September weather forecastPenticton, Canada
September
Weather in September
September, the first month of the autumn in Penticton, is still a refreshing month, with an average temperature ranging between min 4.3°C (39.7°F) and max 18.5°C (65.3°F).Temperature
The arrival of September corresponds with a temperature reduction, down from August's warm 24.9°C (76.8°F) to a comfortable 18.5°C (65.3°F). The temperature notes a substantial fall from the daily peak to an average of 4.3°C (39.7°F) during September nights.Humidity
In September, the average relative humidity in Penticton is 64%.Rainfall
In September, in Penticton, the rain falls for 7.1 days. Throughout September, 12mm (0.47") of precipitation is accumulated. Throughout the year, in Penticton, there are 106 rainfall days, and 136mm (5.35") of precipitation is accumulated.Snowfall
In Penticton, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 6:15 am and sunset at 7:40 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:38 pm PDT.
Sunshine
In Penticton, the average sunshine in September is 10.4h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Penticton, Canada
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is December (-2.6°C).
- Average low temperature in September: 4.3°C
The month with the highest average low temperature is August (7.8°C).
The coldest month (with the lowest average low temperature) is February (-11.3°C).
Average pressure in September
Penticton, Canada
- Average pressure in September: 1015.4mbar
The month with the highest atmospheric pressure is January (1021.6mbar).
The month with the lowest atmospheric pressure is June (1013.8mbar).
Average wind speed in September
Penticton, Canada
- Average wind speed in September: 6.8km/h
The windiest month (with the highest average wind speed) is November (8.2km/h).
The calmest month (with the lowest average wind speed) is August (6.5km/h).
Average humidity in September
Penticton, Canada
- Average humidity in September: 64%
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (55%).
Average rainfall in September
Penticton, Canada
- Average rainfall in September: 12mm
The wettest months (with the highest rainfall) are May and June (14mm).
The driest month (with the least rainfall) is August (6mm).
Average rainfall days in September
Penticton, Canada
- Average rainfall days in September: 7.1 days
The month with the highest number of rainy days is March (11.7 days).
The month with the least rainy days is August (4.8 days).
Average snowfall in September
Penticton, Canada
- Average snowfall in September: 0mm
The month with the highest snowfall is December (57mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Penticton, Canada
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Penticton, Canada
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 10h and 24min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Penticton, Canada
- Average sunshine days in September: 21.2 days
The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is February (13.3 days).
Average UV index in September
Penticton, Canada
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in September
Penticton, Canada
- Average cloud cover in September: 27
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Penticton, Canada
- Average visibility in September: 9km
The months with the highest visibility are July and August (10km).
The months with the lowest visibility are January and February (5km).





