September weather forecastWelland, Canada
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Welland, Canada, with an average temperature varying between 21.8°C (71.2°F) and 14.2°C (57.6°F).Temperature
Welland's September weather shows a modest shift in high-temperatures, falling from August's moderately hot 25°C (77°F) to an agreeable 21.8°C (71.2°F). During the nights in September, Welland observes an average low-temperature of 14.2°C (57.6°F).Humidity
The least humid month is September, with an average relative humidity of 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 14.8 days and typically collects 53mm (2.09") of precipitation.Snowfall
In Welland, snow does not fall in June through September.Daylight
In Welland, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:13 am and sunset at 6:59 pm EDT.
Sunshine
The average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Adopt protective measures - It is advised to guard against sun damage. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Welland, Canada
- Average high temperature in September: 21.8°C
The warmest month (with the highest average high temperature) is July (25.7°C).
The month with the lowest average high temperature is January (-1.5°C).
- Average low temperature in September: 14.2°C
The month with the highest average low temperature is July (17.5°C).
The coldest month (with the lowest average low temperature) is January (-6.7°C).
Average pressure in September
Welland, Canada
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).
Average wind speed in September
Welland, Canada
- Average wind speed in September: 12.9km/h
The windiest month (with the highest average wind speed) is January (19.6km/h).
The calmest month (with the lowest average wind speed) is July (11.6km/h).
Average humidity in September
Welland, Canada
- Average humidity in September: 75%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is September (75%).
Average rainfall in September
Welland, Canada
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is July (86mm).
The driest month (with the least rainfall) is September (53mm).
Average rainfall days in September
Welland, Canada
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is July (18.7 days).
The months with the least rainy days are January and February (8.1 days).
Average snowfall in September
Welland, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is February (179mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Welland, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Welland, Canada
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in September
Welland, Canada
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is September (12.6 days).
The month with the least sunshine days is January (8.3 days).
Average UV index in September
Welland, Canada
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Welland, Canada
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Welland, Canada
- Average visibility in September: 10km
The month with the highest visibility is September (10km).
The months with the lowest visibility are January and February (8km).
