World Resorts Canada Saint John Weather

Saint John 14 Days Forecast

18.03
wed
Day
25°F
E 10 mph
Precip.
0%
Night
25°F
SW 2 mph
Precip.
0%
19.03
thu
Day
30°F
NW 8 mph
Precip.
0%
Night
30°F
N 4 mph
Precip.
0%
20.03
fri
Day
34°F
N 12 mph
Precip.
0%
Night
34°F
NE 7 mph
Precip.
0%
21.03
sat
Day
37°F
SE 10 mph
Precip.
0%
Night
34°F
S 2 mph
Precip.
0%
22.03
sun
Day
39°F
N 12 mph
Precip.
100%
Night
43°F
N 27 mph
Precip.
100%
23.03
mon
Day
39°F
E 19 mph
Precip.
61%
Night
27°F
SE 17 mph
Precip.
78%
24.03
tue
Day
27°F
SE 18 mph
Precip.
0%
Night
28°F
E 8 mph
Precip.
0%
25.03
wed
Day
21°F
SE 19 mph
Precip.
0%
Night
16°F
S 9 mph
Precip.
0%
26.03
thu
Day
23°F
NW 7 mph
Precip.
0%
Night
39°F
N 17 mph
Precip.
100%
27.03
fri
Day
45°F
NE 19 mph
Precip.
100%
Night
34°F
NE 5 mph
Precip.
0%
28.03
sat
Day
39°F
SE 12 mph
Precip.
87%
Night
18°F
SE 14 mph
Precip.
0%
29.03
sun
Day
27°F
S 6 mph
Precip.
0%
Night
27°F
N 6 mph
Precip.
0%
30.03
mon
Day
37°F
NW 22 mph
Precip.
68%
Night
41°F
E 11 mph
Precip.
0%
31.03
tue
Day
34°F
E 13 mph
Precip.
0%
Night
28°F
SE 11 mph
Precip.
0%

Sea water temperature in March, °F

Show year:
2026
2025
2024

The average sea water temperature in March of 2026 was 35.2°F. The highest and lowest sea temperatures during the month were 36.3°F and 33.8°F.

Sea water temperature in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 37.1°F. The highest and lowest sea temperatures during the month were 41.2°F and 34.3°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

Sunniest months:
September 10 days
October 10 days
August 9 days
Warmest months:
July 72.6 °F
August 71.8 °F
June 68.1 °F
Warmest sea temp:
August 59.6 °F
September 58.4 °F
July 56.9 °F
Coldest months:
January 25.6 °F
February 26.3 °F
December 32.4 °F
Rainiest months:
October 3 days
July 3 days
June 2 days
Windiest months:
December 9.0 mph
March 8.8 mph
February 8.6 mph

Saint John on a weather map

Saint John
+25°F
E 10 mph
Feels like: +14°F
Precip.: 0%
Places in Canada:
Name
°F
+50°F
+50°F
+27°F
+28°F
+9°F
+27°F
+23°F
+21°F
+27°F
+19°F
+25°F
+37°F
+27°F
+27°F
24 Hours Forecast
Saint John
Local time: 12:34
March 18, wednesday
1500
27°F
E
10 mph
1800
27°F
SE
6 mph
2100
27°F
SW
2 mph
March 19, thursday
0000
25°F
SW
2 mph
0300
25°F
W
4 mph
0600
25°F
W
4 mph
0900
28°F
NW
7 mph
1200
30°F
NW
8 mph
Units of measurement: °C / °F