Lake Poschiavo
Lake Poschiavo is a Swiss lake (Graubünden) at 962 m, covering 2 km² with a maximum depth of 85 m. Typical winds: brezza di valle. Main shores and access points: Le Prese, Miralago, Poschiavo, Brusio. 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 Poschiavo: 1991–2020 normals
In Lake Poschiavo (962 m), the mean annual temperature is 8.2 °C. The warmest month is July (17.0 °C on average) and the coldest January (−0.4 °C). About 1027 mm of precipitation falls per year, peaking in October (123 mm) with a minimum in February (37 mm). The sun shines for about 1514 hours a year, mostly in July (175 h). On average there are 134 frost days and 1 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 27.9 °C and the absolute minimum −11.5 °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 | −0.4 °C | 11.5 °C | −11.5 °C | 52 | 98 | 29 | 0 |
| Feb | 0.4 °C | 12.6 °C | −11.4 °C | 37 | 107 | 26 | 0 |
| Mar | 3.9 °C | 16.1 °C | −7.8 °C | 48 | 139 | 20 | 0 |
| Apr | 7.4 °C | 19.3 °C | −4.5 °C | 76 | 134 | 8 | 0 |
| May | 11.5 °C | 23.7 °C | 0.7 °C | 92 | 144 | 1 | 0 |
| Jun | 15.3 °C | 27.7 °C | 3.9 °C | 110 | 159 | 0 | 6 |
| Jul | 17.0 °C | 27.9 °C | 6.4 °C | 102 | 175 | 0 | 9 |
| Aug | 16.7 °C | 27.8 °C | 6.0 °C | 109 | 158 | 0 | 8 |
| Sep | 12.7 °C | 23.3 °C | 2.2 °C | 98 | 126 | 0 | 0 |
| Oct | 8.8 °C | 19.8 °C | −1.8 °C | 123 | 109 | 5 | 0 |
| Nov | 4.2 °C | 15.2 °C | −6.2 °C | 116 | 84 | 17 | 0 |
| Dec | 0.7 °C | 11.8 °C | −10.8 °C | 64 | 81 | 27 | 0 |
| Year | 8.2 °C | 27.9 °C | −11.5 °C | 1027 | 1514 | 134 | 23 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Poschiavo / Robbia (8 km, 1078 m), Passo del Bernina (15 km, 2260 m), Piz Corvatsch (25 km, 3294 m), adjusted to the elevation of Lake Poschiavo (962 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Swiss lakes
- Weather Lake Silvaplana (29 km · 1791 m)
- Weather Lake St. Moritz (29 km · 1768 m)
- Weather Lake Sils (31 km · 1797 m)
- Weather Lake Davos (63 km · 1560 m)
- Weather Lake Cauma (85 km · 997 m)
- Weather Lake Lugano (92 km · 271 m)
Nearby municipalities
- Weather Brusio (3 km)
- Weather Poschiavo (13 km)
- Weather Pontresina (21 km)
- Weather Sils im Engadin/Segl (29 km)
- Weather Celerina/Schlarigna (29 km)
- Weather St. Moritz (30 km)
- Weather La Punt Chamues-ch (30 km)
- Weather Silvaplana (30 km)
Frequently asked questions about the weather: Lake Poschiavo
What is the wind like on Lake Poschiavo today?
The “Wind on the lake” section shows hourly average wind speed, gusts and direction for the next 24 hours, computed over the lake (962 m).
Can you swim in Lake Poschiavo?
At 962 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 Poschiavo?
Characteristic winds: brezza di valle. Storm warnings on Swiss lakes are signalled by flashing lights (40 flashes/min = caution, 90 = storm).
What is the warmest month in Lake Poschiavo?
The warmest month in Lake Poschiavo is July, averaging 17.0 °C (1991–2020 normal). The coldest is January at −0.4 °C.
How much does it rain in Lake Poschiavo per year?
Lake Poschiavo receives about 1027 mm of precipitation a year. The wettest month is October (123 mm), the driest February (37 mm).
When is the best time to visit Lake Poschiavo?
For warmth and sunshine: July (17.0 °C on average, 175 h of sun). The coldest month is January (−0.4 °C). Check the 15-day forecast above for your dates.