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
September signifies a minor drop in average high-temperature, transitioning from a fiery hot 99.9°F (37.7°C) in August to a tropical 93.6°F (34.2°C). Selma experiences a substantial decline from the daytime high temperatures in September, settling on an average low of 62.1°F (16.7°C).Humidity
The average relative humidity in September is 33%.Rainfall
In Selma, in September, during 1.9 rainfall days, 0.2" (5mm) of precipitation is typically accumulated. Throughout the year, there are 60.9 rainfall days, and 12.48" (317mm) of precipitation is accumulated.Daylight
In Selma, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:42 pm PDT.
Sunshine
In Selma, the average sunshine in September is 11.2h.UV index
In Selma, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Selma have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Selma have in September?
How high is the UV index in September?
Average temperature in September
Selma, CA
- Average high temperature in September: 93.6°F
The warmest month (with the highest average high temperature) is July (100.9°F).
The month with the lowest average high temperature is December (56.5°F).
- Average low temperature in September: 62.1°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is December (42.1°F).
Average pressure in September
Selma, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Selma, CA
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest months (with the lowest average wind speed) are January, November and December (4.2mph).
Average humidity in September
Selma, CA
- Average humidity in September: 33%
The month with the highest relative humidity is January (67%).
The month with the lowest relative humidity is July (29%).
Average rainfall in September
Selma, CA
- Average rainfall in September: 0.2"
The wettest month (with the highest rainfall) is March (2.32").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in September
Selma, CA
- Average rainfall days in September: 1.9 days
The month with the highest number of rainy days is March (10.5 days).
The month with the least rainy days is August (0.9 days).
Average daylight in September /
Average sunshine in September
Selma, 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 1min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Selma, CA
- Average sunshine days in September: 27.3 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is March (19.4 days).
Average UV index in September
Selma, CA
- Average UV index in September: 6
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in September
Selma, CA
- Average cloud cover in September: 6
The month with the most cloud cover is March (Cloud cover 29).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in September
Selma, 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).
Selma, California, USA
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