September weather forecastPorter Landing, Canada
September
Weather in September
The first month of the autumn, September, is still a chilly month in Porter Landing, Canada, with an average temperature fluctuating between 9.6°C (49.3°F) and 1.3°C (34.3°F).Temperature
The start of September signals a decrease in the average high-temperature, transitioning from a moderate 14.8°C (58.6°F) in August to a chilly 9.6°C (49.3°F). Porter Landing's average low-temperature in September is measured at a wintry 1.3°C (34.3°F).Humidity
In September, the average relative humidity is 76%.Rainfall
In Porter Landing, Canada, in September, during 14.5 rainfall days, 26mm (1.02") of precipitation is typically accumulated. In Porter Landing, during the entire year, the rain falls for 115.5 days and collects up to 264mm (10.39") of precipitation.Snowfall
January through May, August through December are months with snowfall in Porter Landing. In Porter Landing, during September, snow falls for 2.6 days and regularly aggregates up to 15mm (0.59") of snow. In Porter Landing, during the entire year, snow falls for 111.9 days and aggregates up to 855mm (33.66") of snow.Daylight
The average length of the day in September in Porter Landing is 12h and 47min.On the first day of the month, sunrise is at 6:40 am and sunset at 8:39 pm. On the last day of September, sunrise is at 7:44 am and sunset at 7:15 pm PDT.
Sunshine
In September, the average sunshine in Porter Landing is 8.2h.UV index
In Porter Landing, Canada, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The average daily UV index of 2 in September transforms into the following instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Porter Landing, Canada
- Average high temperature in September: 9.6°C
The warmest month (with the highest average high temperature) is July (16.4°C).
The month with the lowest average high temperature is December (-10.5°C).
- Average low temperature in September: 1.3°C
The month with the highest average low temperature is July (5.3°C).
The coldest month (with the lowest average low temperature) is February (-17.3°C).
Average pressure in September
Porter Landing, Canada
- Average pressure in September: 1012.8mbar
The month with the highest atmospheric pressure is February (1018mbar).
The month with the lowest atmospheric pressure is June (1012.7mbar).
Average wind speed in September
Porter Landing, Canada
- Average wind speed in September: 9.9km/h
The windiest months (with the highest average wind speed) are January and June (10.3km/h).
The calmest month (with the lowest average wind speed) is February (8.8km/h).
Average humidity in September
Porter Landing, Canada
- Average humidity in September: 76%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is June (62%).
Average rainfall in September
Porter Landing, Canada
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is August (40mm).
The driest month (with the least rainfall) is February (9mm).
Average rainfall days in September
Porter Landing, Canada
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is August (15.3 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in September
Porter Landing, Canada
- Average snowfall in September: 15mm
The month with the highest snowfall is November (195mm).
The months with the least snowfall are June and July (0mm).
Average snowfall days in September
Porter Landing, Canada
- Average snowfall days in September: 2.6 days
The month with the highest number of snowfall days is November (17.9 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in September /
Average sunshine in September
Porter Landing, Canada
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 18min).
The month with the shortest days is December (Average daylight: 6h and 24min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Porter Landing, Canada
- Average sunshine days in September: 12.7 days
The months with the most sunshine days are May and December (16.1 days).
The month with the least sunshine days is April (12.2 days).
Average UV index in September
Porter Landing, Canada
- Average UV index in September: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, March and November (UV index 1).
Average cloud cover in September
Porter Landing, Canada
- Average cloud cover in September: 44
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is May (Cloud cover 38).
Average visibility in September
Porter Landing, Canada
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February, March and December (7km).
