20.12
sat
sat
Day
50°F
N 36 mph
Precip.
100%
100%
Night
28°F
E 30 mph
Precip.
0%
0%
21.12
sun
sun
Day
32°F
E 14 mph
Precip.
0%
0%
Night
37°F
N 19 mph
Precip.
71%
71%
22.12
mon
mon
Day
32°F
E 22 mph
Precip.
86%
86%
Night
27°F
SE 15 mph
Precip.
0%
0%
23.12
tue
tue
Day
27°F
SE 14 mph
Precip.
72%
72%
Night
21°F
E 12 mph
Precip.
0%
0%
24.12
wed
wed
Day
27°F
N 9 mph
Precip.
0%
0%
Night
28°F
W 29 mph
Precip.
100%
100%
25.12
thu
thu
Day
30°F
SE 34 mph
Precip.
100%
100%
Night
21°F
E 16 mph
Precip.
0%
0%
26.12
fri
fri
Day
25°F
SE 4 mph
Precip.
84%
84%
Night
27°F
NW 15 mph
Precip.
68%
68%
sea water
temperature
temperature
| St. John's |
monthly
weather
weather
| St. John's |
current
weather
weather
| St. John's |
14 days
forecast
forecast
| St. John's |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 38.5°F. The highest and lowest sea temperatures during the month were 41.5°F and 36.0°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 35.0°F. The highest and lowest sea temperatures during the month were 36.9°F and 33.4°F.
Air temperature in St. John's, °F
Precipitation total in St. John's, in.
* Charts above show average data for the last 3 years.
Best time for vacation in St. John's
St. John's on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
St. John's
Local time: 20:59
December 20, saturday
2100
32°F
E
27 mph
27 mph
December 21, sunday
0000
28°F
E
30 mph
30 mph
0300
28°F
E
24 mph
24 mph
0600
28°F
E
17 mph
17 mph
0900
28°F
E
14 mph
14 mph
1200
32°F
E
14 mph
14 mph
1500
32°F
NE
12 mph
12 mph
1800
32°F
N
11 mph
11 mph
