September weather forecast and climate
Needles, CA

A beautiful creation featuring stones, neat paths, and a wheeled cart to welcome you to Needles in California
A beautiful creation featuring stones, neat paths, and a wheeled cart to welcome you to Needles in California

Weather in September

The first month of the autumn, September, is still a tropical month in Needles, California, with average temperature ranging between max 94.8°F (34.9°C) and min 77.4°F (25.2°C).

Temperature

In September, the average high-temperature slightly decreases, from a torrid 101.7°F (38.7°C) in August, to a hot 94.8°F (34.9°C). In Needles, California, in September, the average low-temperature is 77.4°F (25.2°C).

Humidity

In Needles, the average relative humidity in September is 24%.

Rainfall

In September, the rain falls for 4.3 days. Throughout September, 0.43" (11mm) of precipitation is accumulated. In Needles, during the entire year, the rain falls for 41.8 days and collects up to 4.21" (107mm) of precipitation.

Daylight

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

Sunshine

The average sunshine is 10.1h.

UV index

In Needles, California, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 7 in September interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Needles?

In Needles, in September, the average high-temperature is 94.8°F (34.9°C), and the average low-temperature is 77.4°F (25.2°C).

What is the average humidity in September in Needles?

In September, the average relative humidity in Needles, California, is 24%.

How many days does it rain in September in Needles?

In Needles, in September, it is raining for 4.3 days, with typically 0.43" (11mm) of accumulated precipitation.

What is the average length of the day in September in Needles?

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

How long on average sun shines in September in Needles?

In Needles, the average sunshine in September is 10.1h.

What is the UV index intensity in September in Needles?

In Needles, California, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to the UV radiation.

Average temperature in September
Needles, CA

Average temperature in September - Needles, CA
  • Average high temperature in September: 94.8°F

The warmest month (with the highest average high temperature) is July (102.6°F).
The month with the lowest average high temperature is December (59°F).

  • Average low temperature in September: 77.4°F

The month with the highest average low temperature is August (83.8°F).
The coldest month (with the lowest average low temperature) is December (45.7°F).

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Average pressure in September
Needles, CA

Average pressure in September - Needles, CA
  • Average pressure in September: 29.82"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.75").

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Average wind speed in September
Needles, CA

Average wind speed in September - Needles, CA
  • Average wind speed in September: 6.8mph

The windiest month (with the highest average wind speed) is April (9mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).

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Average humidity in September
Needles, CA

Average humidity in September - Needles, CA
  • Average humidity in September: 24%

Months with the highest relative humidity are January and December (40%).
The month with the lowest relative humidity is June (14%).

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Average rainfall in September
Needles, CA

Average rainfall in September - Needles, CA
  • Average rainfall in September: 0.43"

The wettest month (with the highest rainfall) is July (0.67").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in September
Needles, CA

Average rainfall days in September - Needles, CA
  • Average rainfall days in September: 4.3 days

The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is June (1.1 days).

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

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

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 10.1h

Months with the most sunshine are June and August (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 7h).

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Average sunshine days in September
Needles, CA

Average sunshine days in September - Needles, CA
  • Average sunshine days in September: 22.8 days

The month with the most sunshine days is November (28.1 days).
The month with the least sunshine days is July (17.9 days).

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Average UV index in September
Needles, CA

Average UV index in September - Needles, CA
  • Average UV index in September: 7

Months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
Needles, CA

Average cloud cover in September - Needles, CA
  • Average cloud cover in September: 7

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
Needles, CA

Average visibility in September - Needles, 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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