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
With the transition into September, Louise notes an average high-temperature of a still hot 88°F (31.1°C), closely resembling August. The mean low-temperature during September nights is an agreeable 72.1°F (22.3°C).Heat index
Throughout September, the heat index is calculated to be a scorching 105.8°F (41°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
The months with the highest humidity are August and September, with an average relative humidity of 78%.Rainfall
In September, the rain falls for 16 days. Throughout September, 1.5" (38mm) of precipitation is accumulated. In Louise, Florida, during the entire year, the rain falls for 158.6 days and collects up to 20.79" (528mm) of precipitation.Snowfall
In Louise, snow does not fall in January, March through December.Daylight
In Louise, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:06 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:15 pm EDT.
Sunshine
In Louise, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 6 during September translates into the following guidance:
Ward off overexposure. Defence against solar harm is crucial. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What are the most humid months?
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 is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Louise, FL
- Average high temperature in September: 88°F
The warmest months (with the highest average high temperature) are July and August (90.9°F).
The month with the lowest average high temperature is January (63.9°F).
- Average low temperature in September: 72.1°F
The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (45.7°F).
Average pressure in September
Louise, FL
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in September
Louise, FL
- 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 July (4.5mph).
Average humidity in September
Louise, FL
- Average humidity in September: 78%
The months with the highest relative humidity are August and September (78%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Louise, FL
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is August (3.03").
The driest months (with the least rainfall) are January and November (1.02").
Average rainfall days in September
Louise, FL
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is November (7.5 days).
Average snowfall days in September
Louise, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Louise, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Louise, FL
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is August (7.1 days).
Average UV index in September
Louise, FL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).
Average cloud cover in September
Louise, FL
- Average cloud cover in September: 35
The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is May (Cloud cover 31).
Average visibility in September
Louise, FL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).
Louise, Florida, USA
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