Lake Tanay
Lake Tanay is a Swiss lake (Valais) at 1408 m, covering 0.3 km² with a maximum depth of 40 m. Typical winds: vents de montagne. Main shores and access points: Vouvry, Miex, Le Flon. 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 Tanay: 1991–2020 normals
In Lake Tanay (1408 m), the mean annual temperature is 5.1 °C. The warmest month is July (14.2 °C on average) and the coldest January (−3.8 °C). About 1252 mm of precipitation falls per year, peaking in July (146 mm) with a minimum in February (73 mm). The mean monthly maximum reaches 25.3 °C and the absolute minimum −14.2 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) |
|---|---|---|---|---|
| Jan | −3.8 °C | 6.6 °C | −14.2 °C | 86 |
| Feb | −2.8 °C | 7.9 °C | −12.4 °C | 73 |
| Mar | 1.1 °C | 12.7 °C | −8.7 °C | 80 |
| Apr | 4.9 °C | 17.3 °C | −6.2 °C | 84 |
| May | 8.9 °C | 21.2 °C | −1.7 °C | 120 |
| Jun | 12.4 °C | 24.1 °C | 1.5 °C | 122 |
| Jul | 14.2 °C | 25.3 °C | 3.8 °C | 146 |
| Aug | 13.7 °C | 24.6 °C | 3.2 °C | 138 |
| Sep | 9.6 °C | 20.0 °C | −0.3 °C | 103 |
| Oct | 5.4 °C | 16.0 °C | −4.8 °C | 101 |
| Nov | 0.2 °C | 11.7 °C | −9.2 °C | 97 |
| Dec | −3.0 °C | 7.4 °C | −12.7 °C | 102 |
| Year | 5.1 °C | 25.3 °C | −14.2 °C | 1252 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Aigle (7 km, 381 m), Pully (23 km, 456 m), Evionnaz (23 km, 482 m), adjusted to the elevation of Lake Tanay (1408 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Swiss lakes
- Weather Lake Geneva (25 km · 372 m)
- Weather Lake Champex (41 km · 1466 m)
- Weather Lake Gruyère (45 km · 677 m)
- Weather Schwarzsee (Lac Noir) (50 km · 1046 m)
- Weather Lake Joux (53 km · 1004 m)
- Weather Lake Neuchâtel (62 km · 429 m)
Nearby municipalities
- Weather Saint-Gingolph (4 km)
- Weather Port-Valais (5 km)
- Weather Chessel (5 km)
- Weather Vouvry (5 km)
- Weather Noville (6 km)
- Weather Vionnaz (6 km)
- Weather Yvorne (7 km)
- Weather Roche (VD) (7 km)
Swiss lakes Weather Saint-Gingolph
Frequently asked questions about the weather: Lake Tanay
What is the wind like on Lake Tanay today?
The “Wind on the lake” section shows hourly average wind speed, gusts and direction for the next 24 hours, computed over the lake (1408 m).
Can you swim in Lake Tanay?
At 1408 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 Tanay?
Characteristic winds: vents de montagne. Storm warnings on Swiss lakes are signalled by flashing lights (40 flashes/min = caution, 90 = storm).
What is the warmest month in Lake Tanay?
The warmest month in Lake Tanay is July, averaging 14.2 °C (1991–2020 normal). The coldest is January at −3.8 °C.
How much does it rain in Lake Tanay per year?
Lake Tanay receives about 1252 mm of precipitation a year. The wettest month is July (146 mm), the driest February (73 mm).
When is the best time to visit Lake Tanay?
For warmth and sunshine: July (14.2 °C on average, — h of sun). The coldest month is January (−3.8 °C). Check the 15-day forecast above for your dates.