September weather forecast
Phifer, FL

The first month of the autumn, September, is still a hot month in Phifer, Florida, with an average temperature varying between 88°F (31.1°C) and 72.3°F (22.4°C).

Temperature

Phifer's average high-temperature in September is a still tropical 88°F (31.1°C), indicating a subtle variation from August. Phifer observes an average nighttime temperature of 72.3°F (22.4°C) during September.

Heat index

The average heat index in September is calculated to be an extremely hot 105.8°F (41°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Know that the heat index computations account for shaded terrains and slight winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

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

Rainfall

In Phifer, in September, it is raining for 19.7 days, with typically 2.52" (64mm) of accumulated precipitation. Throughout the year, there are 181.1 rainfall days, and 29.09" (739mm) of precipitation is accumulated.

Daylight

In September, the average length of the day in Phifer is 12h and 20min.
On the first day of the month, sunrise is at 7:06 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:15 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September in Phifer, Florida, is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during September leads to these instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.