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 snowfall in September
- Average snowfall 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 onset of September marks an average high-temperature of a moderately hot 84.6°F (29.2°C), hardly differing from August's 89.2°F (31.8°C). Chulavista's average low-temperature during September nights is observed to be a refreshing 64°F (17.8°C).Heat index
For most parts of September, the heat index is computed to be a hot 93.2°F (34°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Heat index evaluations are typically in the context of light winds and shaded environments. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
In September, the average relative humidity is 74%.Rainfall
In Chulavista, in September, it is raining for 14.5 days, with typically 2.64" (67mm) of accumulated precipitation. Throughout the year, there are 184.1 rainfall days, and 41.97" (1066mm) of precipitation is accumulated.Snowfall
In Chulavista, snow does not fall in March through November.Daylight
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 7:10 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:30 pm CDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, the UV index of 5 transforms into the following advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Chulavista have in September?
How high is the UV index in September?
Average temperature in September
Chulavista, AL
- Average high temperature in September: 84.6°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (50.9°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).
Average pressure in September
Chulavista, AL
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Chulavista, AL
- Average wind speed in September: 4.6mph
The windiest months (with the highest average wind speed) are January and February (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in September
Chulavista, AL
- Average humidity in September: 74%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Chulavista, AL
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is October (2.32").
Average rainfall days in September
Chulavista, AL
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is July (22.4 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in September
Chulavista, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.91").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Chulavista, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Chulavista, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Chulavista, AL
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (6.2 days).
Average UV index in September
Chulavista, AL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Chulavista, AL
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in September
Chulavista, AL
- 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).
Chulavista, Alabama, USA
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