September weather forecast
Indian Harbour Beach, FL

The first month of the autumn, September, is also a moderately hot month in Indian Harbour Beach, Florida, with an average temperature varying between 85.1°F (29.5°C) and 77.5°F (25.3°C).

Temperature

As Indian Harbour Beach transitions from August to September, the average high-temperatures adjust to a moderately hot 85.1°F (29.5°C), nearly the same as the previous 87.3°F (30.7°C). Indian Harbour Beach in September observes a slight diminution in temperature from daily highs, recording a low-temperature average of 77.5°F (25.3°C).

Heat index

Throughout September, the heat index is evaluated at a very hot 96.8°F (36°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
When referencing the heat index, its values are suitable for shady environments and light breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In Indian Harbour Beach, the average relative humidity in September is 78%.

Rainfall

In Indian Harbour Beach, during September, the rain falls for 21.2 days and regularly aggregates up to 2.8" (71mm) of precipitation. In Indian Harbour Beach, during the entire year, the rain falls for 176.1 days and collects up to 22.28" (566mm) of precipitation.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 7:01 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:09 pm EDT.

Sunshine

In Indian Harbour Beach, the average sunshine in September 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 estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.