September weather forecast
Santa Fe Beach, FL

The first month of the autumn, September, is still a hot month in Santa Fe Beach, Florida, with an average temperature varying between 88.2°F (31.2°C) and 72.3°F (22.4°C).

Temperature

September registers an average high-temperature of a still tropical 88.2°F (31.2°C), slightly varied from August's 90.9°F (32.7°C). The average temperature in Santa Fe Beach, Florida, during September nights dips to an agreeable 72.3°F (22.4°C).

Heat index

The heat index for September is estimated at an extremely hot 105.8°F (41°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The months with the highest humidity are August and September, with an average relative humidity of 78%.

Rainfall

In Santa Fe Beach, in September, during 21.7 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Santa Fe Beach, during the entire year, the rain falls for 188.6 days and collects up to 33.5" (851mm) of precipitation.

Snowfall

In Santa Fe Beach, snow does not fall in January through November.

Daylight

In Santa Fe Beach, the average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 7:05 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:14 pm EDT.

Sunshine

The average sunshine in September in Santa Fe Beach is 8.5h.

UV index

In Santa Fe Beach, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, a regular UV index of 6 translates into these guidelines:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.