September weather forecast
Lake Sarasota, FL

The first month of the autumn, September, is still a tropical month in Lake Sarasota, Florida, with temperature in the range of an average high of 86.7°F (30.4°C) and an average low of 77.5°F (25.3°C).

Temperature

The arrival of September brings an average high-temperature of a still tropical 86.7°F (30.4°C), nearly identical to August's 88.3°F (31.3°C). Lake Sarasota usually reports an average low-temperature of 77.5°F (25.3°C) during the month of September.

Heat index

The heat index for September is computed to be a torrid 98.6°F (37°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In September, the average relative humidity is 75%.

Rainfall

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

Daylight

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

Sunshine

In September, the average sunshine in Lake Sarasota, Florida, is 9.1h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Take precautions against overexposure. Protection against sun damage is needed. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.