World Resorts

Switzerland

St Gallen Weather

St Gallen 14 Days Forecast

28.08
fri

Day

70°F

E 14 mph

Precip.
19%

Night

57°F

SE 6 mph

Precip.
66%

29.08
sat

Day

63°F

S 4 mph

Precip.
15%

Night

68°F

NE 3 mph

Precip.
6%

30.08
sun

Day

63°F

S 4 mph

Precip.
4%

Night

70°F

N 7 mph

Precip.
22%

31.08
mon

Day

64°F

SE 4 mph

Precip.
14%

Night

66°F

N 1 mph

Precip.
8%

01.09
tue

Day

63°F

S 3 mph

Precip.
4%

Night

57°F

N 6 mph

Precip.
62%

02.09
wed

Day

61°F

E 5 mph

Precip.
14%

Night

64°F

N 5 mph

Precip.
11%

03.09
thu

Day

63°F

E 7 mph

Precip.
11%

Night

63°F

NE 9 mph

Precip.
32%

04.09
fri

Day

63°F

E 9 mph

Precip.
28%

Night

68°F

N 7 mph

Precip.
8%

05.09
sat

Day

61°F

E 9 mph

Precip.
29%

Night

57°F

NE 4 mph

Precip.
75%

06.09
sun

Day

61°F

S 2 mph

Precip.
22%

Night

70°F

N 4 mph

Precip.
10%

07.09
mon

Day

66°F

NW 2 mph

Precip.
4%

Night

75°F

N 7 mph

Precip.
4%

08.09
tue

Day

77°F

NE 3 mph

Precip.
3%

Night

77°F

N 8 mph

Precip.
16%

09.09
wed

Day

63°F

E 12 mph

Precip.
36%

Night

48°F

NE 5 mph

Precip.
76%

10.09
thu

Day

48°F

S 5 mph

Precip.
71%

Night

46°F

S 7 mph

Precip.
82%

sea water
temperature

St Gallen

monthly
weather

St Gallen

current
weather

St Gallen

7 days
forecast

St Gallen

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2026

2025

2024

The average sea water temperature in August of 2026 was 75.8°F. The highest and lowest sea temperatures during the month were 77.5°F and 72.7°F.

Show year:

2025

2024

2023

The average sea water temperature in September of 2025 was 66.8°F. The highest and lowest sea temperatures during the month were 70.5°F and 63.3°F.