September weather forecast
Holden Heights, FL

September, the first month of the autumn in Holden Heights, is still a hot month, with an average temperature fluctuating between 74.5°F (23.6°C) and 88.5°F (31.4°C).

Temperature

Holden Heights measures an average high-temperature of a still hot 88.5°F (31.4°C) in September, nearly consistent with the preceding month. An average low-temperature of 74.5°F (23.6°C) is expected during September.

Heat index

The heat index value during September is estimated at a blisteringly hot 105.8°F (41°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. 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 are extremely significant for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The most humid month in Holden Heights is September, with an average relative humidity of 77%.

Rainfall

In Holden Heights, in September, during 15.4 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Holden Heights, Florida, during the entire year, the rain falls for 126.6 days and collects up to 9.06" (230mm) 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 7:04 am and sunset at 7:46 pm. On the last day of September, in Holden Heights, sunrise is at 7:18 am and sunset at 7:12 pm EDT.

Sunshine

In September, the average sunshine in Holden Heights is 8.5h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Holden Heights. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 7 in September translates into this advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.