September weather forecastEl Centro, CA
September
Weather in September
September, the first month of the autumn in El Centro, is still a very hot month, with an average temperature varying between 99.1°F (37.3°C) and 79.9°F (26.6°C).Temperature
As El Centro, California, enters September, the average high-temperature subtly lowers from the an extremely hot 106.2°F (41.2°C) of August to a very hot 99.1°F (37.3°C). An average nighttime temperature of 79.9°F (26.6°C) is noted during the month of September.Humidity
In September, the average relative humidity in El Centro, California, is 26%.Rainfall
The months with the most rainfall in El Centro are March, April, July through September and December, with an average 0.08" (2mm) 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 6:17 am and sunset at 7:06 pm. On the last day of September, sunrise is at 6:36 am and sunset at 6:27 pm PDT.
Sunshine
In September, the average sunshine is 10.2h.UV index
In September, the average daily maximum UV index is 8. A UV Index estimate of 8 to 10 represents a very high health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 8 during September translates into these guidelines:
Take special precautions, as unprotected skin can be damaged and can burn quickly. 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. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
El Centro, CA
- Average high temperature in September: 99.1°F
The warmest month (with the highest average high temperature) is July (106.7°F).
The month with the lowest average high temperature is December (66.4°F).
- Average low temperature in September: 79.9°F
The month with the highest average low temperature is August (85.5°F).
The coldest month (with the lowest average low temperature) is January (49.8°F).
Average pressure in September
El Centro, CA
- Average pressure in September: 29.81"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.78"Hg).
Average wind speed in September
El Centro, CA
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is January (5.2mph).
Average humidity in September
El Centro, CA
- Average humidity in September: 26%
The month with the highest relative humidity is December (40%).
The month with the lowest relative humidity is June (21%).
Average rainfall in September
El Centro, CA
- Average rainfall in September: 0.08"
The wettest months (with the highest rainfall) are March, April, July, August, September and December (0.08").
The driest months (with the least rainfall) are May and June (0").
Average rainfall days in September
El Centro, CA
- Average rainfall days in September: 1.9 days
The month with the highest number of rainy days is July (2.8 days).
The month with the least rainy days is May (0.3 days).
Average daylight in September /
Average sunshine in September
El Centro, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 10h and 12min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in September
El Centro, CA
- Average sunshine days in September: 26.6 days
The month with the most sunshine days is May (30.4 days).
The month with the least sunshine days is August (25.8 days).
Average UV index in September
El Centro, CA
- Average UV index in September: 8
The months with the highest UV index are July and August (UV index 9).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
El Centro, CA
- Average cloud cover in September: 6
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 4).
Average visibility in September
El Centro, 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).
