Average Humidity for Switzerland in September

The average humidity levels in September are listed below for cities, resorts and mountains throughout Switzerland.

You can jump to a separate table for each part of the country: Eastern, Western, Central and Northern Switzerland.

Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold. All the numbers here are based on weather data collected from 1961 to 1990.

Western Switzerland

This section covers the mainly French speaking portion of Switzerland. It includes the area around Lake Geneva and the cantons of Fribourg, Geneva, Jura, Neuchâtel, Valais and Vaud.

Average September humidity
Place %
Fribourg 78
Geneva (Genève) 73
Great St. Bernard Pass 75
La Chaux-de-Fonds 78
Montreux 79
Neuchâtel (Neuenburg) 74
Sion (Sitten) 74

Central & Northern Switzerland

While most places on this list are below 1000 metres (3280 feet) elevation, there are two mountain peaks. Säntis, near Schwägalp, at 2502 metres (8209 feet) elevation is the highest point in the Appenzell Alps. Even higher is the weather station at 3580 metres (11,745 feet), above Jungfraujoch pass of the Bernese Alps.

September relative humidity averages
Place %
Adelboden 78
Basel 78
Bern (Bären) 81
Jungfraujoch 67
Lucerne (Luzern) 80
Säntis 74
Schaffhausen 79
St. Gallen 82
Zürich 79

Eastern Switzerland

This list includes two low-elevation cities, Locarno and Lugano, in the canton of Ticino of south-east Switzerland.

Several places here in the canton of Graubünden are mountain resort towns, including Davos and Samedan, which sit above 1500 metres (4921 feet) elevation. On Weissfluhjoch, a peak in the Plessur Range above Davos, weather is reported from just below the summit, at 2690 metres (8825 feet) elevation.

Average daily humidity in September
Place %
Chur 72
Davos 75
Glarus 82
Locarno 72
Lugano 74
Samedan 73
Weissfluhjoch 72

Office fédéral de météorologie et de climatologie MétéoSuisse. Standards 1961-1990.

Switzerland Humidity
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