September weather forecast
San Blas, FL

September, the first month of the autumn in San Blas, is also a moderately hot month, with an average temperature fluctuating between 85.1°F (29.5°C) and 75.4°F (24.1°C).

Temperature

San Blas, Florida, starts September with an average high-temperature of a moderately hot 85.1°F (29.5°C), hinting at a minimal fluctuation from August. San Blas experiences an average nighttime temperature of 75.4°F (24.1°C) in the month of September.

Heat index

September's average heat index is evaluated at a fiery hot 95°F (35°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. 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. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In San Blas, the average relative humidity in September is 74%.

Rainfall

In September, in San Blas, the rain falls for 18 days. Throughout September, 3.15" (80mm) of precipitation is accumulated. In San Blas, during the entire year, the rain falls for 164.8 days and collects up to 36.77" (934mm) of precipitation.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 6:19 am and sunset at 7:04 pm. On the last day of September, in San Blas, sunrise is at 6:35 am and sunset at 6:28 pm CDT.

Sunshine

In San Blas, the average sunshine in September is 9.2h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.