September weather forecastDel Rey, CA
September
Weather in September
The first month of the autumn, September, is still a tropical month in Del Rey, California, with temperature in the range of an average high of 91.6°F (33.1°C) and an average low of 61.7°F (16.5°C).Temperature
September signals a slight drop in average high-temperature, sliding from August's torrid 97.9°F (36.6°C) to a hot 91.6°F (33.1°C). September witnesses a substantial contrast between the daytime highs and the average low of 61.7°F (16.5°C).Humidity
The average relative humidity in September is 31%.Rainfall
In Del Rey, in September, during 2.3 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. Throughout the year, in Del Rey, there are 62.3 rainfall days, and 14.72" (374mm) of precipitation is accumulated.Daylight
In Del Rey, the average length of the day in September is 12h and 24min.On the first day of September in Del Rey, sunrise is at 6:30 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:42 pm PDT.
Sunshine
In September, the average sunshine is 11.2h.UV index
In September, the average daily maximum UV index in Del Rey is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Del Rey, CA
- Average high temperature in September: 91.6°F
The warmest month (with the highest average high temperature) is July (98.8°F).
The month with the lowest average high temperature is December (56.1°F).
- Average low temperature in September: 61.7°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is December (41.2°F).
Average pressure in September
Del Rey, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Del Rey, CA
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is June (5.2mph).
The calmest months (with the lowest average wind speed) are January, November and December (3.7mph).
Average humidity in September
Del Rey, CA
- Average humidity in September: 31%
The month with the highest relative humidity is January (65%).
The months with the lowest relative humidity are July and August (29%).
Average rainfall in September
Del Rey, CA
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is March (2.91").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in September
Del Rey, CA
- Average rainfall days in September: 2.3 days
The month with the highest number of rainy days is March (11.3 days).
The month with the least rainy days is August (1.2 days).
Average daylight in September /
Average sunshine in September
Del Rey, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 11h and 12min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Del Rey, CA
- Average sunshine days in September: 26.6 days
The month with the most sunshine days is August (28.5 days).
The month with the least sunshine days is March (18.8 days).
Average UV index in September
Del Rey, CA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in September
Del Rey, CA
- Average cloud cover in September: 5
The month with the most cloud cover is March (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in September
Del Rey, 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).
