September weather forecast
El Centro, CA

Weather in September

The first month of the autumn, September, is still a very hot month in El Centro, California, with temperature in the range of an average high of 99.1°F (37.3°C) and an average low of 79.9°F (26.6°C).

Temperature

In El Centro, California, the average high-temperature in September marginally drops from a scorching 106.2°F (41.2°C) in August to a torrid 99.1°F (37.3°C). In El Centro, in September, the average low-temperature is 79.9°F (26.6°C).

Humidity

In September, the average relative humidity in El Centro is 26%.

Rainfall

The wettest months in El Centro are March, April, July through September and December, with an average 0.08" (2mm) of rainfall.

Daylight

The average length of the day in September in El Centro is 12h and 22min.
On the first day of the month, sunrise is at 6:16 am and sunset at 7:07 pm. On the last day of September, sunrise is at 6:35 am and sunset at 6:28 pm PDT.

Sunshine

In September, the average sunshine is 10.2h.

UV index

In El Centro, the average daily maximum UV index in September is 8. A UV Index value of 8 to 10 symbolizes a very high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 8 in September transform into the following instructions:
Take special precautions, as unprotected skin can be damaged and can burn quickly. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect 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.
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FAQ

What is the temperature in September in El Centro?

The average high-temperature, in September, in El Centro, is 99.1°F (37.3°C), while the average low-temperature is 79.9°F (26.6°C).

What is the average humidity in September in El Centro?

The average relative humidity in September is 26%.

What is the wettest month in El Centro?

The wettest months in El Centro, California, are March, April, July through September and December, with an average 0.08" (2mm) of rainfall.

How much does it rain in El Centro in September?

In El Centro, during September, the rain falls for 1.9 days and regularly aggregates up to 0.08" (2mm) of precipitation.

How many hours of daylight does El Centro have in September?

The average day length in September in El Centro is 12h and 22min.

When are sunrise and sunset in September in El Centro?

In September, on the first day of the month, sunrise is at 6:16 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 6:28 pm PDT.

How many hours of sunshine does El Centro have in September?

In September, the average sunshine duration is 10.2h.

What is the UV index reading in September in El Centro?

The average daily maximum UV index in September in El Centro is 8. A UV Index estimate of 8 to 10 represents a very high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
El Centro, CA

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).

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Average pressure in September
El Centro, CA

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).

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Average wind speed in September
El Centro, CA

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).

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Average humidity in September
El Centro, CA

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%).

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Average rainfall in September
El Centro, CA

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").

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Average rainfall days in September
El Centro, CA

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).

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Average daylight in September /
Average sunshine in September
El Centro, CA

Average daylight in September / Average sunshine in September - El Centro, CA
  • Average daylight in September: 12h and 2min

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 1min

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).

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Average sunshine days in September
El Centro, CA

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).

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Average UV index in September
El Centro, CA

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).

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Average cloud cover in September
El Centro, CA

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).

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Average visibility in September
El Centro, CA

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).

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