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St. John's weather in March

Weather in St. John's: March

Average day temperature: 31.7°F
Average night temperature: 28.5°F
Sea water temperature: 32.1°F
Number of sunny days: 2 days
Day length: 11.1 - 12.8 hours
Number of days with precipitation: 5 days
Precipitation totals: 2.8 in.

Air temperature in March, °F

Show year:
2025
2024
2023

The highest day temperature during March of 2025 was 47°F. At the same time the lowest night temperature was 21°F. Daily and nightly averages during March were 33.8°F and 31.2°F.

Sea water temperature in St. John's in March, °F

Show year:
2025
2024
2023

The average sea water temperature in March of 2025 was 32.6°F. The highest and lowest sea temperatures during the month were 34.3°F and 31.5°F.

Sunny, partly cloudy and cloudy days

Mostly all days in March are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in March, in.

Precipitation total value in St. John's in March is 2.8 in. Other months of the year show relatively similar values.

Wind speed in March, mph

The average wind speed value in March is 15.3 mph It makes March one of the most windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in March is: 3.3.

Best time for vacation in St. John's

Sunniest months:
August 9 days
September 7 days
July 7 days
Warmest months:
August 66.1 °F
July 64.5 °F
September 60.3 °F
Warmest sea temp:
August 59.3 °F
September 57.0 °F
July 53.0 °F
Coldest months:
February 27.8 °F
January 30.2 °F
March 31.7 °F
Rainiest months:
November 6 days
August 3 days
May 3 days
Windiest months:
February 16.5 mph
March 15.3 mph
January 15.0 mph

St. John's on a weather map

St. John's
+37°F
NW 17 mph
Feels like: +27°F
Precip.: 100%
Places in Canada:
Name
°F
+43°F
+45°F
+12°F
+16°F
-6°F
+9°F
0°F
+3°F
+14°F
0°F
+25°F
+37°F
+27°F
+14°F
24 Hours Forecast
St. John's
Local time: 04:57
December 05, friday
0600
37°F
NW
17 mph
0900
36°F
NW
16 mph
1200
27°F
E
34 mph
1500
21°F
E
31 mph
1800
21°F
E
34 mph
2100
23°F
E
40 mph
December 06, saturday
0000
23°F
E
40 mph
0300
21°F
E
39 mph
Units of measurement: °C / °F