21.12
sun
sun
Day
32°F
NE 12 mph
Precip.
0%
0%
Night
37°F
N 19 mph
Precip.
75%
75%
22.12
mon
mon
Day
37°F
E 12 mph
Precip.
0%
0%
Night
28°F
S 14 mph
Precip.
89%
89%
23.12
tue
tue
Day
27°F
SE 19 mph
Precip.
100%
100%
Night
21°F
SE 12 mph
Precip.
79%
79%
24.12
wed
wed
Day
21°F
SE 7 mph
Precip.
73%
73%
Night
25°F
W 11 mph
Precip.
0%
0%
25.12
thu
thu
Day
28°F
S 28 mph
Precip.
100%
100%
Night
27°F
SE 22 mph
Precip.
83%
83%
26.12
fri
fri
Day
25°F
SE 12 mph
Precip.
0%
0%
Night
19°F
N 7 mph
Precip.
0%
0%
27.12
sat
sat
Day
34°F
NW 30 mph
Precip.
100%
100%
Night
27°F
E 21 mph
Precip.
0%
0%
28.12
sun
sun
Day
25°F
NE 18 mph
Precip.
81%
81%
Night
25°F
NE 21 mph
Precip.
100%
100%
29.12
mon
mon
Day
27°F
NE 12 mph
Precip.
100%
100%
Night
25°F
E 11 mph
Precip.
82%
82%
30.12
tue
tue
Day
25°F
SE 6 mph
Precip.
0%
0%
Night
19°F
W 3 mph
Precip.
0%
0%
31.12
wed
wed
Day
30°F
SW 17 mph
Precip.
0%
0%
Night
28°F
S 22 mph
Precip.
0%
0%
01.01
thu
thu
Day
30°F
S 15 mph
Precip.
0%
0%
Night
23°F
E 6 mph
Precip.
0%
0%
02.01
fri
fri
Day
30°F
SE 14 mph
Precip.
0%
0%
Night
28°F
S 26 mph
Precip.
60%
60%
sea water
temperature
temperature
| St. John's |
monthly
weather
weather
| St. John's |
current
weather
weather
| St. John's |
7 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: 00:40
December 21, sunday
0300
28°F
E
21 mph
21 mph
0600
28°F
E
16 mph
16 mph
0900
30°F
E
13 mph
13 mph
1200
32°F
NE
12 mph
12 mph
1500
34°F
NE
11 mph
11 mph
1800
34°F
N
14 mph
14 mph
2100
36°F
N
17 mph
17 mph
December 22, monday
0000
37°F
N
19 mph
19 mph
