Measurements:
°C
°F
St. John's
32°F
S 19 mph
Feels like: 20°F
Precip: 100%
World Resorts Canada St. John's Weather

7 Day Weather Forecast

04.21
tue
DAY
34°F
SE 16 mph
precip
0%
NIGHT
28°F
S 16 mph
precip
100%
04.22
wed
DAY
32°F
SW 6 mph
precip
100%
NIGHT
26°F
E 14 mph
precip
61%
04.23
thu
DAY
32°F
E 13 mph
precip
0%
NIGHT
26°F
E 9 mph
precip
0%
04.24
fri
DAY
32°F
SW 11 mph
precip
64%
NIGHT
28°F
S 19 mph
precip
100%
04.25
sat
DAY
30°F
SE 13 mph
precip
100%
NIGHT
30°F
SE 16 mph
precip
100%
04.26
sun
DAY
30°F
S 16 mph
precip
100%
NIGHT
30°F
SE 19 mph
precip
100%
04.27
mon
DAY
30°F
S 15 mph
precip
77%
NIGHT
18°F
S 5 mph
precip
0%

St. John's Sea Water Temperature in April, °F

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for St. John's was 0.2°F. The maximum and minimum values were -0.3°F and 1.5°F respectively.

St. John's on the Weather Map

Best Time to Visit St. John's
The most sunny months:
August 9 days
September 7 days
July 7 days
The most warm months:
August 67.9 °F
July 66.2 °F
September 61.4 °F
Warmest sea temperature:
August 60.3 °F
September 57.8 °F
July 53.3 °F
The most cold months:
February 25.7 °F
January 28.0 °F
March 29.7 °F
The most rainy months:
November 6 days
August 3 days
May 3 days
The most windy months:
February 16 mph
March 15 mph
January 15 mph