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
The ushering in of September brings an average high-temperature of a moderately hot 85.5°F (29.7°C), closely mirroring the 87.4°F (30.8°C) of August. September sees a slight dip to an average low temperature of 77.4°F (25.2°C) from the daytime highs.Heat index
The heat index for September is estimated at a very hot 96.8°F (36°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. 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. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
The average relative humidity in September is 78%.Rainfall
In September, the rain falls for 19.6 days. Throughout September, 1.26" (32mm) of precipitation is accumulated. Throughout the year, there are 153.2 rainfall days, and 13.15" (334mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 19min.On the first day of September, sunrise is at 7:00 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:08 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 reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: In September, a regular UV index of 7 translates into these guidelines:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Vero Beach have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Vero Beach have in September?
What are the months with the highest UV index?
What is the UV index intensity in September?
Average temperature in September
Vero Beach, FL
- Average high temperature in September: 85.5°F
The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is January (70.2°F).
- Average low temperature in September: 77.4°F
The month with the highest average low temperature is August (78.6°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).
Average pressure in September
Vero Beach, FL
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in September
Vero Beach, FL
- Average wind speed in September: 7.8mph
The windiest months (with the highest average wind speed) are January and November (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in September
Vero Beach, FL
- Average humidity in September: 78%
The months with the highest relative humidity are June, July and August (79%).
The month with the lowest relative humidity is March (72%).
Average rainfall in September
Vero Beach, FL
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in September
Vero Beach, FL
- Average rainfall days in September: 19.6 days
The month with the highest number of rainy days is August (20.2 days).
The month with the least rainy days is February (7.7 days).
Average daylight in September /
Average sunshine in September
Vero Beach, 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 0min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in September
Vero Beach, FL
- Average sunshine days in September: 6.3 days
The month with the most sunshine days is March (19.5 days).
The month with the least sunshine days is August (5.1 days).
Average UV index in September
Vero Beach, 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, February and December (UV index 5).
Average cloud cover in September
Vero Beach, FL
- Average cloud cover in September: 30
The month with the most cloud cover is November (Cloud cover 36).
The months with the least cloud cover are May and August (Cloud cover 27).
Average visibility in September
Vero Beach, 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).
Vero Beach, Florida, USA
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