Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With September's onset, the weather reveals a slight temperature decrease, transitioning from a pleasant 21.6°C (70.9°F) in August to a refreshing 17.6°C (63.7°F). The temperature in Charlottetown during September sees a subtle transition from day to night, averaging a low of 13.5°C (56.3°F).Humidity
The months with the lowest humidity in Charlottetown are September and October, with an average relative humidity of 78%.Rainfall
In September, the rain falls for 12 days. Throughout September, 50mm (1.97") of precipitation is accumulated. Throughout the year, in Charlottetown, there are 144.1 rainfall days, and 715mm (28.15") of precipitation is accumulated.Snowfall
June through October are months without snowfall.Sea temperature
In Charlottetown, in September, the average water temperature is 15.8°C (60.4°F).Note: A majority do not enjoy swimming in water at 15.8°C (60.4°F). The difficulty in controlling breathing increases progressively as the temperature dips below 21°C (69.8°F).
Daylight
In September, the average length of the day in Charlottetown is 12h and 32min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:10 am and sunset at 6:53 pm ADT.
Sunshine
The average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What are the temperatures in Charlottetown in September?
What are the least humid months in Charlottetown?
What is the average humidity in September in Charlottetown?
How much does it rain in Charlottetown in September?
When it does not snow in Charlottetown?
What is the sea temperature in September in Charlottetown?
What is the average length of the day in September in Charlottetown?
When are sunrise and sunset in September in Charlottetown?
How many hours of sunshine does Charlottetown have in September?
How high is the UV index in September in Charlottetown?
Average temperature in September
Charlottetown, Canada
- Average high temperature in September: 17.6°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 September: 13.5°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 September
Charlottetown, Canada
- Average pressure in September: 1016.3mbar
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 September
Charlottetown, Canada
- Average wind speed in September: 18.7km/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 September
Charlottetown, Canada
- Average humidity in September: 78%
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 September
Charlottetown, Canada
- Average rainfall in September: 50mm
The wettest month (with the highest rainfall) is November (82mm).
The driest month (with the least rainfall) is March (47mm).
Average rainfall days in September
Charlottetown, Canada
- Average rainfall days in September: 12 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 September
Charlottetown, Canada
- Average snowfall in September: 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 September
Charlottetown, Canada
- Average snowfall days in September: 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 September
Charlottetown, Canada
- Average sea temperature in September: 15.8°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 September /
Average sunshine in September
Charlottetown, Canada
- Average daylight in September: 12h and 3min
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 September: 8h and 1min
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 September
Charlottetown, Canada
- Average sunshine days in September: 15.4 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 September
Charlottetown, Canada
- Average UV index in September: 4
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 September
Charlottetown, Canada
- Average cloud cover in September: 40
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 September
Charlottetown, Canada
- Average visibility in September: 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).
Charlottetown, Canada
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