17.07
fri
fri
Day
68°F
SE 11 mph
Precip.
12%
12%
Night
57°F
E 6 mph
Precip.
6%
6%
18.07
sat
sat
Day
72°F
NE 11 mph
Precip.
2%
2%
Night
57°F
N 7 mph
Precip.
19%
19%
19.07
sun
sun
Day
61°F
NE 11 mph
Precip.
37%
37%
Night
61°F
SE 13 mph
Precip.
5%
5%
20.07
mon
mon
Day
70°F
E 10 mph
Precip.
1%
1%
Night
52°F
N 6 mph
Precip.
14%
14%
21.07
tue
tue
Day
68°F
N 9 mph
Precip.
5%
5%
Night
57°F
N 5 mph
Precip.
81%
81%
22.07
wed
wed
Day
70°F
E 11 mph
Precip.
2%
2%
Night
54°F
S 4 mph
Precip.
10%
10%
23.07
thu
thu
Day
70°F
W 6 mph
Precip.
2%
2%
Night
55°F
SW 2 mph
Precip.
10%
10%
sea water
temperature
temperature
| Saint John |
monthly
weather
weather
| Saint John |
current
weather
weather
| Saint John |
14 days
forecast
forecast
| Saint John |
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 53.2°F. The highest and lowest sea temperatures during the month were 55.9°F and 50.7°F.
Air temperature in Saint John, °F
Precipitation total in Saint John, in.
* Charts above show average data for the last 3 years.
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: 10:01
July 17, friday
1200
68°F
SE
11 mph
11 mph
1500
73°F
SE
11 mph
11 mph
1800
77°F
NE
8 mph
8 mph
2100
57°F
NE
5 mph
5 mph
July 18, saturday
0000
57°F
E
6 mph
6 mph
0300
55°F
E
5 mph
5 mph
0600
54°F
E
4 mph
4 mph
0900
64°F
NE
7 mph
7 mph
