September weather forecast
Cathedral City, CA

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Weather in September

The first month of the autumn, September, is still a tropical month in Cathedral City, California, with temperature in the range of an average low of 67.6°F (19.8°C) and an average high of 86.9°F (30.5°C).

Temperature

September ushers in a minute temperature change, with average high-temperatures reducing from August's hot 93.7°F (34.3°C) to a still tropical 86.9°F (30.5°C). During the month of September, Cathedral City's nighttime temperature lowers to an average of 67.6°F (19.8°C).

Humidity

The average relative humidity in September is 32%.

Rainfall

In Cathedral City, in September, it is raining for 6.1 days, with typically 0.55" (14mm) of accumulated precipitation. In Cathedral City, during the entire year, the rain falls for 54 days and collects up to 6.57" (167mm) of precipitation.

Daylight

In September, the average length of the day in Cathedral City is 12h and 22min.
On the first day of September in Cathedral City, California, sunrise is at 6:20 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:31 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 of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

How hot is it in Cathedral City in September?

The high-temperature, in September, in Cathedral City, records 86.9°F (30.5°C), while the low-temperature is 67.6°F (19.8°C).

What is the average humidity in September in Cathedral City?

In Cathedral City, the average relative humidity in September is 32%.

How many days does it rain in September in Cathedral City?

In Cathedral City, during September, the rain falls for 6.1 days and regularly aggregates up to 0.55" (14mm) of precipitation.

What is the average length of the day in September in Cathedral City?

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

When are sunrise and sunset in September in Cathedral City?

On the first day of September, sunrise is at 6:20 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:31 pm PDT.

How many hours of sunshine does Cathedral City have in September?

The average sunshine duration in September in Cathedral City, California, is 10.5h.

What is the UV index reading in September in Cathedral City?

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from 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
Cathedral City, CA

Average temperature in September - Cathedral City, CA
  • Average high temperature in September: 86.9°F

The warmest months (with the highest average high temperature) are July and August (93.7°F).
The month with the lowest average high temperature is December (58.1°F).

  • Average low temperature in September: 67.6°F

The month with the highest average low temperature is August (72.9°F).
The coldest month (with the lowest average low temperature) is December (42.8°F).

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Average pressure in September
Cathedral City, CA

Average pressure in September - Cathedral City, 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 (29.81"Hg).

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Average wind speed in September
Cathedral City, CA

Average wind speed in September - Cathedral City, CA
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is May (8.8mph).
The calmest month (with the lowest average wind speed) is January (5.8mph).

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Average humidity in September
Cathedral City, CA

Average humidity in September - Cathedral City, 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
Cathedral City, CA

Average rainfall in September - Cathedral City, CA
  • Average rainfall in September: 0.55"

The wettest month (with the highest rainfall) is July (1.14").
The driest months (with the least rainfall) are May and June (0.12").

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Average rainfall days in September
Cathedral City, CA

Average rainfall days in September - Cathedral City, CA
  • Average rainfall days in September: 6.1 days

The month with the highest number of rainy days is July (8.3 days).
The month with the least rainy days is June (1.5 days).

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Average daylight in September /
Average sunshine in September
Cathedral City, CA

Average daylight in September / Average sunshine in September - Cathedral City, 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
Cathedral City, CA

Average sunshine days in September - Cathedral City, CA
  • Average sunshine days in September: 22.5 days

The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is July (19.1 days).

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Average UV index in September
Cathedral City, CA

Average UV index in September - Cathedral City, 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
Cathedral City, CA

Average cloud cover in September - Cathedral City, 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
Cathedral City, CA

Average visibility in September - Cathedral City, 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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Cathedral City, California, USA

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