August weather forecastCharlottetown, Canada
August
Weather in August
As the summer season progresses, August maintains the warm weather trend established in July. Despite a slight decrease in average high temperatures from July, the reduction is largely unfelt, making August another hot month. The humidity remains constant rendering this month perfect for outdoor activities and gatherings. A reduction in cloud cover from 40% in July to 35% in August paves the way for clearer skies. Sticking out among the statistics, sea temperatures hit an annual high of 18.3°C (64.9°F) in August, further enhancing the summer feel.Temperature
Charlottetown's temperature records reveal August as the warmest month, marked by average highs of 21.6°C (70.9°F) and lows of 16.8°C (62.2°F).Humidity
In August, the average relative humidity is 79%.Rainfall
In Charlottetown, during August, the rain falls for 14 days and regularly aggregates up to 60mm (2.36") of precipitation. In Charlottetown, during the entire year, the rain falls for 144.1 days and collects up to 715mm (28.15") of precipitation.Snowfall
In Charlottetown, snow does not fall in June through October.Sea temperature
The month with the warmest seawater is August, with an average sea temperature of 18.3°C (64.9°F).Note: A majority do not enjoy swimming in water at 18.3°C (64.9°F). The difficulty in controlling breathing increases progressively as the temperature dips below 21°C (69.8°F).
Daylight
In August, the average length of the day is 14h and 7min.On the first day of August in Charlottetown, sunrise is at 5:55 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 7:52 pm ADT.
Sunshine
The month with the most sunshine is August, with an average of 9.5h of sunshine.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high UV index of 5 in August translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Charlottetown, Canada
- Average high temperature in August: 21.6°C
The warmest month (with the highest average high temperature) is August (21.6°C).
The month with the lowest average high temperature is February (-3.1°C).
- Average low temperature in August: 16.8°C
The month with the highest average low temperature is August (16.8°C).
The coldest month (with the lowest average low temperature) is February (-8.3°C).
Average pressure in August
Charlottetown, Canada
- Average pressure in August: 1013.8mbar
The month with the highest atmospheric pressure is September (1016.3mbar).
The month with the lowest atmospheric pressure is February (1011.8mbar).
Average wind speed in August
Charlottetown, Canada
- Average wind speed in August: 16.1km/h
The windiest month (with the highest average wind speed) is December (23.5km/h).
The calmest month (with the lowest average wind speed) is July (15.2km/h).
Average humidity in August
Charlottetown, Canada
- Average humidity in August: 79%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are September and October (78%).
Average rainfall in August
Charlottetown, Canada
- Average rainfall in August: 60mm
The wettest month (with the highest rainfall) is November (82mm).
The driest month (with the least rainfall) is March (47mm).
Average rainfall days in August
Charlottetown, Canada
- Average rainfall days in August: 14 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in August
Charlottetown, Canada
- Average snowfall in August: 0mm
The month with the highest snowfall is December (121mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in August
Charlottetown, Canada
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in August
Charlottetown, Canada
- Average sea temperature in August: 18.3°C
The best month for swimming (with the highest average sea temperature) is August (18.3°C).
The coldest months (with the lowest average sea temperature) are February and March (-1.1°C).
Average daylight in August /
Average sunshine in August
Charlottetown, Canada
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in August: 9h and 30min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in August
Charlottetown, Canada
- Average sunshine days in August: 14.5 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is December (7.4 days).
Average UV index in August
Charlottetown, Canada
- Average UV index in August: 5
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are March and December (UV index 1).
Average cloud cover in August
Charlottetown, Canada
- Average cloud cover in August: 35
The months with the most cloud cover are January and December (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in August
Charlottetown, Canada
- Average visibility in August: 10km
The months with the highest visibility are August, September and October (10km).
The months with the lowest visibility are January, February, March and December (8km).





