Current sea water temperature:
+52.7°F
| Minimum sea water temperature in October: | 56.7°F |
| Maximum sea water temperature in October: | 45.7°F |
| Average sea water temperature in October: | 51.5°F |
| more information | |
14 days
forecast
forecast
| St. John's |
monthly
weather
weather
| St. John's |
Sea water temperature for the last 10 days:
| October 5 | 52.7°F | September 30 | 53.1°F |
| October 4 | 51.6°F | September 29 | 53.1°F |
| October 3 | 50.9°F | September 28 | 53.8°F |
| October 2 | 52.2°F | September 27 | 53.2°F |
| October 1 | 52.5°F | September 26 | 53.4°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 57.0°F. The highest and lowest sea temperatures during the month were 61.3°F and 53.2°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 56.7°F. The highest and lowest sea temperatures during the month were 60.8°F and 53.1°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 51.1°F. The highest and lowest sea temperatures during the month were 55.9°F and 46.6°F.
current
weather
weather
| St. John's |
weather in
October
October
| 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: 17:40
October 05, monday
1800
50°F
NW
16 mph
16 mph
2100
50°F
NW
19 mph
19 mph
October 06, tuesday
0000
54°F
NW
22 mph
22 mph
0300
55°F
N
12 mph
12 mph
0600
61°F
N
14 mph
14 mph
0900
59°F
NE
12 mph
12 mph
1200
54°F
E
14 mph
14 mph
1500
59°F
NE
16 mph
16 mph
