Lake Cauma
Lake Cauma is a Swiss lake (Graubünden) at 997 m, covering 0.1 km² with a maximum depth of 30 m. Typical winds: abrité, vents faibles. Main shores and access points: Flims (Lag la Cauma), baignade, Crestasee. The weather above is computed over the middle of the lake; the “Wind on the lake” section details hourly speed, gusts and direction — for sailing, windsurfing, paddling, fishing or swimming.
Climate of Lake Cauma: 1991–2020 normals
In Lake Cauma (997 m), the mean annual temperature is 7.6 °C. The warmest month is July (15.8 °C on average) and the coldest January (0.1 °C). About 1370 mm of precipitation falls per year, peaking in August (174 mm) with a minimum in February (75 mm). On average there are 113 frost days and 1 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 26.7 °C and the absolute minimum −11.1 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) | Frost days | Summer days |
|---|---|---|---|---|---|---|
| Jan | 0.1 °C | 12.2 °C | −11.1 °C | 88 | 25 | 0 |
| Feb | 0.2 °C | 11.0 °C | −10.6 °C | 75 | 22 | 0 |
| Mar | 2.8 °C | 13.3 °C | −8.4 °C | 95 | 16 | 0 |
| Apr | 5.9 °C | 16.2 °C | −4.6 °C | 88 | 8 | 0 |
| May | 10.1 °C | 20.9 °C | 0.7 °C | 119 | 1 | 1 |
| Jun | 13.9 °C | 25.4 °C | 4.3 °C | 143 | 0 | 5 |
| Jul | 15.8 °C | 26.7 °C | 6.8 °C | 160 | 0 | 7 |
| Aug | 15.7 °C | 26.0 °C | 6.5 °C | 174 | 0 | 6 |
| Sep | 12.1 °C | 22.1 °C | 3.0 °C | 123 | 0 | 0 |
| Oct | 9.0 °C | 19.3 °C | −1.5 °C | 102 | 4 | 0 |
| Nov | 4.1 °C | 15.1 °C | −6.3 °C | 105 | 14 | 0 |
| Dec | 1.2 °C | 11.5 °C | −9.6 °C | 99 | 24 | 0 |
| Year | 7.6 °C | 26.7 °C | −11.1 °C | 1370 | 113 | 20 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Crap Masegn (9 km, 2468 m), Elm (14 km, 958 m), Chur (19 km, 556 m), adjusted to the elevation of Lake Cauma (997 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Swiss lakes
- Weather Lake Klöntal (33 km · 848 m)
- Weather Lake Walen (34 km · 419 m)
- Weather Lake Davos (43 km · 1560 m)
- Weather Lake Sils (56 km · 1797 m)
- Weather Lake Silvaplana (56 km · 1791 m)
- Weather Lake St. Moritz (56 km · 1768 m)
Nearby municipalities
- Weather Laax (2 km)
- Weather Sagogn (2 km)
- Weather Flims (4 km)
- Weather Bonaduz (5 km)
- Weather Safiental (5 km)
- Weather Schluein (6 km)
- Weather Trin (7 km)
- Weather Falera (8 km)
Frequently asked questions about the weather: Lake Cauma
What is the wind like on Lake Cauma today?
The “Wind on the lake” section shows hourly average wind speed, gusts and direction for the next 24 hours, computed over the lake (997 m).
Can you swim in Lake Cauma?
At 997 m the water stays cold all year (often below 15 °C in summer): swimming is for the brave, mostly in July–August. Check the air temperature, sunshine and UV index above to pick your slot.
What are the typical winds on Lake Cauma?
Characteristic winds: abrité, vents faibles. Storm warnings on Swiss lakes are signalled by flashing lights (40 flashes/min = caution, 90 = storm).
What is the warmest month in Lake Cauma?
The warmest month in Lake Cauma is July, averaging 15.8 °C (1991–2020 normal). The coldest is January at 0.1 °C.
How much does it rain in Lake Cauma per year?
Lake Cauma receives about 1370 mm of precipitation a year. The wettest month is August (174 mm), the driest February (75 mm).
When is the best time to visit Lake Cauma?
For warmth and sunshine: July (15.8 °C on average, — h of sun). The coldest month is January (0.1 °C). Check the 15-day forecast above for your dates.