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
Weather in September
Temperature
With the start of September, Chualar measures an average high-temperature of a moderately hot 83.3°F (28.5°C), not significantly differing from August's 86.2°F (30.1°C). With a significant temperature contrast, nighttime temperatures hover around an average low of 53.4°F (11.9°C) in September.Heat index
September's heat index is evaluated at a tropical 86°F (30°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
In September, the average relative humidity is 56%.Rainfall
In Chualar, California, in September, it is raining for 1.4 days, with typically 0.08" (2mm) of accumulated precipitation. In Chualar, during the entire year, the rain falls for 55.4 days and collects up to 7.4" (188mm) of precipitation.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:37 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:50 pm PDT.
Sunshine
In September, the average sunshine is 11.3h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 suggests this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Chualar have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Chualar, CA
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is August (86.2°F).
The month with the lowest average high temperature is December (57.6°F).
- Average low temperature in September: 53.4°F
The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is February (39.9°F).
Average pressure in September
Chualar, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in September
Chualar, CA
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are May and June (6mph).
The calmest month (with the lowest average wind speed) is October (4.4mph).
Average humidity in September
Chualar, CA
- Average humidity in September: 56%
The month with the highest relative humidity is March (73%).
The month with the lowest relative humidity is July (55%).
Average rainfall in September
Chualar, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is December (1.5").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in September
Chualar, CA
- Average rainfall days in September: 1.4 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is June (0.7 days).
Average daylight in September /
Average sunshine in September
Chualar, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 11h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Chualar, CA
- Average sunshine days in September: 27.7 days
The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is March (19.4 days).
Average UV index in September
Chualar, CA
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Chualar, CA
- Average cloud cover in September: 9
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in September
Chualar, 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).
Chualar, California, USA
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