Measurements:
°C
°F
Saint John
4°F
SE 17 mph
Feels like: -14°F
Precip: 0%
World Resorts Canada Saint John Weather

7 Day Weather Forecast

12.05
fri
DAY
16°F
SE 12 mph
precip
0%
NIGHT
14°F
SE 3 mph
precip
0%
12.06
sat
DAY
28°F
NW 4 mph
precip
0%
NIGHT
34°F
E 6 mph
precip
100%
12.07
sun
DAY
30°F
SE 11 mph
precip
0%
NIGHT
18°F
S 6 mph
precip
0%
12.08
mon
DAY
20°F
SW 14 mph
precip
100%
NIGHT
10°F
SE 19 mph
precip
0%
12.09
tue
DAY
12°F
SE 11 mph
precip
0%
NIGHT
20°F
E 4 mph
precip
100%
12.10
wed
DAY
38°F
NE 14 mph
precip
100%
NIGHT
46°F
N 19 mph
precip
100%
12.11
thu
DAY
46°F
N 9 mph
precip
100%
NIGHT
28°F
E 16 mph
precip
21%

Saint John Sea Water Temperature in December, °F

Select Year: 2024 2023 2022

The average sea surface temperature in December 2024 for Saint John was 7.0°F. The maximum and minimum values were 4.7°F and 8.6°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 23.2 °F
December 31.4 °F
The most rainy months:
July 3 days
October 3 days
December 2 days
The most windy months:
March 9 mph
February 8 mph
December 8 mph