Measurements:
°C
°F
CURRENT WEATHER
00:00
St Gallen
68°F
NE 2 mph
Feels like: 68°F
Precip: 8%
World Resorts Switzerland St Gallen Weather

7 Day Weather Forecast

09.29
tue
DAY
60°F
SW 3 mph
precip
6%
NIGHT
70°F
N 3 mph
precip
19%
09.30
wed
DAY
66°F
S 3 mph
precip
6%
NIGHT
72°F
NE 4 mph
precip
15%
10.01
thu
DAY
64°F
SE 4 mph
precip
14%
NIGHT
68°F
NE 1 mph
precip
27%
10.02
fri
DAY
58°F
SW 5 mph
precip
34%
NIGHT
64°F
W 2 mph
precip
19%
10.03
sat
DAY
58°F
NE 2 mph
precip
16%
NIGHT
60°F
E 3 mph
precip
25%
10.04
sun
DAY
56°F
NE 2 mph
precip
16%
NIGHT
52°F
E 3 mph
precip
41%
10.05
mon
DAY
56°F
SW 2 mph
precip
10%
NIGHT
58°F
NW 2 mph
precip
27%

St Gallen Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for St Gallen was 21.1°F. The maximum and minimum values were 18.8°F and 23.0°F respectively.

St Gallen on the Weather Map

Best Time to Visit St Gallen
The most sunny months:
October 15 days
August 15 days
March 13 days
The most warm months:
August 75.8 °F
July 75.5 °F
June 73.1 °F
Warmest sea temperature:
August 72.3 °F
July 71.5 °F
September 67.0 °F
The most cold months:
January 35.8 °F
December 38.8 °F
February 40.0 °F
The most rainy months:
July 10 days
May 9 days
June 9 days
The most windy months:
January 4 mph
February 4 mph
March 4 mph
more details