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
As September takes hold, the average high-temperature is a still tropical 86.9°F (30.5°C), nearly mirroring that of the previous month. September brings with it a nighttime average temperature of 75.7°F (24.3°C).Heat index
Throughout September, the heat index is estimated at a fiery hot 100.4°F (38°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In September, the average relative humidity is 76%.Rainfall
In September, the rain falls for 20.5 days. Throughout September, 2.13" (54mm) of precipitation is accumulated. In Fivay Junction, during the entire year, the rain falls for 155.2 days and collects up to 17.28" (439mm) of precipitation.Daylight
The average length of the day in September is 12h and 19min.On the first day of September, sunrise is at 7:08 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.
Sunshine
In Fivay Junction, Florida, the average sunshine in September is 9.1h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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?
What is the average length of the day in September?
When are sunrise and sunset in September in Fivay Junction?
How many hours of sunshine does Fivay Junction have in September?
What are the months with the highest UV index?
How high is the UV index in September in Fivay Junction?
Average temperature in September
Fivay Junction, FL
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is August (88.9°F).
The month with the lowest average high temperature is January (66.4°F).
- Average low temperature in September: 75.7°F
The month with the highest average low temperature is August (78.1°F).
The coldest month (with the lowest average low temperature) is January (52.3°F).
Average pressure in September
Fivay Junction, FL
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in September
Fivay Junction, FL
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in September
Fivay Junction, FL
- Average humidity in September: 76%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January, March and May (73%).
Average rainfall in September
Fivay Junction, FL
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Fivay Junction, FL
- Average rainfall days in September: 20.5 days
The months with the highest number of rainy days are July and August (23.6 days).
The month with the least rainy days is January (6.4 days).
Average daylight in September /
Average sunshine in September
Fivay Junction, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in September
Fivay Junction, FL
- Average sunshine days in September: 6.5 days
The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is August (3.4 days).
Average UV index in September
Fivay Junction, FL
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in September
Fivay Junction, FL
- Average cloud cover in September: 28
The months with the most cloud cover are January, February and December (Cloud cover 31).
The month with the least cloud cover is May (Cloud cover 22).
Average visibility in September
Fivay Junction, FL
- 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).
Fivay Junction, Florida, USA
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