September weather forecastHarbor Beach, FL

Weather in September

The first month of the autumn, September, is also a moderately hot month in Harbor Beach, Florida, with an average temperature varying between 85.8°F (29.9°C) and 80.8°F (27.1°C).

Temperature

Transitioning into September, Harbor Beach experiences an average high-temperature of a moderately hot 85.8°F (29.9°C), marking a minor shift from the preceding month. A minimal decline in temperature from daytime highs is anticipated throughout the September nights, averaging a still warm 80.8°F (27.1°C).

Heat index

In September, the heat index is appraised at a fiery hot 96.8°F (36°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In Harbor Beach, the average relative humidity in September is 73%.

Rainfall

In September, in Harbor Beach, the rain falls for 23.6 days. Throughout September, 1.73" (44mm) of precipitation is accumulated. In Harbor Beach, during the entire year, the rain falls for 179 days and collects up to 15.55" (395mm) of precipitation.

Daylight

The average length of the day in September in Harbor Beach is 12h and 18min.
On the first day of the month, sunrise is at 7:00 am and sunset at 7:39 pm. On the last day of September, in Harbor Beach, sunrise is at 7:12 am and sunset at 7:07 pm EDT.

Sunshine

In Harbor Beach, the average sunshine in September is 9h.

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 hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 7 in September translates into these instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.