Weather in Saint John in Summer
| June | July | August | ||||
| Average day temperature: | 68.5°F | 73.7°F | 72.5°F | |||
| Average night temperature: | 55.5°F | 61.3°F | 60.4°F | |||
| Sea water temperature: | 51.7°F | 57.2°F | 59.6°F | |||
| Number of sunny days: | 8 days | 7 days | 9 days | |||
| Day length: | 15.4 - 15.7 h. | 14.7 - 15.6 h. | 13.3 - 14.7 h. | |||
| Number of rainy days: | 3 days | 4 days | 2 days | |||
| Precipitation totals: | 1.3 in. | 1.8 in. | 1.3 in. | |||
current
weather
weather
| Saint John |
monthly
weather
weather
| Saint John |
sea water
temperature
temperature
| Saint John |
14 days
forecast
forecast
| Saint John |
Day & Night air temperature, °F
June
July
August
0
12
24
36
48
60
72
84
96
72.5
73.7
68.5
60.4
61.3
55.5
| Day temperature | Night temperature |
Sea water temperature, °F
June
July
August
0
10
20
30
40
50
60
70
80
59.6
57.2
51.7
Precipitation total, in.
June
July
August
0.0
0.3
0.6
0.9
1.3
1.6
1.9
2.2
2.5
1.3
1.8
1.3
Sunny, partly cloudy and cloudy days
June
July
August
0
5
10
15
20
25
30
35
12
17
14
10
8
8
9
7
8
| Cloudy days | Partly cloudy days | Sunny days |
weather in
winter
winter
| Saint John |
weather in
spring
spring
| Saint John |
weather in
summer
summer
| Saint John |
weather in
autumn
autumn
| Saint John |
Wind speed, mph
June
July
August
0.0
1.2
2.3
3.5
4.7
5.8
7.0
8.2
5.9
6.1
6.8
Average sunny hours
June
July
August
0
1
2
3
4
5
6
7
8
6.7
6.5
6.2
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in Saint John
Saint John on a weather map
Leaflet | Tiles © Esri
Places in Canada:
Name
°F
24 Hours Forecast
Saint John
Local time: 04:38
April 02, wednesday
0600
19°F
SE
12 mph
12 mph
0900
23°F
SE
14 mph
14 mph
1200
30°F
SE
12 mph
12 mph
1500
37°F
E
4 mph
4 mph
1800
34°F
SE
7 mph
7 mph
2100
28°F
S
3 mph
3 mph
April 03, thursday
0000
27°F
W
3 mph
3 mph
0300
27°F
W
4 mph
4 mph
