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
Sandy's September average high-temperature settles at a still tropical 88.3°F (31.3°C), showing a near match with the preceding month. Nighttime temperature dips to a mean of 74.3°F (23.5°C) during September.Heat index
September's mean heat index is appraised at a scorching 107.6°F (42°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
The most humid month is September, with an average relative humidity of 80%.Rainfall
In Sandy, during September, the rain falls for 23.5 days and regularly aggregates up to 3.31" (84mm) of precipitation. In Sandy, Florida, during the entire year, the rain falls for 187.3 days and collects up to 28.62" (727mm) of precipitation.Daylight
The average length of the day in September is 12h and 19min.On the first day of the month, sunrise is at 7:07 am and sunset at 7:48 pm. On the last day of September, in Sandy, sunrise is at 7:20 am and sunset at 7:15 pm EDT.
Sunshine
In September, the average sunshine is 8.9h.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 risk from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 7 suggests this advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the most humid month?
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 Sandy?
How long on average sun shines in September?
What are the months with the highest UV index?
What is the UV index reading in September?
Average temperature in September
Sandy, FL
- Average high temperature in September: 88.3°F
The warmest months (with the highest average high temperature) are July and August (90.1°F).
The month with the lowest average high temperature is January (70.5°F).
- Average low temperature in September: 74.3°F
The month with the highest average low temperature is August (76.5°F).
The coldest month (with the lowest average low temperature) is January (52.9°F).
Average pressure in September
Sandy, FL
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in September
Sandy, FL
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Sandy, FL
- Average humidity in September: 80%
The month with the highest relative humidity is September (80%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
Sandy, FL
- Average rainfall in September: 3.31"
The wettest month (with the highest rainfall) is August (5.08").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days in September
Sandy, FL
- Average rainfall days in September: 23.5 days
The months with the highest number of rainy days are July and August (25.7 days).
The month with the least rainy days is January (8.6 days).
Average daylight in September /
Average sunshine in September
Sandy, 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: 8h and 5min
The months with the most sunshine are May and July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Sandy, FL
- Average sunshine days in September: 4.7 days
The month with the most sunshine days is January (20.7 days).
The months with the least sunshine days are July and August (3.6 days).
Average UV index in September
Sandy, 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, November and December (UV index 5).
Average cloud cover in September
Sandy, FL
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 33).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in September
Sandy, 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).
Sandy, Florida, USA
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