September weather forecastEl Segundo, CA
September
Weather in September
September, the first month of the autumn in El Segundo, is still a warm month, with an average temperature varying between 63.9°F (17.7°C) and 78.6°F (25.9°C).Temperature
As El Segundo transitions from August to September, the average high-temperatures adjust to a still warm 78.6°F (25.9°C), nearly the same as the previous 79.3°F (26.3°C). In September, El Segundo experiences a temperature dip to an average of 63.9°F (17.7°C) at night.Humidity
In September, the average relative humidity is 64%.Rainfall
In El Segundo, in September, it is raining for 1.8 days, with typically 0.08" (2mm) of accumulated precipitation. In El Segundo, 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 September, sunrise is at 6:27 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:38 pm PDT.
Sunshine
In September, the average sunshine in El Segundo is 10.5h.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 6 suggests this advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
El Segundo, 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
El Segundo, 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
El Segundo, 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
El Segundo, 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
El Segundo, 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
El Segundo, 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
El Segundo, CA
- Average daylight in September: 12h and 24min
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 30min
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
El Segundo, 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
El Segundo, 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
El Segundo, 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
El Segundo, 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).
