The 5 most scenic train journeys in Switzerland
Explore Switzerland's top 5 train journeys, featuring breathtaking Alpine views and engineering marvels like the Glacier Express and Bernina Express.
St. Gallen Weather in September
St. Gallen in September sees pleasant temperatures, with highs around 19°C (66°F) and overnight lows of 10°C (50°F). Rainfall is fairly high at around 145 mm (5.7 in) on average, so pack waterproofs just in case.
Rainfall in St. Gallen in September
On average, there are about 13 days with rain during this month, averaging 145 mm (5.7 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in St. Gallen in September
Daytime temperatures in St. Gallen reach 19°C (66°F) in September, dropping to 10°C (50°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 10°C (50°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in St. Gallen in September
With about 155 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
St. Gallen Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
19°C (66°F)
Chance of Rain
43%
Precipitation
145 mm (5.7 in)
Rainy days
13 days
Humidity
78%
Sunshine
155 hours
Percentage Sunshine
44%
St. Gallen Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in St. Gallen - and find the best time to visit.
Best Places in Switzerland in September
Find out more about the weather in Switzerland and which places have the best travel conditions in this month. See all of Switzerland in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in St. Gallen in September
For St. Gallen in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in St. Gallen in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling9/10 -
Walking9/10 -
Camping6/10 -
Outdoor sports9/10
St. Gallen 3-Day Forecast
More climate data for St. Gallen
Temperature Rainfall Sunshine Humidity
See the full St. Gallen climate overview or explore weather in Switzerland.
Popular in September
Where to go in September - average daytime high across popular destinations.
Zürich
20°C (68°F) Crans-Montana15°C (59°F) Engelberg
15°C (59°F) Nendaz15°C (59°F) Saas-Fee12°C (54°F) Davos13°C (55°F) Grindelwald13°C (55°F) Zermatt11°C (52°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 5 most scenic train journeys in Switzerland
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