September weather forecast
Indian Wells, CA

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Rows of palm trees along a street in Indian Wells, California
Rows of palm trees along a street in Indian Wells, California

Weather in September

In Indian Wells, the month of September marks the official onset of fall. The temperatures vary from 68.2°F (20.1°C) to 87.1°F (30.6°C) and indicate a consistent fall from the summer peak. The journey from the hot summer months to the cool autumn season is further enhanced by a fall in UV index. The city experiences relatively moderate weather that strikes the perfect balance between the receding summer and approaching winter. The temperature decline promises the citizens more comfortable weather in the upcoming months.

Temperature

With the arrival of September, Indian Wells experiences a modest decline in average high-temperatures, transitioning from a hot 93.9°F (34.4°C) in August to a still tropical 87.1°F (30.6°C). Indian Wells encounters a steady low-temperature average of 68.2°F (20.1°C) throughout the month of September.

Humidity

The average relative humidity in September is 32%.

Rainfall

In Indian Wells, in September, it is raining for 6 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, in Indian Wells, California, there are 51.6 rainfall days, and 6.06" (154mm) of precipitation is accumulated.

Daylight

In Indian Wells, 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, in Indian Wells, sunrise is at 6:39 am and sunset at 6:30 pm PDT.

Sunshine

The average sunshine in September is 10.5h.

UV index

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.
Note: In September, an average UV index of 6 transforms into the following instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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Frequently asked questions

How hot is it in Indian Wells in September?

The high-temperature, in September, in Indian Wells, records 87.1°F (30.6°C), while the low-temperature is 68.2°F (20.1°C).

What is the average humidity in September in Indian Wells?

In Indian Wells, the average relative humidity in September is 32%.

How much does it rain in Indian Wells in September?

In Indian Wells, during September, the rain falls for 6 days and regularly aggregates up to 0.55" (14mm) of precipitation.

How many hours of daylight does Indian Wells have in September?

In Indian Wells, the average day length in September is 12h and 22min.

What time are sunrise and sunset in September in Indian Wells?

In September, on the first day of the month, sunrise is at 6:19 am and sunset at 7:10 pm. On the last day of the month, in Indian Wells, sunrise is at 6:39 am and sunset at 6:30 pm PDT.

How many hours of sunshine does Indian Wells have in September?

The average sunshine duration in September is 10.5h.

How high is the UV index in September in Indian Wells?

In Indian Wells, California, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Indian Wells, CA

Average temperature in September - Indian Wells, CA
  • Average high temperature in September: 87.1°F

The warmest month (with the highest average high temperature) is July (94.5°F).
The month with the lowest average high temperature is December (58.1°F).

  • Average low temperature in September: 68.2°F

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is December (43.5°F).

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Average pressure in September
Indian Wells, CA

Average pressure in September - Indian Wells, CA
  • Average pressure in September: 29.84"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).

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Average wind speed in September
Indian Wells, CA

Average wind speed in September - Indian Wells, CA
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is May (8.6mph).
The calmest month (with the lowest average wind speed) is January (5.8mph).

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Average humidity in September
Indian Wells, CA

Average humidity in September - Indian Wells, CA
  • Average humidity in September: 32%

The month with the highest relative humidity is December (47%).
The months with the lowest relative humidity are June, July and August (29%).

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Average rainfall in September
Indian Wells, CA

Average rainfall in September - Indian Wells, CA
  • Average rainfall in September: 0.55"

The wettest month (with the highest rainfall) is July (1.34").
The driest month (with the least rainfall) is May (0.12").

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Average rainfall days in September
Indian Wells, CA

Average rainfall days in September - Indian Wells, CA
  • Average rainfall days in September: 6 days

The month with the highest number of rainy days is July (8.8 days).
The month with the least rainy days is June (1.8 days).

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Average daylight in September /
Average sunshine in September
Indian Wells, CA

Average daylight in September / Average sunshine in September - Indian Wells, 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: 10h and 0min).

  • 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 0min).

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Average sunshine days in September
Indian Wells, CA

Average sunshine days in September - Indian Wells, CA
  • Average sunshine days in September: 22.3 days

The month with the most sunshine days is October (27.5 days).
The month with the least sunshine days is July (18.3 days).

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Average UV index in September
Indian Wells, CA

Average UV index in September - Indian Wells, CA
  • Average UV index in September: 6

The months with the highest UV index are 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
Indian Wells, CA

Average cloud cover in September - Indian Wells, CA
  • Average cloud cover in September: 6

The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).

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Average visibility in September
Indian Wells, CA

Average visibility in September - Indian Wells, 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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Indian Wells, California, USA

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