September weather forecast
South Venice, FL

The first month of the autumn, September, is also a hot month in South Venice, Florida, with temperature in the range of an average high of 86.7°F (30.4°C) and an average low of 77.9°F (25.5°C).

Temperature

South Venice measures an average high-temperature of a still tropical 86.7°F (30.4°C) in September, nearly consistent with the preceding month. South Venice welcomes an average low temperature of 77.9°F (25.5°C) in September, a gentle shift from the day's high.

Heat index

During September, the heat index is appraised at a sweltering 100.4°F (38°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

In South Venice, the average relative humidity in September is 76%.

Rainfall

In September, in South Venice, the rain falls for 19.2 days. Throughout September, 1.85" (47mm) of precipitation is accumulated. Throughout the year, there are 150.8 rainfall days, and 17.13" (435mm) of precipitation is accumulated.

Ocean temperature

In September, the average ocean temperature is 84.7°F (29.3°C).
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) provides warmth and pleasure, making water activities enjoyable for lengthened periods without feeling uncomfortable.

Daylight

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

Sunshine

In September, the average sunshine is 9.1h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the UV index of 7 transforms into the following advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.