September weather forecastHarbour Breton, Canada
September
Weather in September
September, the first month of the autumn in Harbour Breton, is also a moderate month, with temperature in the range of an average high of 15.7°C (60.3°F) and an average low of 13.4°C (56.1°F).Temperature
Harbour Breton's average high-temperature in September sits at a moderate 15.7°C (60.3°F), showing little difference from the previous month. In September, Harbour Breton temperatures settle at a low of 13.4°C (56.1°F) during the nights, reflecting a minor change from daytime highs.Humidity
In September, the average relative humidity in Harbour Breton, Canada, is 81%.Rainfall
In Harbour Breton, Canada, in September, during 11.6 rainfall days, 53mm (2.09") of precipitation is typically accumulated. Throughout the year, there are 140.2 rainfall days, and 719mm (28.31") of precipitation is accumulated.Snowfall
In Harbour Breton, snow does not fall in June through October.Sea temperature
In Harbour Breton, the average seawater temperature in September is 13.7°C (56.7°F).Note: Staying in 13.7°C (56.7°F) waters for just a few moments at 13°C (55.4°F) can be harrowing, and below 10°C (50°F) poses breathing and cold shock risks, depending on individual tolerance.
Daylight
In September, the average length of the day is 12h and 33min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:11 am and sunset at 6:54 pm NDT.
Sunshine
In September, the average sunshine in Harbour Breton is 6.7h.UV index
In September, the average daily maximum UV index in Harbour Breton, Canada, is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Harbour Breton, Canada
- Average high temperature in September: 15.7°C
The warmest month (with the highest average high temperature) is August (17.9°C).
The month with the lowest average high temperature is February (-0.2°C).
- Average low temperature in September: 13.4°C
The month with the highest average low temperature is August (16.2°C).
The coldest month (with the lowest average low temperature) is February (-3.4°C).
Average pressure in September
Harbour Breton, Canada
- Average pressure in September: 1015.9mbar
The month with the highest atmospheric pressure is September (1015.9mbar).
The month with the lowest atmospheric pressure is February (1009.2mbar).
Average wind speed in September
Harbour Breton, Canada
- Average wind speed in September: 27.8km/h
The windiest month (with the highest average wind speed) is January (37.2km/h).
The calmest month (with the lowest average wind speed) is July (22.3km/h).
Average humidity in September
Harbour Breton, Canada
- Average humidity in September: 81%
The month with the highest relative humidity is July (89%).
The months with the lowest relative humidity are January, November and December (79%).
Average rainfall in September
Harbour Breton, Canada
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is May (50mm).
Average rainfall days in September
Harbour Breton, Canada
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is February (5.5 days).
Average snowfall in September
Harbour Breton, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is March (50mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Harbour Breton, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Harbour Breton, Canada
- Average sea temperature in September: 13.7°C
The best month for swimming (with the highest average sea temperature) is August (15.2°C).
The coldest month (with the lowest average sea temperature) is March (0.8°C).
Average daylight in September /
Average sunshine in September
Harbour Breton, Canada
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 6h and 42min
The month with the most sunshine is August (Average sunshine: 8h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).
Average sunshine days in September
Harbour Breton, Canada
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is August (15.8 days).
The month with the least sunshine days is December (9.2 days).
Average UV index in September
Harbour Breton, Canada
- Average UV index in September: 4
The month with the highest UV index is August (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover in September
Harbour Breton, Canada
- Average cloud cover in September: 45
The month with the most cloud cover is January (Cloud cover 80).
The months with the least cloud cover are August and September (Cloud cover 45).
Average visibility in September
Harbour Breton, 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, April, May, June, July, November and December (9km).
