Current sea water temperature:
+52.0°F
| Minimum sea water temperature in October: | 59.2°F |
| Maximum sea water temperature in October: | 52.0°F |
| Average sea water temperature in October: | 55.5°F |
| more information | |
14 days
forecast
forecast
| Saint John |
monthly
weather
weather
| Saint John |
Sea water temperature for the last 10 days:
| October 25 | 52.0°F | October 20 | 52.5°F |
| October 24 | 52.5°F | October 19 | 52.9°F |
| October 23 | 53.2°F | October 18 | 52.9°F |
| October 22 | 52.9°F | October 17 | 53.1°F |
| October 21 | 52.9°F | October 16 | 53.4°F |
Monthly sea water temperature, °F
When is the warmest sea in Saint John?
Based on the data about daily sea water temperature for the last three years the warmest sea in Saint John was noticed in August, September and July.
Monthly Sea Temperatures in Saint John, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 58.4°F. The highest and lowest sea temperatures during the month were 61.9°F and 52.5°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 57.2°F. The highest and lowest sea temperatures during the month were 59.0°F and 55.2°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 54.5°F. The highest and lowest sea temperatures during the month were 60.8°F and 50.7°F.
current
weather
weather
| Saint John |
weather in
October
October
| Saint John |
Best time for vacation in Saint John
Saint John on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Saint John
Local time: 21:52
October 26, monday
0000
43°F
NE
8 mph
8 mph
0300
41°F
NE
7 mph
7 mph
0600
41°F
E
7 mph
7 mph
0900
43°F
NE
7 mph
7 mph
1200
54°F
NE
7 mph
7 mph
1500
57°F
NE
9 mph
9 mph
1800
54°F
E
7 mph
7 mph
2100
48°F
SE
7 mph
7 mph
