Measurements:
°C
°F
CURRENT WEATHER
20:57
St Gallen
64°F
N 2 mph
Feels like: 64°F
Precip: 0%
World Resorts Switzerland St Gallen Weather

7 Day Weather Forecast

05.27
wed
DAY
76°F
S 3 mph
precip
100%
NIGHT
62°F
W 2 mph
precip
0%
05.28
thu
DAY
72°F
SW 4 mph
precip
0%
NIGHT
58°F
N 1 mph
precip
0%
05.29
fri
DAY
72°F
SW 4 mph
precip
0%
NIGHT
58°F
N 3 mph
precip
0%
05.30
sat
DAY
78°F
S 4 mph
precip
0%
NIGHT
64°F
N 4 mph
precip
0%
05.31
sun
DAY
64°F
N 8 mph
precip
79%
NIGHT
54°F
NE 6 mph
precip
74%
06.01
mon
DAY
68°F
SE 4 mph
precip
47%
NIGHT
58°F
NE 4 mph
precip
0%
06.02
tue
DAY
66°F
E 6 mph
precip
100%
NIGHT
52°F
NE 7 mph
precip
100%

St Gallen Sea Water Temperature in May, °F

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for St Gallen was 14.9°F. The maximum and minimum values were 13.2°F and 20.9°F respectively.

St Gallen on the Weather Map

Best Time to Visit St Gallen
The most sunny months:
August 16 days
October 15 days
September 14 days
The most warm months:
August 75.8 °F
July 75.4 °F
June 73.0 °F
Warmest sea temperature:
August 71.9 °F
July 71.1 °F
September 66.7 °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