Measurements:
°C
°F
Saint John
34°F
S 7 mph
Feels like: 26°F
Precip: 0%
World Resorts Canada Saint John Weather

Saint John Sea Water Temperature

Current Sea Water Temperature:
+45.2°F
Maximum Sea Water Temperature in May: 49.2°F
Minimum Sea Water Temperature in May: 38.2°F
Average water temperature in May: 44.2°F

Sea Water Temperature for the Last 10 Days:

May 09 45.2°F May 04 41.8°F
May 08 43.4°F May 03 43.2°F
May 07 41.6°F May 02 44.0°F
May 06 42.2°F May 01 41.8°F
May 05 44.4°F April 30 40.2°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

Sea Water Temperature in August

Select Year: 2023 2022 2021

The average sea surface temperature in August 2023 for Saint John was 60.4°F. The maximum and minimum values were 57.4°F and 62.6°F respectively.

Sea Water Temperature in September

Select Year: 2023 2022 2021

The average sea surface temperature in September 2023 for Saint John was 59.5°F. The maximum and minimum values were 58.4°F and 61.6°F respectively.

Sea Water Temperature in July

Select Year: 2023 2022 2021

The average sea surface temperature in July 2023 for Saint John was 59.6°F. The maximum and minimum values were 51.6°F and 66.2°F respectively.

Best Time to Visit Saint John
The most sunny months:
September 10 days
October 9 days
May 9 days
The most warm months:
July 77.7 °F
August 76.1 °F
June 71.8 °F
Warmest sea temperature:
August 60.7 °F
September 59.2 °F
July 57.6 °F
The most cold months:
January 22.6 °F
February 23.2 °F
December 31.3 °F
The most rainy months:
July 4 days
August 3 days
March 3 days
The most windy months:
March 9 mph
December 8 mph
February 8 mph

Saint John on the Weather Map

Canada Resorts:
NAME
Halifax +38
Moncton +32
Montreal +50
Nanaimo +70
Ottawa +52
Quebec +40
Rocky Harbour +36
St. John's +34
Sydney +36
Tofino +56
Toronto +56
Vancouver +64
Victoria +62
Winnipeg +66
Yellowknife +52
24 Hours Weather Forecast
Saint John
Local time: 23:27
10 may, friday
0000 34°F
S
7 mph
0300 30°F
S
6 mph
0600 34°F
S
6 mph
0900 44°F
SW
9 mph
1200 48°F
SW
8 mph
1500 50°F
SW
8 mph
1800 48°F
SW
6 mph
2100 44°F
W
5 mph