Current sea water temperature:
+38.5°F
| Minimum sea water temperature in June: | 52.5°F |
| Maximum sea water temperature in June: | 36.3°F |
| Average sea water temperature in June: | 43.8°F |
| more information | |
14 days
forecast
forecast
| St. John's |
monthly
weather
weather
| St. John's |
Sea water temperature for the last 10 days:
| June 6 | 38.5°F | May 31 | 36.7°F |
| June 5 | 37.2°F | May 30 | 37.0°F |
| June 4 | 37.0°F | May 29 | 36.9°F |
| June 3 | 37.0°F | May 28 | 37.2°F |
| June 1 | 36.3°F | May 27 | 38.5°F |
Monthly sea water temperature, °F
When is the warmest sea in St. John's?
Based on the data about daily sea water temperature for the last three years the warmest sea in St. John's was noticed in August, September and July.
Monthly Sea Temperatures in St. John's, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 57.9°F. The highest and lowest sea temperatures during the month were 60.6°F and 55.6°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 56.1°F. The highest and lowest sea temperatures during the month were 58.5°F and 54.0°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 53.0°F. The highest and lowest sea temperatures during the month were 57.7°F and 47.3°F.
current
weather
weather
| St. John's |
weather in
June
June
| St. John's |
Best time for vacation in St. John's
St. John's on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
St. John's
Local time: 22:11
June 07, sunday
0000
39°F
NE
6 mph
6 mph
0300
37°F
NE
6 mph
6 mph
0600
39°F
N
5 mph
5 mph
0900
45°F
N
11 mph
11 mph
1200
46°F
N
14 mph
14 mph
1500
43°F
N
12 mph
12 mph
1800
43°F
N
9 mph
9 mph
2100
43°F
N
12 mph
12 mph
