September weather forecast and climate
Indio, CA

Roads and houses in a residential estate in Indio, California
Roads and houses in a residential estate in Indio, California

Weather in September

September, the first month of the autumn, in Indio, is still a tropical month, with average temperature varying between 88.5°F (31.4°C) and 71.6°F (22°C).

Temperature

In Indio, the average high-temperature marginally drops, from a very hot 95°F (35°C) in August, to a tropical 88.5°F (31.4°C). The average low-temperature, in Indio, is 71.6°F (22°C).

Humidity

The average relative humidity in Indio is 31%.

Rainfall

In Indio, California, during 4.9 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, in Indio, there are 43.4 rainfall days, and 4.21" (107mm) of precipitation is accumulated.

Daylight

In September, the average length of the day in Indio is 12.4h.

Sunshine

The average sunshine in Indio, California, is 10.5h.

UV index

The average daily maximum UV index in Indio, California, is 6. A UV Index estimate of 6 to 7 represents a high threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in September interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Indio?

The average high-temperature, in September, in Indio, is 88.5°F (31.4°C), while the average low-temperature is 71.6°F (22°C).

What is the average humidity in September in Indio?

In Indio, the average relative humidity in September is 31%.

How many days does it rain in September in Indio?

In Indio, California, in September, it is raining for 4.9 days, with typically 0.39" (10mm) of accumulated precipitation.

How many hours of daylight does Indio have in September?

The average length of the day in September in Indio, California, is 12.4h.

How many hours of sunshine does Indio have in September?

In Indio, California, the average sunshine in September is 10.5h.

What is the UV index reading in September in Indio?

In September, the average daily maximum UV index in Indio, California, is 6. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to the UV radiation.

Average temperature in September
Indio, CA

Average temperature in September - Indio, CA
  • Average high temperature in September: 88.5°F

The warmest month (with the highest average high temperature) is July (95.7°F).
The month with the lowest average high temperature is December (59.7°F).

  • Average low temperature in September: 71.6°F

The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is December (45.9°F).

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Average pressure in September
Indio, CA

Average pressure in September - Indio, CA
  • Average pressure in September: 29.83"

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.8").

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Average wind speed in September
Indio, CA

Average wind speed in September - Indio, CA
  • Average wind speed in September: 6.4mph

The windiest months (with the highest average wind speed) are April and May (8.3mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).

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Average humidity in September
Indio, CA

Average humidity in September - Indio, CA
  • Average humidity in September: 31%

The month with the highest relative humidity is December (46%).
The month with the lowest relative humidity is June (27%).

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Average rainfall in September
Indio, CA

Average rainfall in September - Indio, CA
  • Average rainfall in September: 0.39"

The wettest months (with the highest rainfall) are July and August (0.63").
The driest months (with the least rainfall) are May and June (0.08").

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Average rainfall days in September
Indio, CA

Average rainfall days in September - Indio, CA
  • Average rainfall days in September: 4.9 days

The month with the highest number of rainy days is July (5.9 days).
The month with the least rainy days is June (0.9 days).

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Average daylight in September /
Average sunshine in September
Indio, CA

Average daylight in September / Average sunshine in September - Indio, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 10.5h

The month with the most sunshine is June (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 7.1h).

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Average sunshine days in September
Indio, CA

Average sunshine days in September - Indio, CA
  • Average sunshine days in September: 23.3 days

The month with the most sunshine days is May (28.4 days).
The month with the least sunshine days is July (20.8 days).

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Average UV index in September
Indio, CA

Average UV index in September - Indio, CA
  • Average UV index in September: 6

Months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
Indio, CA

Average cloud cover in September - Indio, 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
Indio, CA

Average visibility in September - Indio, CA
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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