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%
24.03
tue
tue
Day

32°F
S 22 mph
Precip.
100%
100%
Night

27°F
S 24 mph
Precip.
74%
74%
25.03
wed
wed
Day

28°F
S 17 mph
Precip.
86%
86%
Night

25°F
E 8 mph
Precip.
0%
0%
26.03
thu
thu
Day

36°F
NE 12 mph
Precip.
0%
0%
Night

30°F
NE 19 mph
Precip.
0%
0%
27.03
fri
fri
Day

37°F
NE 14 mph
Precip.
0%
0%
Night

28°F
S 12 mph
Precip.
63%
63%
28.03
sat
sat
Day

28°F
SW 14 mph
Precip.
0%
0%
Night

30°F
W 19 mph
Precip.
0%
0%
29.03
sun
sun
Day

36°F
NW 12 mph
Precip.
100%
100%
Night

41°F
NW 12 mph
Precip.
0%
0%
30.03
mon
mon
Day

39°F
NW 11 mph
Precip.
100%
100%
Night

37°F
NW 7 mph
Precip.
85%
85%
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 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: 07:59
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




























