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 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
September's advent presents an average high-temperature of a still warm 78.6°F (25.9°C), indicating a slight variation from the conditions of the previous month. Throughout September, Del Aire encounters an average temperature drop to a refreshing 63.9°F (17.7°C).Humidity
The average relative humidity in September in Del Aire is 64%.Rainfall
In Del Aire, during September, the rain falls for 1.8 days and regularly aggregates up to 0.08" (2mm) of precipitation. In Del Aire, during the entire year, the rain falls for 33 days and collects up to 3.11" (79mm) of precipitation.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:18 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:38 pm PDT.
Sunshine
The average sunshine in September in Del Aire is 10.5h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 6 in September translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Del Aire?
What is the average humidity in September in Del Aire?
How much does it rain in Del Aire in September?
How many hours of daylight does Del Aire have in September?
When are sunrise and sunset in September in Del Aire?
How many hours of sunshine does Del Aire have in September?
What are the months with the highest UV index in Del Aire?
What is the UV index reading in September in Del Aire?
Average temperature in September
Del Aire, CA
- Average high temperature in September: 78.6°F
The warmest month (with the highest average high temperature) is August (79.3°F).
The month with the lowest average high temperature is December (63.9°F).
- Average low temperature in September: 63.9°F
The month with the highest average low temperature is August (64.6°F).
The coldest month (with the lowest average low temperature) is February (51.4°F).
Average pressure in September
Del Aire, CA
- Average pressure in September: 29.9"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in September
Del Aire, CA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Del Aire, CA
- Average humidity in September: 64%
The month with the highest relative humidity is June (72%).
The month with the lowest relative humidity is November (55%).
Average rainfall in September
Del Aire, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is February (0.63").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in September
Del Aire, CA
- Average rainfall days in September: 1.8 days
The month with the highest number of rainy days is March (5.9 days).
The months with the least rainy days are June and August (0.9 days).
Average daylight in September /
Average sunshine in September
Del Aire, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 10h and 3min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 42min).
Average sunshine days in September
Del Aire, CA
- Average sunshine days in September: 27.2 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is February (23.6 days).
Average UV index in September
Del Aire, CA
- Average UV index in September: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in September
Del Aire, CA
- Average cloud cover in September: 11
The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in September
Del Aire, CA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Del Aire, California, USA
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