September weather forecast
Eustis, FL

The first month of the autumn, September, is still a hot month in Eustis, Florida, with an average temperature ranging between min 73.2°F (22.9°C) and max 88.5°F (31.4°C).

Temperature

August's transformation into September witnesses an average high-temperature of a still tropical 88.5°F (31.4°C), noting a minor change from the preceding month. In September, in Eustis, the average low-temperature is a pleasant 73.2°F (22.9°C).

Heat index

In September, the average heat index is appraised at an extremely hot 105.8°F (41°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

July through September, with an average relative humidity of 78%, are the most humid months.

Rainfall

In Eustis, in September, during 22.3 rainfall days, 4.02" (102mm) of precipitation is typically accumulated. In Eustis, during the entire year, the rain falls for 193.1 days and collects up to 35.71" (907mm) of precipitation.

Daylight

In Eustis, the average length of the day in September is 12h and 19min.
On the first day of September in Eustis, sunrise is at 7:05 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:13 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

In Eustis, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.