum — protection advised from 3.

Freezing level

–

Snow settles about 300 m below it.

Around Rossa

Neighbouring municipalities, as the crow flies.

Mesocco7 km Biasca9 km Soazza10 km Calanca12 km Acquarossa13 km Lostallo14 km Serravalle14 km Pollegio15 km

7-day forecast for Rossa

Today (Sunday 27 Sep) in Rossa: partly cloudy, 9 to 18 °C, precipitation 0.0 mm (0 %), wind up to 7 km/h. Tomorrow: fog, 11 to 19 °C.

Day	Weather	Min	Max	Precip.	Wind
Today	partly cloudy	9 °C	18 °C	0.0 mm	7 km/h
Tomorrow	fog	11 °C	19 °C	0.0 mm	8 km/h
Tue 29 Sep	fog	10 °C	16 °C	0.1 mm	7 km/h
Wed 30 Sep	light rain	10 °C	13 °C	0.3 mm	7 km/h
Thu 1 Oct	light rain	10 °C	12 °C	4.7 mm	4 km/h
Fri 2 Oct	fog	11 °C	15 °C	0.0 mm	9 km/h
Sat 3 Oct	fog	9 °C	15 °C	0.0 mm	9 km/h

Forecast updated on 27.09.2026 at 04:37 (Open-Meteo model, elevation 1392 m). The interactive block at the top refreshes hourly and covers 16 days.

No rain expected in Rossa today or tomorrow. The 15-minute detail for the next two hours is shown on demand.

Hourly weather in Rossa

Sunday 27 Sep in Rossa, hour by hour: sunny in the morning, mostly sunny in the afternoon, mostly sunny in the evening. Low 9 °C around 06:00, high 18 °C around 15:00. No rainy hour.

Show the 24-hour table

Time	Weather	Temp.	Wind
00:00	sunny	11 °C	4 km/h
01:00	sunny	11 °C	2 km/h
02:00	sunny	10 °C	2 km/h
03:00	sunny	10 °C	2 km/h
04:00	sunny	10 °C	2 km/h
05:00	sunny	10 °C	2 km/h
06:00	sunny	9 °C	3 km/h
07:00	sunny	9 °C	2 km/h
08:00	sunny	10 °C	2 km/h
09:00	sunny	12 °C	1 km/h
10:00	sunny	14 °C	1 km/h
11:00	mostly sunny	15 °C	2 km/h
12:00	mostly sunny	16 °C	3 km/h
13:00	mostly sunny	17 °C	4 km/h
14:00	partly cloudy	18 °C	6 km/h
15:00	partly cloudy	18 °C	8 km/h
16:00	partly cloudy	18 °C	7 km/h
17:00	mostly sunny	17 °C	5 km/h
18:00	partly cloudy	16 °C	3 km/h
19:00	mostly sunny	14 °C	1 km/h
20:00	mostly sunny	13 °C	0 km/h
21:00	mostly sunny	12 °C	1 km/h
22:00	mostly sunny	13 °C	2 km/h
23:00	mostly sunny	12 °C	2 km/h

Hourly forecast issued 27.09.2026 for Rossa (1392 m), Swiss local time, Open-Meteo model. The interactive block at the top of the page covers 16 days and refreshes every hour.

Rossa weather tomorrow

Tomorrow, Monday 28 Sep, in Rossa: fog, 11 to 19 °C, wind up to 8 km/h. No precipitation expected.

Rossa weekend weather

This weekend in Rossa: Saturday fog, 9 to 15 °C; Sunday partly cloudy, 9 to 18 °C.

Will it rain in Rossa this week?

Yes: 1 day with precipitation is expected in Rossa over the next 7 days, 5.1 mm in total. Wettest day: Thursday 1 Oct (4.7 mm).

The best day to go out in Rossa

The best day of the next 7 in Rossa: Sunday 27 Sep, partly cloudy, up to 18 °C.

The last 7 days in Rossa

From 20 Sep to 26 Sep: 13.0 °C on average, 2.6 °C above the September normal (10.4 °C), 0 mm of precipitation (7-day normal: 39 mm). Warmest day: sunday 20 Sep (20 °C); coolest night: wednesday 23 Sep (5 °C).

Day	Min	Max
Sun 20 Sep	10 °C	20 °C
Mon 21 Sep	11 °C	19 °C
Tue 22 Sep	9 °C	18 °C
Wed 23 Sep	5 °C	15 °C
Thu 24 Sep	8 °C	19 °C
Fri 25 Sep	6 °C	16 °C
Sat 26 Sep	8 °C	18 °C

Open-Meteo analyses of the last 7 days (models and assimilated observations), MeteoSwiss 1991–2020 normals. Updated nightly.

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.

5.9 °CMean annual temperature

1649 mmPrecipitation per year

1514 hSunshine hours per year

171Frost days per year

1Summer days (≥ 25 °C)

JFMAMJJASOND

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.