Current sea water temperature:
+85.5°F
| Minimum sea water temperature in October: | 87.3°F |
| Maximum sea water temperature in October: | 82.6°F |
| Average sea water temperature in October: | 84.5°F |
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14 days
forecast
forecast
| St John's |
monthly
weather
weather
| St John's |
Sea water temperature for the last 10 days:
| October 28 | 85.5°F | October 23 | 86.0°F |
| October 27 | 85.6°F | October 22 | 85.6°F |
| October 26 | 86.0°F | October 21 | 85.5°F |
| October 25 | 86.0°F | October 20 | 85.3°F |
| October 24 | 85.8°F | October 19 | 85.3°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 September, October and August.
Monthly Sea Temperatures in St John's, °F
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 85.1°F. The highest and lowest sea temperatures during the month were 85.8°F and 84.4°F.
Sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 85.4°F. The highest and lowest sea temperatures during the month were 86.0°F and 84.7°F.
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 84.2°F. The highest and lowest sea temperatures during the month were 84.9°F and 83.5°F.
current
weather
weather
| St John's |
weather in
November
November
| St John's |
Best time for vacation in St John's
St John's on a weather map
24 Hours Forecast
St John's
Local time: 14:21
October 30, friday
1500
84°F
W
14 mph
14 mph
1800
82°F
W
12 mph
12 mph
2100
82°F
W
12 mph
12 mph
October 31, saturday
0000
82°F
W
14 mph
14 mph
0300
82°F
W
14 mph
14 mph
0600
82°F
W
16 mph
16 mph
0900
84°F
W
16 mph
16 mph
1200
84°F
W
16 mph
16 mph
