Measurements:
°C
°F
Saint John
52°F
W 6 mph
Feels like: 48°F
Precip: 0%
World Resorts Canada Saint John Weather

Saint John Sea Water Temperature

Current Sea Water Temperature:
+34.4°F
Maximum Sea Water Temperature in March: 37.8°F
Minimum Sea Water Temperature in March: 33.2°F
Average water temperature in March: 35.1°F

Sea Water Temperature for the Last 10 Days:

March 19 34.4°F March 14 34.2°F
March 18 34.6°F March 13 34.8°F
March 17 35.2°F March 12 34.2°F
March 16 34.0°F March 11 34.0°F
March 15 34.4°F March 10 35.0°F

When is the Warmest Sea for Saint John?

According to our data for the last three years for Saint John the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0
10
20
30
40
50
60
70
80
45.6
51.1
56.5
59.3
60.6
58
51.9
44.6
37.5
35.1
36.3
40.3

Sea Water Temperature in August

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
53
56
59
62
65
68
71

The average sea surface temperature in August 2024 for Saint John was 60.3°F. The maximum and minimum values were 57.0°F and 62.8°F respectively.

Sea Water Temperature in September

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
52
55
58
61
64
67
70

The average sea surface temperature in September 2024 for Saint John was 59.5°F. The maximum and minimum values were 56.8°F and 62.0°F respectively.

Sea Water Temperature in July

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
47
51
55
59
63
67
71

The average sea surface temperature in July 2024 for Saint John was 59.6°F. The maximum and minimum values were 54.4°F and 66.6°F respectively.

Best Time to Visit Saint John
The most sunny months:
September 10 days
August 9 days
October 9 days
The most warm months:
July 76.3 °F
August 75.0 °F
June 70.6 °F
Warmest sea temperature:
August 60.6 °F
September 59.3 °F
July 58.0 °F
The most cold months:
January 22.9 °F
February 23.2 °F
December 31.4 °F
The most rainy months:
July 4 days
March 3 days
October 3 days
The most windy months:
March 9 mph
February 8 mph
December 8 mph

Saint John on the Weather Map

Canada Resorts:
NAME
Halifax +50
Moncton +32
Montreal +44
Nanaimo +42
Niagara Falls +58
Ottawa +44
Prince Edward Island +32
Quebec +34
St. John's +30
Sydney +38
Toronto +46
Vancouver +40
Victoria +44
Winnipeg +26
Yellowknife -14
24 Hours Weather Forecast
Saint John
Local time: 14:29
19 mar, wednesday
1500 52°F
W
6 mph
1800 50°F
W
6 mph
2100 38°F
W
6 mph
20 mar, thursday
0000 34°F
W
4 mph
0300 34°F
N
4 mph
0600 34°F
N
4 mph
0900 36°F
N
7 mph
1200 46°F
N
12 mph