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
September
Weather in September
Temperature
September's average high-temperature is a still warm 77.5°F (25.3°C), maintaining a close comparison with August's 78.3°F (25.7°C). September nights experience a consistent temperature drop to a comfortable 64.2°F (17.9°C).Humidity
The average relative humidity in September is 66%.Rainfall
In Carson, in September, during 3.5 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. Throughout the year, there are 54 rainfall days, and 7.6" (193mm) of precipitation is accumulated.Daylight
In Carson, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:27 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:38 pm PDT.
Sunshine
The average sunshine in September is 10.5h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index in Carson, California. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 6 in September leads to these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. 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. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Carson in September?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Carson have in September?
What is the month with the highest UV index?
What is the UV index reading in September?
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).
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).
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).
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%).
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").
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).
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).
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).
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).
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).
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).