September weather forecast
Osprey, FL

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Weather in September

September, the first month of the autumn in Osprey, is also a hot month, with an average temperature ranging between max 86.7°F (30.4°C) and min 77.5°F (25.3°C).

Temperature

The transition from August to September sees average high-temperatures adjusting to a still tropical 86.7°F (30.4°C), from a not significantly different 88.3°F (31.3°C). An average nighttime temperature of 77.5°F (25.3°C) is witnessed in Osprey, Florida throughout September.

Heat index

The heat index value during September is appraised at a torrid 98.6°F (37°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to 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.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In September, the average relative humidity in Osprey is 75%.

Rainfall

In Osprey, in September, during 21.5 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. In Osprey, during the entire year, the rain falls for 156.3 days and collects up to 18.82" (478mm) of precipitation.

Ocean temperature

In September, the average ocean temperature in Osprey is 84.7°F (29.3°C).
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of September in Osprey, Florida, sunrise is at 7:09 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

Sunshine

The average sunshine in September is 9.1h.

UV index

The months with the highest UV index in Osprey are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 7 in September translates into this advice:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be wary! Reflections from sand and water make UV radiation more intense.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Osprey in September?

The average high-temperature and low-temperature in Osprey during September are 86.7°F (30.4°C) and 77.5°F (25.3°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 98.6°F (37°C).

What is the average humidity in September in Osprey?

The average relative humidity in September is 75%.

How much does it rain in Osprey in September?

In Osprey, in September, during 21.5 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

What is the water temperature in September in Osprey?

In Osprey, the average seawater temperature in September is 84.7°F (29.3°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in September in Osprey?

The average day length in September in Osprey is 12h and 19min.

What time are sunrise and sunset in September in Osprey?

On the first day of September in Osprey, sunrise is at 7:09 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

How many hours of sunshine does Osprey have in September?

In September, the average sunshine duration in Osprey, Florida, is 9.1h.

When is the highest UV index in Osprey?

The months with the highest UV index in Osprey are May through September, with an average maximum UV index of 7.

What is the UV index intensity in September in Osprey?

The average daily maximum UV index in September in Osprey, Florida, is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.

Average temperature in September
Osprey, FL

Average temperature in September - Osprey, FL
  • Average high temperature in September: 86.7°F

The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is January (68.2°F).

  • Average low temperature in September: 77.5°F

The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (56.8°F).

Average pressure in September
Osprey, FL

Average pressure in September - Osprey, FL
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

Average wind speed in September
Osprey, FL

Average wind speed in September - Osprey, FL
  • Average wind speed in September: 7.6mph

The windiest months (with the highest average wind speed) are January and November (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

Average humidity in September
Osprey, FL

Average humidity in September - Osprey, FL
  • Average humidity in September: 75%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are March, May and October (73%).

Average rainfall in September
Osprey, FL

Average rainfall in September - Osprey, FL
  • Average rainfall in September: 2.36"

The wettest month (with the highest rainfall) is August (4.09").
The driest months (with the least rainfall) are February and March (0.47").

Average rainfall days in September
Osprey, FL

Average rainfall days in September - Osprey, FL
  • Average rainfall days in September: 21.5 days

The month with the highest number of rainy days is August (23.6 days).
The month with the least rainy days is February (6.3 days).

Average sea temperature in September
Osprey, FL

Average sea temperature in September - Osprey, FL
  • Average sea temperature in September: 84.7°F

The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64.9°F).

Average daylight in September /
Average sunshine in September
Osprey, FL

Average daylight in September / Average sunshine in September - Osprey, 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 1min

The month with the most sunshine is May (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in September
Osprey, FL

Average sunshine days in September - Osprey, FL
  • Average sunshine days in September: 5 days

The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is August (4.4 days).

Average UV index in September
Osprey, FL

Average UV index in September - Osprey, 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
Osprey, FL

Average cloud cover in September - Osprey, FL
  • Average cloud cover in September: 28

The months with the most cloud cover are January and December (Cloud cover 29).
The month with the least cloud cover is May (Cloud cover 22).

Average visibility in September
Osprey, FL

Average visibility in September - Osprey, 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).

Osprey, Florida, USA

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