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
The shift from August to September includes a small decrease in the average high-temperature, from 94.6°F (34.8°C) to a still hot 88.7°F (31.5°C). September nights experience a consistent temperature drop to a pleasant 72°F (22.2°C).Humidity
In September, the average relative humidity is 33%.Rainfall
In September, the rain falls for 5 days. Throughout September, 0.31" (8mm) of precipitation is accumulated. Throughout the year, there are 46.2 rainfall days, and 4.09" (104mm) of precipitation is accumulated.Daylight
In Sandy Korner, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:19 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:29 pm PDT.
Sunshine
The average sunshine in September is 10.4h.UV index
In Sandy Korner, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 7 in September translates into this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Sandy Korner have in September?
When are sunrise and sunset in September in Sandy Korner?
How many hours of sunshine does Sandy Korner have in September?
What is the UV index reading in September?
Average temperature in September
Sandy Korner, CA
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is July (95.4°F).
The month with the lowest average high temperature is December (60.6°F).
- Average low temperature in September: 72°F
The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is December (46.8°F).
Average pressure in September
Sandy Korner, CA
- Average pressure in September: 29.83"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in September
Sandy Korner, CA
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is May (8.2mph).
The calmest month (with the lowest average wind speed) is January (5.5mph).
Average humidity in September
Sandy Korner, CA
- Average humidity in September: 33%
The month with the highest relative humidity is December (46%).
The month with the lowest relative humidity is June (29%).
Average rainfall in September
Sandy Korner, CA
- Average rainfall in September: 0.31"
The wettest month (with the highest rainfall) is July (0.79").
The driest months (with the least rainfall) are May and June (0.12").
Average rainfall days in September
Sandy Korner, CA
- Average rainfall days in September: 5 days
The month with the highest number of rainy days is July (6.9 days).
The month with the least rainy days is June (1.5 days).
Average daylight in September /
Average sunshine in September
Sandy Korner, 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: 10h and 0min).
- Average sunshine in September: 10h and 2min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).
Average sunshine days in September
Sandy Korner, CA
- Average sunshine days in September: 23.1 days
The month with the most sunshine days is October (27.4 days).
The month with the least sunshine days is July (19.4 days).
Average UV index in September
Sandy Korner, CA
- Average UV index in September: 7
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Sandy Korner, CA
- Average cloud cover in September: 6
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 4).
Average visibility in September
Sandy Korner, 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).
Sandy Korner, California, USA
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