September weather forecastHenley Harbour, Canada
September
Weather in September
September, the first month of the autumn in Henley Harbour, is still a cool month, with an average temperature ranging between max 11.9°C (53.4°F) and min 6.6°C (43.9°F).Temperature
With the commencement of September, Henley Harbour records a moderate temperature decline, with the average high easing from August's enjoyable 16.3°C (61.3°F) to a fresh 11.9°C (53.4°F). The nighttime temperature in Henley Harbour, during September, averages of 6.6°C (43.9°F).Humidity
September is the least humid month in Henley Harbour, with an average relative humidity of 79%.Rainfall
In Henley Harbour, Canada, in September, it is raining for 11.1 days, with typically 39mm (1.54") of accumulated precipitation. Throughout the year, in Henley Harbour, there are 109.5 rainfall days, and 630mm (24.8") of precipitation is accumulated.Snowfall
In Henley Harbour, snow does not fall in June through September.Daylight
In Henley Harbour, the average length of the day in September is 12h and 38min.On the first day of September, sunrise is at 6:26 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:52 pm NDT.
Sunshine
In Henley Harbour, the average sunshine in September is 6.9h.UV index
In September, the average daily maximum UV index in Henley Harbour is 3. 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: A maximum daily UV index of 3 during September morphs into the following directions:
Exercise prevention - Warding off sunburn is urged. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Henley Harbour, Canada
- Average high temperature in September: 11.9°C
The warmest month (with the highest average high temperature) is August (16.3°C).
The month with the lowest average high temperature is February (-7.1°C).
- Average low temperature in September: 6.6°C
The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is February (-14.2°C).
Average pressure in September
Henley Harbour, Canada
- Average pressure in September: 1012.1mbar
The month with the highest atmospheric pressure is May (1014.2mbar).
The month with the lowest atmospheric pressure is January (1005.6mbar).
Average wind speed in September
Henley Harbour, Canada
- Average wind speed in September: 20.4km/h
The windiest month (with the highest average wind speed) is December (25.5km/h).
The calmest month (with the lowest average wind speed) is August (17.1km/h).
Average humidity in September
Henley Harbour, Canada
- Average humidity in September: 79%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is September (79%).
Average rainfall in September
Henley Harbour, Canada
- Average rainfall in September: 39mm
The wettest month (with the highest rainfall) is November (90mm).
The driest month (with the least rainfall) is July (22mm).
Average rainfall days in September
Henley Harbour, Canada
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Henley Harbour, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is March (160mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Henley Harbour, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (16.9 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Henley Harbour, Canada
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in September: 6h and 54min
The month with the most sunshine is July (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in September
Henley Harbour, Canada
- Average sunshine days in September: 18 days
The month with the most sunshine days is July (22.5 days).
The month with the least sunshine days is March (8.4 days).
Average UV index in September
Henley Harbour, Canada
- Average UV index in September: 3
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Henley Harbour, Canada
- Average cloud cover in September: 51
The month with the most cloud cover is March (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 49).
Average visibility in September
Henley Harbour, Canada
- Average visibility in September: 10km
The month with the highest visibility is September (10km).
The months with the lowest visibility are January, February, March, April, November and December (8km).
