Weather in St. John's: August
![]() |
Average day temperature: | 66.0°F |
Average night temperature: | 59.4°F | |
![]() |
Sea water temperature: | 59.5°F |
![]() |
Number of sunny days: | 8 days |
Day length: | 13.4 - 14.9 hours | |
![]() |
Number of rainy days: | 3 days |
Precipitation totals: | 2.4 in. | |
more information |
forecast
St. John's |
temperature
St. John's |
Air temperature in August, °F
Day temperature | Night temperature |
The highest day temperature during August of 2024 was 77°F. At the same time the lowest night temperature was 50°F. Daily and nightly averages during August were 67.7°F and 59.1°F.
Sea water temperature in St. John's in August, °F
The average sea water temperature in August of 2024 was 60.9°F. The highest and lowest sea temperatures during the month were 62.8°F and 58.1°F.
Sunny days | |
Partly cloudy days | |
Cloudy days |
Mostly all days in August are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in August, in.
Precipitation total value in St. John's in August is 2.4 in. Other months of the year show relatively similar values.
The average wind speed value in August is 10.9 mph It makes August one of the least windy months of the year.
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 August is: 6.4.
Best time for vacation in St. John's
St. John's on a weather map

19 mph

24 mph

23 mph

21 mph

17 mph

21 mph

22 mph

23 mph