The best times to visit St Gallen for ideal weather are
May 21st to October 7th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
St Gallen Travel Guide
Other St Gallen Travel Info
Weather in St Gallen
Average temperatures in St Gallen vary greatly. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 24th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit St Gallen, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 72.4°F (22.4°C) with temperatures rarely dropping below 57.6°F (14.2°C) at night.
St Gallen Temperatures (Fahrenheit)
St Gallen Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
St Gallen Perceived Temperature (F)
St Gallen Perceived Temperature (C)
Average St Gallen Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in St Gallen are April, November, and then February. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid February. For example, on the week of February 12th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in mid June with an average of 3 days of significant precipitation the week of June 18th.
When can you find snow in St Gallen? Weather stations report large amounts of snow likely to be deepest around February, especially close to early to mid February. The best time to ski (if at all) in St Gallen is often around around December 17th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in St Gallen.
Snow on the Ground
The graph below shows the average snow on the ground in St Gallen (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
St Gallen has some very humid months, with other comfortably humid months. The least humid month is April (57.1% relative humidity), and the most humid month is October (76.5%).
Wind in St Gallen is usually extremely calm. The windiest month is March, followed by May and April. March’s average wind speed of around 4.3 knots (5 MPH or 8 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid March where average top sustained speeds reach 9.3 knots, which is considered a gentle breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in St Gallen.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||3.8||Barely noticeable||7.9||Gentle breeze|
|Feb||3.6||Barely noticeable||7.4||Gentle breeze|
|Mar||4.3||Light breeze||8.8||Gentle breeze|
|Apr||4.1||Light breeze||8.7||Gentle breeze|
|May||4.3||Light breeze||8.7||Gentle breeze|
|Jun||3.9||Barely noticeable||8.1||Gentle breeze|
|Jul||3.9||Barely noticeable||8.4||Gentle breeze|
|Aug||3.6||Barely noticeable||7.7||Gentle breeze|
|Sep||3.2||Barely noticeable||6.9||Gentle breeze|
|Oct||3.2||Barely noticeable||6.9||Light breeze|
|Nov||3.5||Barely noticeable||7.3||Gentle breeze|
|Dec||4||Light breeze||8.1||Gentle breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to St Gallen?
Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Switzerland; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in St Gallen, Switzerland is May, followed by January and June. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit St Gallen in November. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall St Gallen Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 64.9°F (18.3°C) and 42.5°F (5.8°C) with warmer temperatures in the later months. Rain is somewhat common with 6 to 11 days of significant precipitation per month. Spring is the busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the most precipitation with 10 to 12 days of precipitation per month. June – August is the second busiest season for tourism in St Gallen, so lodging and other accommodations may cost slightly more.
Fall (September through November)
Fall daily highs range from 65°F (18.3°C) and 38.4°F (3.6°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: 7 to 9 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is far too cold this time of year in St Gallen to be enjoyable for warm weather travelers. The average high during this season is between 42.8°F (6°C) and 33.8°F (1°C). On average, it rains or snows a fair amount: 7 to 10 times per month. These times of year are fairly slow with tourists.