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 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's advent presents an average high-temperature of a still hot 86.7°F (30.4°C), indicating a slight variation from the conditions of the previous month. The low-temperature average for Romero during September stands at an agreeable 70.9°F (21.6°C).Heat index
The average heat index in September is estimated at a torrid 102.2°F (39°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.The standards for the heat index are set for locations in shade and under light breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are primarily vital for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
The average relative humidity in September is 79%.Rainfall
In September, in Romero, Louisiana, the rain falls for 13.8 days. Throughout September, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 129.6 rainfall days, and 15.83" (402mm) of precipitation is accumulated.Snowfall
In Romero, snow does not fall in February through December.Daylight
In September, the average length of the day is 12h and 20min.On the first day of September, sunrise is at 6:44 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:53 pm CDT.
Sunshine
In Romero, the average sunshine in September is 10h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 6 in September translates into this advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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 much does it rain in September?
When it does not snow?
How many hours of daylight does Romero have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Romero have in September?
How high is the UV index in September?
Average temperature in September
Romero, LA
- Average high temperature in September: 86.7°F
The warmest month (with the highest average high temperature) is August (90°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 70.9°F
The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (44.6°F).
Average pressure in September
Romero, LA
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Romero, LA
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest months (with the lowest average wind speed) are July, August and September (5.5mph).
Average humidity in September
Romero, LA
- Average humidity in September: 79%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Romero, LA
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is August (2.44").
The driest month (with the least rainfall) is March (0.71").
Average rainfall days in September
Romero, LA
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is August (17.9 days).
The month with the least rainy days is January (7.2 days).
Average snowfall days in September
Romero, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Romero, LA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Romero, LA
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is January (21.5 days).
The month with the least sunshine days is August (10.5 days).
Average UV index in September
Romero, LA
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Romero, LA
- Average cloud cover in September: 29
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 25).
Average visibility in September
Romero, LA
- 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).
Romero, Louisiana, USA
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