About Trimmis
Trimmis is a Swiss municipality located in the canton of Graubünden (GR), at 46.905° latitude and 9.594° longitude. The municipality is part of the eastern Alps, alpine climate with snowy winters and cool summers. Also known as Trimmis, Trimmis benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Trimmis
The climate in Trimmis 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 Trimmis and neighboring municipalities.
On this page you will find the detailed weather forecast for Trimmis: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Trimmis: 1991–2020 normals
In Trimmis (745 m), the mean annual temperature is 9.3 °C. The warmest month is July (18.3 °C on average) and the coldest January (0.3 °C). About 941 mm of precipitation falls per year, peaking in August (130 mm) with a minimum in February (46 mm). The sun shines for about 1723 hours a year, mostly in July (206 h). On average there are 74 frost days and 14 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 31.9 °C and the absolute minimum −10.6 °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 | 0.3 °C | 12.0 °C | −10.6 °C | 60 | 96 | 20 | 0 |
| Feb | 1.3 °C | 14.3 °C | −9.3 °C | 46 | 111 | 16 | 0 |
| Mar | 5.2 °C | 19.0 °C | −5.5 °C | 60 | 143 | 8 | 0 |
| Apr | 9.1 °C | 22.7 °C | −2.0 °C | 57 | 157 | 2 | 1 |
| May | 13.3 °C | 27.3 °C | 2.8 °C | 79 | 172 | 0 | 6 |
| Jun | 16.6 °C | 30.6 °C | 6.0 °C | 103 | 188 | 0 | 12 |
| Jul | 18.3 °C | 31.9 °C | 8.4 °C | 111 | 206 | 0 | 17 |
| Aug | 17.9 °C | 31.1 °C | 7.9 °C | 130 | 190 | 0 | 15 |
| Sep | 13.9 °C | 26.0 °C | 4.3 °C | 85 | 157 | 0 | 5 |
| Oct | 10.0 °C | 23.1 °C | −0.6 °C | 73 | 130 | 1 | 1 |
| Nov | 4.9 °C | 18.0 °C | −4.9 °C | 74 | 92 | 8 | 0 |
| Dec | 1.2 °C | 12.6 °C | −8.9 °C | 65 | 81 | 18 | 0 |
| Year | 9.3 °C | 31.9 °C | −10.6 °C | 941 | 1723 | 74 | 56 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Chur (6 km, 556 m), Arosa (14 km, 1878 m), Bad Ragaz (14 km, 497 m), adjusted to the elevation of Trimmis (745 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Trimmis:
- Weather Zizers
- Weather Furna
- Weather Untervaz
- Weather Landquart
- Weather Arosa
- Weather Chur
- Weather Grüsch
- Weather Maienfeld
- Weather Jenaz
- Weather Churwalden
- Weather Malans
- Weather Schiers
→ Nearby cities · Canton Graubünden
Frequently asked questions about weather in Trimmis
What is the weather in Trimmis today?
At the top of the page you will find the current temperature, precipitation and wind in Trimmis, updated in real time.
What is the 15-day forecast for Trimmis?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Trimmis.
Will it rain tomorrow in Trimmis?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Trimmis.
What is the air quality in Trimmis?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Trimmis.
Are there weather alerts for Trimmis?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Trimmis located?
Trimmis sits at around 745 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 Trimmis?
The warmest month in Trimmis is July, averaging 18.3 °C (1991–2020 normal). The coldest is January at 0.3 °C.
How much does it rain in Trimmis per year?
Trimmis receives about 941 mm of precipitation a year. The wettest month is August (130 mm), the driest February (46 mm).
When is the best time to visit Trimmis?
For warmth and sunshine: July (18.3 °C on average, 206 h of sun). The coldest month is January (0.3 °C). Check the 15-day forecast above for your dates.