Riederalp ski resort
Riederalp is a ski resort in the canton of Valais, in the municipality of Riederalp. The village sits at 1925 m and the ski area (Aletsch Arena) tops out at 2869 m (Moosfluh), a vertical drop of 944 m. The forecast at the top of the page is computed for the village altitude; the “Summit weather” section gives temperature, snow, wind and freezing level at 2869 m.
Snow and season in Riederalp
Between 1500 and 2000 m, winters are long and snowy and summers short and cool; the snow line often drops below the village in winter.
To judge conditions, compare the snow line (≈ 300 m below the freezing level) with the village (1925 m) and the slopes (2869 m); above 50–60 km/h of summit wind, exposed lifts may close; a warm front lifts the freezing level within hours, a cold front brings snow down to the valley.
Climate of Riederalp: 1991–2020 normals
In Riederalp (1925 m), the mean annual temperature is 3.0 °C. The warmest month is July (11.2 °C on average) and the coldest January (−4.3 °C). About 963 mm of precipitation falls per year, peaking in December (109 mm) with a minimum in September (54 mm). The mean monthly maximum reaches 22.4 °C and the absolute minimum −15.6 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) |
|---|---|---|---|---|
| Jan | −4.3 °C | 6.2 °C | −15.6 °C | 93 |
| Feb | −4.1 °C | 7.0 °C | −14.8 °C | 63 |
| Mar | −1.8 °C | 8.4 °C | −13.5 °C | 74 |
| Apr | 1.3 °C | 10.8 °C | −9.6 °C | 59 |
| May | 5.0 °C | 15.2 °C | −5.1 °C | 94 |
| Jun | 9.4 °C | 21.2 °C | −0.6 °C | 75 |
| Jul | 11.2 °C | 22.4 °C | 1.5 °C | 84 |
| Aug | 11.2 °C | 22.1 °C | 1.1 °C | 90 |
| Sep | 7.6 °C | 18.4 °C | −2.8 °C | 54 |
| Oct | 4.5 °C | 15.0 °C | −6.1 °C | 78 |
| Nov | −0.6 °C | 10.6 °C | −11.6 °C | 91 |
| Dec | −3.3 °C | 6.8 °C | −14.2 °C | 109 |
| Year | 3.0 °C | 22.4 °C | −15.6 °C | 963 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Eggishorn (7 km, 2892 m), Blatten, Lötschental (16 km, 1548 m), Visp (17 km, 639 m), adjusted to the elevation of Riederalp (1925 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby ski resorts
- Weather Belalp (3 km · 2094–3100 m)
- Weather Bettmeralp (6 km · 1950–2869 m)
- Weather Fiesch-Eggishorn (8 km · 1050–2869 m)
- Weather Rosswald (8 km · 1800–2500 m)
- Weather Bellwald (12 km · 1560–2560 m)
- Weather Visperterminen (16 km · 1378–2450 m)
Nearby municipalities
- Weather Bettmeralp
- Weather Bitsch
- Weather Mörel-Filet
- Weather Bister
- Weather Lax
- Weather Termen
- Weather Naters
- Weather Ried-Brig
Frequently asked questions about the weather in Riederalp
How high is Riederalp?
The village of Riederalp is at 1925 m and the ski area rises to 2869 m (Moosfluh), a vertical drop of 944 m.
What is the temperature difference between the village and the summit in Riederalp?
Expect about 6 °C less at the summit (2869 m) than in the village (1925 m), using the mean lapse rate of 0.6 °C per 100 m. The “Summit weather” section shows the forecast computed at 2869 m.
When does it snow in Riederalp?
In the village (1925 m) the mean temperature stays below 2 °C from November to April (1991–2020 normals), when precipitation mostly falls as snow. Higher up, snow can fall in any season.
Where can I see the weather on the slopes of Riederalp?
The “Summit weather” section on this page gives, for Moosfluh (2869 m), min/max temperature, 7-day snowfall, wind and gusts, plus the freezing level and the estimated snow line.
What is the warmest month in Riederalp?
The warmest month in Riederalp is July, averaging 11.2 °C (1991–2020 normal). The coldest is January at −4.3 °C.
How much does it rain in Riederalp per year?
Riederalp receives about 963 mm of precipitation a year. The wettest month is December (109 mm), the driest September (54 mm).
When is the best time to visit Riederalp?
For warmth and sunshine: July (11.2 °C on average, — h of sun). The coldest month is January (−4.3 °C). Check the 15-day forecast above for your dates.