Measurements:
°C
°F
CURRENT WEATHER
04:03
Saint John
30°F
NE 12 mph
Feels like: 24°F
Precip: 0%
World Resorts Canada Saint John Weather

7 Day Weather Forecast

03.30
mon
DAY
38°F
N 16 mph
precip
0%
NIGHT
38°F
E 6 mph
precip
0%
03.31
tue
DAY
44°F
S 6 mph
precip
0%
NIGHT
32°F
W 12 mph
precip
100%
04.01
wed
DAY
42°F
W 10 mph
precip
0%
NIGHT
28°F
SE 5 mph
precip
0%
04.02
thu
DAY
30°F
SW 7 mph
precip
0%
NIGHT
26°F
SW 9 mph
precip
100%
04.03
fri
DAY
26°F
W 15 mph
precip
100%
NIGHT
28°F
W 12 mph
precip
100%
04.04
sat
DAY
28°F
SW 11 mph
precip
100%
NIGHT
30°F
NW 10 mph
precip
100%
04.05
sun
DAY
36°F
N 12 mph
precip
100%
NIGHT
34°F
E 10 mph
precip
0%

Saint John Sea Water Temperature in March, °F

Select Year: 2026 2025 2024

The average sea surface temperature in March 2026 for Saint John was 1.7°F. The maximum and minimum values were 1.0°F and 2.4°F respectively.

Saint John on the Weather Map

Best Time to Visit Saint John
The most sunny months:
September 10 days
October 10 days
August 9 days
The most warm months:
July 75.1 °F
August 74.3 °F
June 70.1 °F
Warmest sea temperature:
August 60.6 °F
September 59.3 °F
July 57.7 °F
The most cold months:
January 22.9 °F
February 23.7 °F
December 30.5 °F
The most rainy months:
July 3 days
October 3 days
June 2 days
The most windy months:
March 9 mph
December 9 mph
February 8 mph
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