World Resorts

Canada

Saint John Weather

Saint John 14 Days Forecast

18.08
tue

Day

70°F

W 6 mph

Precip.
35%

Night

63°F

W 6 mph

Precip.
68%

19.08
wed

Day

70°F

SE 3 mph

Precip.
26%

Night

57°F

NE 6 mph

Precip.
43%

20.08
thu

Day

66°F

N 2 mph

Precip.
69%

Night

61°F

N 1 mph

Precip.
44%

21.08
fri

Day

72°F

W 4 mph

Precip.
5%

Night

59°F

W 5 mph

Precip.
8%

22.08
sat

Day

68°F

NW 7 mph

Precip.
20%

Night

57°F

N 4 mph

Precip.
29%

23.08
sun

Day

68°F

N 6 mph

Precip.
18%

Night

61°F

NW 3 mph

Precip.
79%

24.08
mon

Day

61°F

N 9 mph

Precip.
38%

Night

55°F

SE 5 mph

Precip.
14%

25.08
tue

Day

63°F

NE 10 mph

Precip.
13%

Night

54°F

E 3 mph

Precip.
10%

26.08
wed

Day

63°F

E 6 mph

Precip.
11%

Night

52°F

S 5 mph

Precip.
8%

27.08
thu

Day

64°F

NW 5 mph

Precip.
2%

Night

52°F

SW 3 mph

Precip.
6%

28.08
fri

Day

64°F

NW 6 mph

Precip.
13%

Night

54°F

NW 3 mph

Precip.
11%

29.08
sat

Day

66°F

NW 7 mph

Precip.
16%

Night

55°F

SW 4 mph

Precip.
16%

30.08
sun

Day

72°F

NE 5 mph

Precip.
2%

Night

57°F

NE 7 mph

Precip.
42%

31.08
mon

Day

66°F

N 9 mph

Precip.
24%

Night

61°F

N 3 mph

Precip.
54%

sea water
temperature

Saint John

monthly
weather

Saint John

current
weather

Saint John

7 days
forecast

Saint John

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 58.1°F. The highest and lowest sea temperatures during the month were 61.9°F and 52.5°F.

Show year:

2025

2024

2023

The average sea water temperature in September of 2025 was 58.5°F. The highest and lowest sea temperatures during the month were 61.2°F and 56.7°F.