September weather forecastThessalon, Canada
September
Weather in September
September, the first month of the autumn in Thessalon, is still a comfortable month, with an average temperature fluctuating between 18.5°C (65.3°F) and 8.5°C (47.3°F).Temperature
In September, the meteorological conditions change slightly, with the average high-temperature moving from an agreeable 22.8°C (73°F) in August to a refreshing 18.5°C (65.3°F). In Thessalon, the nighttime temperature averages to a frosty 8.5°C (47.3°F) during September.Humidity
In Thessalon, Canada, the average relative humidity in September is 83%.Rainfall
In Thessalon, in September, it is raining for 13 days, with typically 54mm (2.13") of accumulated precipitation. Throughout the year, there are 126.3 rainfall days, and 586mm (23.07") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Thessalon.Sea temperature
In September, the average sea temperature is 17.3°C (63.1°F).Note: For most individuals, swimming in 17.3°C (63.1°F) is not enjoyable. As the water temperature decreases from 21°C (69.8°F) to 15°C (59°F), breathing control becomes increasingly difficult.
Daylight
In September, the average length of the day in Thessalon is 12h and 32min.On the first day of the month, sunrise is at 6:55 am and sunset at 8:12 pm. On the last day of September, in Thessalon, Canada, sunrise is at 7:32 am and sunset at 7:15 pm EDT.
Sunshine
In Thessalon, Canada, the average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index in Thessalon is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 3 in September transforms into the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Thessalon, Canada
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is July (23.3°C).
The month with the lowest average high temperature is January (-6.7°C).
- Average low temperature in September: 8.5°C
The month with the highest average low temperature is August (11.6°C).
The coldest months (with the lowest average low temperature) are January and February (-14.1°C).
Average pressure in September
Thessalon, Canada
- Average pressure in September: 1016.3mbar
The month with the highest atmospheric pressure is March (1018.9mbar).
The month with the lowest atmospheric pressure is June (1013.2mbar).
Average wind speed in September
Thessalon, Canada
- Average wind speed in September: 10km/h
The windiest month (with the highest average wind speed) is April (12.1km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity in September
Thessalon, Canada
- Average humidity in September: 83%
The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Thessalon, Canada
- Average rainfall in September: 54mm
The wettest month (with the highest rainfall) is October (84mm).
The driest month (with the least rainfall) is January (34mm).
Average rainfall days in September
Thessalon, Canada
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is October (15.5 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in September
Thessalon, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (240mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Thessalon, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (22.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Thessalon, Canada
- Average sea temperature in September: 17.3°C
The best month for swimming (with the highest average sea temperature) is August (19.3°C).
The coldest months (with the lowest average sea temperature) are February and March (0.8°C).
Average daylight in September /
Average sunshine in September
Thessalon, Canada
- Average daylight in September: 12h and 30min
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: 7h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).
Average sunshine days in September
Thessalon, Canada
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is July (16.2 days).
The month with the least sunshine days is January (9.3 days).
Average UV index in September
Thessalon, Canada
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Thessalon, Canada
- Average cloud cover in September: 44
The months with the most cloud cover are January and February (Cloud cover 78).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in September
Thessalon, Canada
- Average visibility in September: 8km
The months with the highest visibility are May and June (9km).
The months with the lowest visibility are January and February (6km).





