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 arrival of September denotes a barely perceptible change in the average high-temperatures to a still warm 81.9°F (27.7°C) from August's 82.9°F (28.3°C). Throughout September, South Gate records an average temperature of 64.6°F (18.1°C) at night.Heat index
For September, the heat index is appraised at 84.2°F (29°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Take note of the fact that heat index values are based on shaded circumstances with light airflows. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
In September, the average relative humidity in South Gate, California, is 58%.Rainfall
June, August and September are months without rainfall.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:18 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:37 pm PDT.
Sunshine
The average sunshine in September is 10.6h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 6 in September translates into this advice:
Deter overexposure. Protecting against the sun's effects is essential. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for South Gate in September?
What is the average humidity in September?
What is the driest month?
Does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September in South Gate?
What are the months with the highest UV index?
What is the UV index reading in September in South Gate?
Average temperature in September
South Gate, CA
- Average high temperature in September: 81.9°F
The warmest month (with the highest average high temperature) is August (82.9°F).
The month with the lowest average high temperature is December (64.4°F).
- Average low temperature in September: 64.6°F
The month with the highest average low temperature is August (65.3°F).
The coldest month (with the lowest average low temperature) is February (50.5°F).
Average pressure in September
South Gate, CA
- Average pressure in September: 29.89"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.89"Hg).
Average wind speed in September
South Gate, CA
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is October (4.7mph).
Average humidity in September
South Gate, CA
- Average humidity in September: 58%
The month with the highest relative humidity is June (67%).
The month with the lowest relative humidity is November (51%).
Average rainfall in September
South Gate, CA
- Average rainfall in September: 0"
The wettest months (with the highest rainfall) are February and December (0.39").
The driest months (with the least rainfall) are June, August and September (0").
Average rainfall days in September
South Gate, CA
- Average rainfall days in September: 1 days
The month with the highest number of rainy days is March (4.5 days).
The month with the least rainy days is June (0.5 days).
Average daylight in September /
Average sunshine in September
South Gate, 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 4min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
South Gate, CA
- Average sunshine days in September: 27.9 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is February (24.1 days).
Average UV index in September
South Gate, 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
South Gate, CA
- Average cloud cover in September: 9
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 6).
Average visibility in September
South Gate, 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).
South Gate, California, USA
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