08.08
sat
sat
Day
84°F
W 19 mph
Precip.
16%
16%
Night
82°F
W 18 mph
Precip.
27%
27%
09.08
sun
sun
Day
84°F
W 17 mph
Precip.
18%
18%
Night
82°F
W 17 mph
Precip.
16%
16%
10.08
mon
mon
Day
84°F
W 14 mph
Precip.
6%
6%
Night
82°F
W 15 mph
Precip.
8%
8%
11.08
tue
tue
Day
82°F
W 18 mph
Precip.
19%
19%
Night
82°F
W 18 mph
Precip.
14%
14%
12.08
wed
wed
Day
82°F
W 22 mph
Precip.
25%
25%
Night
82°F
W 21 mph
Precip.
16%
16%
13.08
thu
thu
Day
82°F
W 23 mph
Precip.
11%
11%
Night
82°F
W 25 mph
Precip.
17%
17%
14.08
fri
fri
Day
84°F
W 23 mph
Precip.
22%
22%
Night
82°F
W 25 mph
Precip.
30%
30%
15.08
sat
sat
Day
82°F
W 25 mph
Precip.
16%
16%
Night
82°F
W 24 mph
Precip.
27%
27%
16.08
sun
sun
Day
82°F
W 22 mph
Precip.
10%
10%
Night
82°F
SW 21 mph
Precip.
18%
18%
17.08
mon
mon
Day
82°F
SW 24 mph
Precip.
24%
24%
Night
81°F
N 20 mph
Precip.
56%
56%
18.08
tue
tue
Day
82°F
NW 22 mph
Precip.
51%
51%
Night
82°F
NW 21 mph
Precip.
18%
18%
19.08
wed
wed
Day
82°F
NW 21 mph
Precip.
11%
11%
Night
82°F
W 19 mph
Precip.
9%
9%
20.08
thu
thu
Day
82°F
NW 16 mph
Precip.
7%
7%
Night
82°F
W 18 mph
Precip.
13%
13%
21.08
fri
fri
Day
82°F
NW 17 mph
Precip.
9%
9%
Night
81°F
W 16 mph
Precip.
9%
9%
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 August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 84.7°F. The highest and lowest sea temperatures during the month were 85.5°F and 84.2°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
24 Hours Forecast
St John's
Local time: 21:16
August 09, sunday
0000
82°F
W
18 mph
18 mph
0300
82°F
W
18 mph
18 mph
0600
82°F
W
17 mph
17 mph
0900
82°F
W
19 mph
19 mph
1200
84°F
W
17 mph
17 mph
1500
84°F
W
17 mph
17 mph
1800
82°F
W
17 mph
17 mph
2100
82°F
W
17 mph
17 mph
