September weather forecast
Carson, CA

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Weather in September

September, the first month of the autumn in Carson, is also a moderately hot month, with an average temperature varying between 77.5°F and 64.2°F.

Temperature

Carson experiences a transition to a still moderately hot 77.5°F in average high-temperatures with the arrival of September, not greatly differing from August's 78.3°F. Throughout September nights, Carson experiences a consistent temperature average of 64.2°F.

Humidity

In September, the average relative humidity is 66%.

Rainfall

In Carson, in September, during 3.5 rainfall days, 0.24" of precipitation is typically accumulated. In Carson, during the entire year, the rain falls for 54 days and collects up to 7.6" of precipitation.

Daylight

In Carson, California, the average length of the day in September is 12h and 22min.
On the first day of September in Carson, California, sunrise is at 6:26 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:39 pm PDT.

Sunshine

In September, the average sunshine is 10.5h.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 6 suggests this advice:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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FAQ

What is the temperature in September in Carson?

The average high-temperature, in September, in Carson, is 77.5°F, while the average low-temperature is 64.2°F.

What is the average humidity in September in Carson?

In September, the average relative humidity is 66%.

How many days does it rain in September in Carson?

In Carson, California, during September, the rain falls for 3.5 days and regularly aggregates up to 0.24" of precipitation.

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

In September, the average day length in Carson, California, is 12h and 22min.

When are sunrise and sunset in September in Carson?

On the first day of September, sunrise is at 6:26 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:39 pm PDT.

How long on average sun shines in September in Carson?

The average sunshine duration in September in Carson is 10.5h.

When is the highest UV index in Carson?

The months with the highest UV index in Carson are June through September, with an average maximum UV index of 6.

What is the UV index intensity in September in Carson?

The average daily maximum UV index in September in Carson, California, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Carson, CA

Average temperature in September - Carson, CA
  • Average high temperature in September: 77.5°F

The warmest month (with the highest average high temperature) is August (78.3°F).
The month with the lowest average high temperature is December (62.8°F).

  • Average low temperature in September: 64.2°F

The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is February (51.8°F).

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Average pressure in September
Carson, CA

Average pressure in September - Carson, CA
  • Average pressure in September: 29.9"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).

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Average wind speed in September
Carson, CA

Average wind speed in September - Carson, CA
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is September (5.1mph).

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Average humidity in September
Carson, CA

Average humidity in September - Carson, CA
  • Average humidity in September: 66%

The month with the highest relative humidity is June (73%).
The month with the lowest relative humidity is November (57%).

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Average rainfall in September
Carson, CA

Average rainfall in September - Carson, CA
  • Average rainfall in September: 0.24"

The wettest month (with the highest rainfall) is January (1.42").
The driest month (with the least rainfall) is June (0.12").

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Average rainfall days in September
Carson, CA

Average rainfall days in September - Carson, CA
  • Average rainfall days in September: 3.5 days

The month with the highest number of rainy days is March (6.9 days).
The month with the least rainy days is June (2.5 days).

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

Average daylight in September / Average sunshine in September - Carson, 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 months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

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Average sunshine days in September
Carson, CA

Average sunshine days in September - Carson, CA
  • Average sunshine days in September: 21.6 days

The month with the most sunshine days is January (25 days).
The month with the least sunshine days is June (19 days).

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Average UV index in September
Carson, CA

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

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).

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Average cloud cover in September
Carson, CA

Average cloud cover in September - Carson, CA
  • Average cloud cover in September: 11

The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 8).

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Average visibility in September
Carson, CA

Average visibility in September - Carson, 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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Carson, California, USA

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