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
As Green Cove Springs transitions into September, the average high-temperature stands at a still hot 88.3°F (31.3°C), offering little variation from the preceding month. An average nighttime temperature of 73.4°F (23°C) is recorded during September.Heat index
September's heat index is evaluated at an extremely hot 104°F (40°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
The average relative humidity in September in Green Cove Springs is 76%.Rainfall
In Green Cove Springs, in September, during 14.4 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, in Green Cove Springs, there are 129.7 rainfall days, and 10.98" (279mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall in Green Cove Springs.Daylight
The average length of the day in September in Green Cove Springs is 12h and 20min.On the first day of the month, sunrise is at 7:04 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:19 am and sunset at 7:13 pm EDT.
Sunshine
In September, the average sunshine 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 risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 6 during September, leads to the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Green Cove Springs during September?
What is the average humidity in September in Green Cove Springs?
How much does it rain in Green Cove Springs in September?
When it does not snow in Green Cove Springs?
How many hours of daylight does Green Cove Springs have in September?
When are sunrise and sunset in September in Green Cove Springs?
How long on average sun shines in September in Green Cove Springs?
What is the UV index reading in September in Green Cove Springs?
Average temperature in September
Green Cove Springs, FL
- Average high temperature in September: 88.3°F
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is January (64.8°F).
- Average low temperature in September: 73.4°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (48.2°F).
Average pressure in September
Green Cove Springs, FL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are August and September (29.98"Hg).
Average wind speed in September
Green Cove Springs, FL
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in September
Green Cove Springs, FL
- Average humidity in September: 76%
The months with the highest relative humidity are August and December (77%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
Green Cove Springs, FL
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Green Cove Springs, FL
- Average rainfall days in September: 14.4 days
The months with the highest number of rainy days are July and August (17.7 days).
The months with the least rainy days are January and November (6.5 days).
Average snowfall days in September
Green Cove Springs, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 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
Green Cove Springs, 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 42min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Green Cove Springs, FL
- Average sunshine days in September: 12.5 days
The months with the most sunshine days are January and December (22.3 days).
The month with the least sunshine days is August (8.9 days).
Average UV index in September
Green Cove Springs, 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 and December (UV index 4).
Average cloud cover in September
Green Cove Springs, FL
- Average cloud cover in September: 34
The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are May and July (Cloud cover 30).
Average visibility in September
Green Cove Springs, 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).
Green Cove Springs, Florida, USA
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