Lac Bleu (Arolla)
Lac Bleu (Arolla) (natural site) sits at 2090 m (Valais), near Arolla, La Gouille, Evolène. The weather above is computed for the site itself: hourly forecast to pick the best visiting slot (rain, sun, UV), golden hours for photography, 15-day forecast for planning and the 1991–2020 climate for the best season.
Climate of Lac Bleu (Arolla): 1991–2020 normals
In Lac Bleu (Arolla) (2090 m), the mean annual temperature is 2.9 °C. The warmest month is July (11.2 °C on average) and the coldest February (−4.4 °C). About 786 mm of precipitation falls per year, peaking in July (93 mm) with a minimum in February (44 mm). The sun shines for about 1839 hours a year, mostly in July (212 h). On average there are 158 frost days per year. The mean monthly maximum reaches 22.4 °C and the absolute minimum −15.3 °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 | −4.3 °C | 5.9 °C | −15.3 °C | 55 | 110 | 28 | 0 |
| Feb | −4.4 °C | 6.7 °C | −15.1 °C | 44 | 119 | 25 | 0 |
| Mar | −1.6 °C | 9.8 °C | −12.7 °C | 45 | 159 | 24 | 0 |
| Apr | 1.5 °C | 12.9 °C | −9.2 °C | 53 | 164 | 17 | 0 |
| May | 5.4 °C | 17.0 °C | −4.7 °C | 85 | 178 | 6 | 0 |
| Jun | 9.1 °C | 21.2 °C | −1.0 °C | 84 | 192 | 1 | 0 |
| Jul | 11.2 °C | 22.4 °C | 1.5 °C | 93 | 212 | 0 | 1 |
| Aug | 11.0 °C | 21.9 °C | 0.9 °C | 90 | 194 | 0 | 1 |
| Sep | 7.4 °C | 18.0 °C | −2.1 °C | 58 | 169 | 2 | 0 |
| Oct | 4.1 °C | 15.0 °C | −6.3 °C | 58 | 143 | 8 | 0 |
| Nov | −0.7 °C | 10.9 °C | −11.2 °C | 60 | 103 | 19 | 0 |
| Dec | −3.4 °C | 7.0 °C | −14.0 °C | 63 | 96 | 26 | 0 |
| Year | 2.9 °C | 22.4 °C | −15.3 °C | 786 | 1839 | 158 | 2 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Evolène / Villa (7 km, 1825 m), Les Attelas (16 km, 2734 m), Sion (21 km, 482 m), adjusted to the elevation of Lac Bleu (Arolla) (2090 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Sights & landmarks
- Weather St-Léonard underground lake (23 km · 500 m)
- Weather Saillon thermal baths (26 km · 480 m)
- Weather Trient Gorge (34 km · 470 m)
- Weather Pissevache Waterfall (37 km · 480 m)
- Weather Lavey thermal baths (38 km · 420 m)
- Weather Leukerbad thermal baths (39 km · 1411 m)
Nearby municipalities
- Weather Evolène (8 km)
- Weather Saint-Martin (VS) (13 km)
- Weather Hérémence (14 km)
- Weather Mont-Noble (18 km)
- Weather Nendaz (18 km)
- Weather Isérables (19 km)
- Weather Veysonnaz (19 km)
- Weather Vex (20 km)
Sights & landmarks Weather Evolène
Frequently asked questions about the weather: Lac Bleu (Arolla)
When is the best time to visit Lac Bleu (Arolla)?
Pick a rain-free slot in the hourly forecast; for photos, aim for the golden hours (sunrise/sunset) shown above. The sunniest month is July and the warmest July (11.2 °C).
What will the weather be like at Lac Bleu (Arolla) tomorrow?
The “15-Day Forecast” section and the “7-day forecast” block give tomorrow's weather at Lac Bleu (Arolla): min/max temperature, precipitation, wind. Updated hourly.
Where is Lac Bleu (Arolla)?
Lac Bleu (Arolla) is at 2090 m, Valais, near Arolla, La Gouille, Evolène. See the nearby municipalities below for the weather around it.
What is the warmest month in Lac Bleu (Arolla)?
The warmest month in Lac Bleu (Arolla) is July, averaging 11.2 °C (1991–2020 normal). The coldest is February at −4.4 °C.
How much does it rain in Lac Bleu (Arolla) per year?
Lac Bleu (Arolla) receives about 786 mm of precipitation a year. The wettest month is July (93 mm), the driest February (44 mm).
When is the best time to visit Lac Bleu (Arolla)?
For warmth and sunshine: July (11.2 °C on average, 212 h of sun). The coldest month is February (−4.4 °C). Check the 15-day forecast above for your dates.