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
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's warm 25.8°C (78.4°F) to a pleasant 22.4°C (72.3°F). During September, Windsor consistently records a temperature low averaging a refreshing 14.6°C (58.3°F).Humidity
The average relative humidity in September in Windsor is 74%.Rainfall
In Windsor, during September, the rain falls for 13.1 days and regularly aggregates up to 44mm (1.73") of precipitation. Throughout the year, there are 152.1 rainfall days, and 595mm (23.43") of precipitation is accumulated.Snowfall
In Windsor, snow does not fall in June through September.Sea temperature
In Windsor, Canada, the average seawater temperature in September is 21.4°C (70.5°F).Note: In water with a temperature of 21.4°C (70.5°F), swimming is not a joy for most people. The challenge of controlling breathing increases as the temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in September in Windsor is 12h and 28min.On the first day of the month, sunrise is at 6:58 am and sunset at 8:05 pm. On the last day of September, in Windsor, sunrise is at 7:28 am and sunset at 7:14 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
In Windsor, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 4 during September leads to these instructions:
Adopt protective measures - It is advised to guard against sun damage. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Windsor?
What is the average humidity in September in Windsor?
How many days does it rain in September in Windsor?
When it does not snow in Windsor?
Does it snow in Windsor in September?
What is the sea temperature in September in Windsor?
What is the average length of the day in September in Windsor?
When is the sunrise / sunset in September in Windsor?
How long on average sun shines in September in Windsor?
How high is the UV index in September in Windsor?
Average temperature in September
Windsor, Canada
- Average high temperature in September: 22.4°C
The warmest month (with the highest average high temperature) is July (26.6°C).
The month with the lowest average high temperature is January (-1.5°C).
- Average low temperature in September: 14.6°C
The month with the highest average low temperature is July (18.8°C).
The coldest month (with the lowest average low temperature) is January (-6.9°C).
Average pressure in September
Windsor, Canada
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is November (1019.2mbar).
The month with the lowest atmospheric pressure is June (1013.5mbar).
Average wind speed in September
Windsor, Canada
- Average wind speed in September: 12.8km/h
The windiest month (with the highest average wind speed) is January (16.9km/h).
The calmest month (with the lowest average wind speed) is July (10.9km/h).
Average humidity in September
Windsor, Canada
- Average humidity in September: 74%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (73%).
Average rainfall in September
Windsor, Canada
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is May (73mm).
The driest month (with the least rainfall) is February (31mm).
Average rainfall days in September
Windsor, Canada
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in September
Windsor, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is January (109mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Windsor, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Windsor, Canada
- Average sea temperature in September: 21.4°C
The best month for swimming (with the highest average sea temperature) is August (24.1°C).
The coldest month (with the lowest average sea temperature) is February (0.4°C).
Average daylight in September /
Average sunshine in September
Windsor, Canada
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Windsor, Canada
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is February (10.7 days).
Average UV index in September
Windsor, Canada
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Windsor, Canada
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in September
Windsor, Canada
- Average visibility in September: 9km
The month with the highest visibility is October (10km).
The month with the lowest visibility is January (8km).
Windsor, Canada
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