About Simplon
Simplon is a Swiss municipality located in the canton of Valais (VS), at 46.202° latitude and 8.064° longitude. The municipality is part of the Valais Alps, dry continental climate, among the sunniest in Switzerland. Also known as Simplon, Simplon benefits from precise weather monitoring with hourly and 15-day forecasts.
Climate of Simplon
The climate in Simplon is characteristic of the Valais Alps, dry continental climate, among the sunniest in Switzerland. Temperatures, precipitation and wind conditions vary throughout the year with local features linked to altitude and surrounding terrain. Our data comes from official weather stations and real-time Netatmo sensors for Simplon and neighboring municipalities.
On this page you will find the detailed weather forecast for Simplon: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.
Climate of Simplon: 1991–2020 normals
In Simplon (1804 m), the mean annual temperature is 4.2 °C. The warmest month is July (13.2 °C on average) and the coldest January (−4.3 °C). About 684 mm of precipitation falls per year, peaking in May (72 mm) with a minimum in February (39 mm). On average there are 139 frost days per year. The mean monthly maximum reaches 25.2 °C and the absolute minimum −15.1 °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 | −4.3 °C | 6.4 °C | −15.1 °C | 55 | 29 | 0 |
| Feb | −3.6 °C | 8.7 °C | −14.5 °C | 39 | 25 | 0 |
| Mar | −0.0 °C | 12.3 °C | −11.5 °C | 45 | 21 | 0 |
| Apr | 3.5 °C | 15.2 °C | −8.0 °C | 50 | 12 | 0 |
| May | 7.5 °C | 19.9 °C | −3.7 °C | 72 | 3 | 0 |
| Jun | 11.4 °C | 24.4 °C | 0.2 °C | 59 | 0 | 4 |
| Jul | 13.2 °C | 25.2 °C | 2.7 °C | 59 | 0 | 6 |
| Aug | 12.9 °C | 25.0 °C | 2.0 °C | 65 | 0 | 5 |
| Sep | 9.0 °C | 20.8 °C | −1.6 °C | 46 | 1 | 0 |
| Oct | 5.1 °C | 16.8 °C | −5.7 °C | 62 | 6 | 0 |
| Nov | −0.3 °C | 11.8 °C | −11.1 °C | 67 | 16 | 0 |
| Dec | −3.5 °C | 7.0 °C | −14.1 °C | 65 | 26 | 0 |
| Year | 4.2 °C | 25.2 °C | −15.1 °C | 684 | 139 | 15 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Grächen (18 km, 1605 m), Visp (20 km, 639 m), Eggishorn (25 km, 2892 m), adjusted to the elevation of Simplon (1804 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Nearby cities
Check the weather of cities near Simplon:
- Weather Zwischbergen
- Weather Saas-Grund
- Weather Eisten
- Weather Staldenried
- Weather Brig-Glis
- Weather Ried-Brig
- Weather Saas-Balen
- Weather Termen
- Weather Naters
- Weather Stalden (VS)
- Weather Visperterminen
- Weather Riederalp
→ Nearby cities · Canton Valais
Frequently asked questions about weather in Simplon
What is the weather in Simplon today?
At the top of the page you will find the current temperature, precipitation and wind in Simplon, updated in real time.
What is the 15-day forecast for Simplon?
The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Simplon.
Will it rain tomorrow in Simplon?
Check the 48-hour hourly forecast to see exactly when precipitation is expected in Simplon.
What is the air quality in Simplon?
The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Simplon.
Are there weather alerts for Simplon?
Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.
At what altitude is Simplon located?
Simplon sits at around 1804 m above sea level in the canton of Valais. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.
What is the warmest month in Simplon?
The warmest month in Simplon is July, averaging 13.2 °C (1991–2020 normal). The coldest is January at −4.3 °C.
How much does it rain in Simplon per year?
Simplon receives about 684 mm of precipitation a year. The wettest month is May (72 mm), the driest February (39 mm).
When is the best time to visit Simplon?
For warmth and sunshine: July (13.2 °C on average, — h of sun). The coldest month is January (−4.3 °C). Check the 15-day forecast above for your dates.