Measurements:
°C
°F
CURRENT WEATHER
10:04
St. John's
60°F
N 8 mph
Feels like: 60°F
Precip: 19%
World Resorts Canada St. John's Weather

7 Day Weather Forecast

08.19
wed
DAY
66°F
N 9 mph
precip
4%
NIGHT
54°F
N 7 mph
precip
39%
08.20
thu
DAY
64°F
N 11 mph
precip
51%
NIGHT
64°F
NE 6 mph
precip
42%
08.21
fri
DAY
74°F
NE 8 mph
precip
21%
NIGHT
56°F
S 2 mph
precip
58%
08.22
sat
DAY
72°F
NE 2 mph
precip
2%
NIGHT
56°F
E 8 mph
precip
11%
08.23
sun
DAY
68°F
S 4 mph
precip
11%
NIGHT
56°F
NW 4 mph
precip
24%
08.24
mon
DAY
54°F
NW 13 mph
precip
88%
NIGHT
68°F
N 7 mph
precip
47%
08.25
tue
DAY
76°F
NE 18 mph
precip
30%
NIGHT
58°F
E 12 mph
precip
10%

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

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for St. John's was 13.1°F. The maximum and minimum values were 11.8°F and 14.9°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 66.1 °F
September 61.4 °F
Warmest sea temperature:
August 60.3 °F
September 57.8 °F
July 53.0 °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
more details