September weather forecast
Islandia, FL

The first month of the autumn, September, is also a hot month in Islandia, Florida, with an average temperature varying between 80.4°F (26.9°C) and 87.3°F (30.7°C).

Temperature

With the transition into September, Islandia notes an average high-temperature of a still hot 87.3°F (30.7°C), closely resembling August. Islandia upholds a consistent average temperature of 80.4°F (26.9°C) throughout the nights of September.

Heat index

Throughout September, the heat index is appraised at a sweltering 98.6°F (37°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In September, the average relative humidity is 72%.

Rainfall

In Islandia, in September, during 26.5 rainfall days, 5.71" (145mm) of precipitation is typically accumulated. In Islandia, during the entire year, the rain falls for 225.9 days and collects up to 40.91" (1039mm) of precipitation.

Daylight

In September, the average length of the day in Islandia is 12h and 17min.
On the first day of the month, sunrise is at 7:01 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:08 pm EDT.

Sunshine

In Islandia, the average sunshine in September is 8.9h.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index in Islandia, Florida. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.