Measurements:
°C
°F
CURRENT WEATHER
09:24
Saint John
46°F
N 10 mph
Feels like: 40°F
Precip: 8%
World Resorts Canada Saint John Weather

7 Day Weather Forecast

10.19
mon
DAY
52°F
N 12 mph
precip
6%
NIGHT
42°F
E 4 mph
precip
30%
10.20
tue
DAY
54°F
S 11 mph
precip
13%
NIGHT
38°F
S 6 mph
precip
23%
10.21
wed
DAY
50°F
SW 7 mph
precip
4%
NIGHT
40°F
W 2 mph
precip
26%
10.22
thu
DAY
52°F
SE 4 mph
precip
14%
NIGHT
40°F
S 11 mph
precip
6%
10.23
fri
DAY
44°F
S 16 mph
precip
8%
NIGHT
28°F
S 5 mph
precip
19%
10.24
sat
DAY
44°F
SE 5 mph
precip
1%
NIGHT
34°F
SE 4 mph
precip
4%
10.25
sun
DAY
50°F
NE 6 mph
precip
2%
NIGHT
46°F
NE 10 mph
precip
14%

Saint John Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Saint John was 12.6°F. The maximum and minimum values were 11.6°F and 14.7°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 74.9 °F
August 73.8 °F
June 69.6 °F
Warmest sea temperature:
August 60.4 °F
September 59.1 °F
July 57.3 °F
The most cold months:
January 22.9 °F
February 23.7 °F
December 30.5 °F
The most rainy months:
August 3 days
October 3 days
July 3 days
The most windy months:
March 9 mph
December 9 mph
February 8 mph
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