Where to Go for Great Weather
Switzerland · Month guide

Switzerland in September

Around 16 °C with 131 mm of rain and 5.9 hours of sun a day.

September is a mixed month for Switzerland — worth planning around specific regions. Around 16 °C with 131 mm of rain and 5.9 hours of sun a day. Use the regional grid below to find where this month works best — national averages hide the swings between coast, highlands, and inland.

Plan a trip in September← Switzerland year-round
Match verdictMatch: Avoid. Switzerland · September.
Avoid
Switzerland · September
What the weather usually does

Switzerland · typical month

  • Day / night
    7 – 16 °C
    Year range -6 – 21 °C
  • Rainfall
    131 mm
    Year range 87 – 170 mm
  • Sunshine
    5.9 hr / day
    Year range 3.6 – 7.9 hr / day
Compare with another destination
What’s open · September

Things to do in Switzerland in September

Nothing is closed in September, and 1 thing below is at its best.

  • At its best
    Furka, Grimsel and Susten passes

    the driving and hiking season for the high passes

    Sources: planthealps.com, the-ski-guru.com

  • Open
    Jungfraujoch — Top of Europe

    reached by rack railway rather than road, which is why it runs all year while the passes below it do not

    Source: jungfrau.ch

Opening seasons are checked by hand against the operators and parks themselves, not derived from the climate figures on this page. Last reviewed 2026-08-28. Dates move — confirm before you book.

26 regions · current month

Switzerland, taken apart

Safety · 6 governments

What the governments say about Switzerland

Combined advisory · most-cautious-wins
Exercise normal precautions
Highest level across 6 governments · Advisory last changed
See breakdown by country
AU

Exercise normal precautions

Changed Checked www.smartraveller.gov.au
CA

Exercise normal precautions

Changed Checked travel.gc.ca
DE

Exercise normal precautions

Changed Checked www.auswaertiges-amt.de
UK

Exercise normal precautions

Changed Checked www.gov.uk
US

Exercise normal precautions

Changed Checked travel.state.gov
Climate at a glance · 10-year ERA5

A decade of weather, in one page

Temperature°C
Temperature · 12-month climatologySwitzerland. Average daytime high by month in °C. Lowest in January (0.4), highest in July (20.8). Monthly means: 0.4, 3.5, 6.2, 9.9, 13.5, 19.4, 20.8, 20.7, 16.3, 11.7, 4.8, 1.3.
— daytime high— overnight low▬ typical range
View data table
MonthAverage daytime high (°C)Average overnight low (°C)Typical lowTypical high
January0.4-6.1-13.46.5
February3.5-4.0-10.410.2
March6.2-2.2-8.112.9
April9.90.7-5.717.0
May13.54.8-0.221.0
June19.49.75.726.1
July20.811.17.526.4
August20.710.96.626.6
September16.37.51.922.7
October11.73.9-0.817.8
November4.8-1.7-7.710.5
December1.3-4.6-11.06.2
Rainfallmm
Rainfall · 12-month climatologySwitzerland. Rainfall by month in mm. Lowest in February (87), highest in June (170). Monthly means: 125, 87, 108, 116, 168, 170, 168, 167, 131, 131, 121, 126.
View data table
MonthRainfall (mm)
January125
February87
March108
April116
May168
June170
July168
August167
September131
October131
November121
December126
Sunshinehr / day
Sunshine · 12-month climatologySwitzerland. Sunshine hours by month in hr / day. Lowest in December (3.6), highest in April (7.9). Monthly means: 4.1, 5.6, 6.9, 7.9, 6.8, 7.2, 7.2, 6.9, 5.9, 5.1, 4.2, 3.6.
View data table
MonthSunshine hours (hr / day)
January4.1
February5.6
March6.9
April7.9
May6.8
June7.2
July7.2
August6.9
September5.9
October5.1
November4.2
December3.6
Windkm/h
Wind · 12-month climatologySwitzerland. Average wind speed by month in km/h. Lowest in August (4.7), highest in January (6.2). Monthly means: 6.2, 6.1, 6.0, 5.8, 5.4, 4.9, 4.9, 4.7, 4.9, 5.4, 5.4, 5.8.
— average▬ typical range
View data table
MonthAverage wind speed (km/h)Typical lowTypical high
January6.23.89.8
February6.13.710.0
March6.03.79.5
April5.83.98.4
May5.43.57.8
June4.93.57.1
July4.93.47.1
August4.73.46.5
September4.93.37.6
October5.43.78.0
November5.43.48.3
December5.83.69.4
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← Earlier
August

Around 21 °C with 167 mm of rain and 6.9 hours of sun a day.

Later →
October

Around 12 °C with 131 mm of rain and 5.1 hours of sun a day.

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