September weather forecast
Manasota Key, FL

September, the first month of the autumn in Manasota Key, is still a tropical month, with temperature in the range of an average low of 77.7°F (25.4°C) and an average high of 86.9°F (30.5°C).

Temperature

A minor adjustment in Manasota Key's average high-temperature is noted with the start of September, touching a still tropical 86.9°F (30.5°C) from August's 88.2°F (31.2°C). Manasota Key experiences an average low-temperature of 77.7°F (25.4°C) in month of September.

Heat index

Throughout September, the heat index is evaluated at a torrid 100.4°F (38°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. 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. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in September in Manasota Key, Florida, is 76%.

Rainfall

In Manasota Key, during September, the rain falls for 21.9 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Manasota Key, during the entire year, the rain falls for 168.6 days and collects up to 20.2" (513mm) of precipitation.

Ocean temperature

In Manasota Key, in September, the average water temperature is 84.9°F (29.4°C).
Note: Water temperatures in the range of 77°F (25°C) to 84.2°F (29°C) are warm and delightful, ensuring comfort during water activities over extended periods.

Daylight

In Manasota Key, Florida, the average length of the day in September is 12h and 18min.
On the first day of September in Manasota Key, sunrise is at 7:09 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:16 pm EDT.

Sunshine

In Manasota Key, the average sunshine in September is 9.2h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Manasota Key. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be wary! Reflections from sand and water make UV radiation more intense.