Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The start of September involves a subtle temperature drop, shifting from a torrid 95°F (35°C) in August to a tropical 88.5°F (31.4°C). Throughout September, the average low-temperature records at an agreeable 71.6°F (22°C).Humidity
The average relative humidity in September is 31%.Rainfall
In Indio Hills, in September, during 4.9 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. Throughout the year, there are 43.4 rainfall days, and 4.21" (107mm) of precipitation is accumulated.Daylight
In Indio Hills, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:10 pm. On the last day of September, sunrise is at 6:39 am and sunset at 6:30 pm PDT.
Sunshine
In September, the average sunshine is 10.5h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 6 in September transforms into this advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Indio Hills have in September?
When are sunrise and sunset in September?
How long on average sun shines in September in Indio Hills?
What is the UV index intensity in September?
Average temperature in September
Indio Hills, 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).
Average pressure in September
Indio Hills, CA
- Average pressure in September: 29.83"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in September
Indio Hills, 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).
Average humidity in September
Indio Hills, 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%).
Average rainfall in September
Indio Hills, 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").
Average rainfall days in September
Indio Hills, 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).
Average daylight in September /
Average sunshine in September
Indio Hills, CA
- Average daylight in September: 12h and 2min
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 3min
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
Indio Hills, 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).
Average UV index in September
Indio Hills, CA
- Average UV index in September: 6
The 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).
Average cloud cover in September
Indio Hills, 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
Indio Hills, 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).
Indio Hills, California, USA
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