17.03
tue
tue
Day
43°F
NE 23 mph
Precip.
88%
88%
Night
50°F
NE 26 mph
Precip.
100%
100%
18.03
wed
wed
Day
39°F
NE 14 mph
Precip.
100%
100%
Night
25°F
E 17 mph
Precip.
0%
0%
19.03
thu
thu
Day
27°F
SW 5 mph
Precip.
0%
0%
Night
25°F
W 9 mph
Precip.
0%
0%
20.03
fri
fri
Day
28°F
SW 14 mph
Precip.
100%
100%
Night
25°F
S 7 mph
Precip.
89%
89%
21.03
sat
sat
Day
32°F
N 11 mph
Precip.
0%
0%
Night
30°F
NE 21 mph
Precip.
84%
84%
22.03
sun
sun
Day
30°F
E 26 mph
Precip.
79%
79%
Night
28°F
E 21 mph
Precip.
0%
0%
23.03
mon
mon
Day
32°F
W 8 mph
Precip.
66%
66%
Night
30°F
W 8 mph
Precip.
100%
100%
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 March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 32.2°F. The highest and lowest sea temperatures during the month were 34.2°F and 31.3°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: 07:02
March 17, tuesday
0900
39°F
NE
23 mph
23 mph
1200
43°F
NE
23 mph
23 mph
1500
46°F
NE
25 mph
25 mph
1800
48°F
NE
23 mph
23 mph
2100
50°F
NE
23 mph
23 mph
March 18, wednesday
0000
50°F
NE
26 mph
26 mph
0300
52°F
NE
28 mph
28 mph
0600
52°F
NE
27 mph
27 mph
