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
September brings an average high-temperature of a warm 84.7°F (29.3°C), nearly identical to the preceding month. A mean low-temperature of 80.4°F (26.9°C) is a distinguishing feature of September, indicating a slight dip from daytime highs.Heat index
For most parts of September, the heat index is computed to be a hot 93.2°F (34°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.Note that heat index values are valued for light wind and location in the shade. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
In Gramercy Park, the average relative humidity in September is 75%.Rainfall
In Gramercy Park, during September, the rain falls for 25 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, there are 193.9 rainfall days, and 22.56" (573mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 18min.On the first day of the month, sunrise is at 7:00 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:12 am and sunset at 7:07 pm EDT.
Sunshine
The average sunshine in September is 9h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 7 during September translates into the following guidance:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. 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. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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 many days does it rain in September?
How many hours of daylight does Gramercy Park have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the highest UV index?
How high is the UV index in September?
Average temperature in September
Gramercy Park, FL
- Average high temperature in September: 84.7°F
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is January (72°F).
- Average low temperature in September: 80.4°F
The month with the highest average low temperature is August (81.3°F).
The coldest month (with the lowest average low temperature) is January (64.2°F).
Average pressure in September
Gramercy Park, FL
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).
Average wind speed in September
Gramercy Park, FL
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is March (11.8mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Gramercy Park, FL
- Average humidity in September: 75%
The month with the highest relative humidity is June (76%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
Gramercy Park, FL
- Average rainfall in September: 2.87"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in September
Gramercy Park, FL
- Average rainfall days in September: 25 days
The month with the highest number of rainy days is September (25 days).
The month with the least rainy days is February (9.3 days).
Average daylight in September /
Average sunshine in September
Gramercy Park, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 6h and 6min).
Average sunshine days in September
Gramercy Park, FL
- Average sunshine days in September: 3.6 days
The month with the most sunshine days is January (18.2 days).
The month with the least sunshine days is August (3.5 days).
Average UV index in September
Gramercy Park, 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 months with the lowest UV index are January and February (UV index 5).
Average cloud cover in September
Gramercy Park, FL
- Average cloud cover in September: 31
The months with the most cloud cover are January, November and December (Cloud cover 35).
The months with the least cloud cover are May, July and August (Cloud cover 28).
Average visibility in September
Gramercy Park, 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).
Gramercy Park, Florida, USA
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