Average Rainfall for Switzerland in September





The tables below give monthly averages for rainfall during September at cities, resorts and mountains in Switzerland. Each place has a total for how many days of wet weather it usually gets this month and for the normal amount of precipitation.

The calculation of days only includes the days when precipitation totalled at least one millimetre (0.04 inches).

The month's total rainfall is an average of weather data collected during 1981 to 2010.

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

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.

Some of the weather stations are at high elevations in the Valais (or Pennine) Alps of southwestern Switzerland. Great St. Bernard Pass (Col du Grand St-Bernard) is the highest point on this list at 2472 metres (8110 feet). Also above 1400 metres (or 4600 feet) is the mountain resort town of Zermatt.

Average monthly precipitation in September
Days Place Inches Milli­metres
9 Biel / Bienne 3.8 97
8 Evolène 2.3 59
9 Fribourg 3.9 100
8 Geneva (Genève) 4.0 101
7 Grächen 2.0 51
11 Great St. Bernard Pass 5.6 143
11 La Chaux-de-Fonds 5.1 128
9 Lausanne 4.5 114
9 Neuchâtel (Neuenburg) 3.7 93
8 Nyon 3.6 92
9 Payerne 3.3 84
6 Sion (Sitten) 1.7 44
7 Zermatt 2.2 55

Central & Northern Switzerland

Most places on this list are below 1000 metres (3280 feet) elevation where the weather is relatively mild. Somewhat snowier are the ski resort villages of Adelboden in the Bernese Oberland and Engelberg in Obwalden canton.

The site here with the most extreme precipitation is the mountain peak Säntis, near Schwägalp. At 2502 metres (8209 feet) elevation it's the highest point in the Appenzell Alps.

September averages for total rainfall
Days Place Inches Milli­metres
9 Aarau 3.5 90
11 Adelboden 4.1 103
9 Basel 3.1 78
9 Bern (Bären) 3.9 99
12 Engelberg 5.1 130
10 Interlaken 3.8 96
10 Lucerne (Luzern) 4.2 107
13 Säntis 8.8 223
9 Schaffhausen 2.9 72
12 St. Gallen 5.3 135
11 Wädenswil 5.0 127
10 Zürich 3.6 90

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, Scuol and Samedan, which sit above 1500 metres (4921 feet) elevation.

There are also two mountains of the Central Eastern Alps. On Weissfluhjoch, a peak in the Plessur Range above Davos, weather is reported from just below the summit, at 2690 metres (8825 feet) elevation. On Piz Corvatsch, near Silvaplana in the Bernina Range, the weather is measured at 3305 metres (10,843 feet).

Average amount of rain in September
Days Place Inches Milli­metres
11 Arosa 4.9 124
8 Chur 3.2 81
10 Davos 3.7 93
10 Disentis / Sedrun 4.5 114
12 Glarus 5.4 138
9 Locarno 9.3 236
8 Lugano 7.3 185
9 Piz Corvatsch 3.2 81
8 Samedan 2.9 73
10 San Bernardino 6.9 176
8 Scuol 2.4 62
11 Weissfluhjoch 4.7 119
Reference

MeteoSwiss. Federal Department of Home Affairs FDHA. Federal Office of Meteorology and Climatology. Swiss Climate. Norm values tables.

Switzerland Precipitation
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