September weather forecast
Hormigueros, PR

As summer draws to a close, September presents a slight dip in temperatures. With the declining daylight hours, Hormigueros eases out of the summer schedule. A steady decrease in rainfall suggests the onset of the drier months ahead. Nevertheless, the humidity hangs in the air, offering reminders of past summer glory. The highest average barometric pressure at 29.91" (760mm) earmarks September.

Temperature

With the advent of September, Hormigueros's high-temperatures adjust to a still moderately hot 85.6°F (29.8°C), closely aligning with the preceding month. Hormigueros's nights throughout September are marked by an average low temperature of 78.6°F (25.9°C), a minor drop from the day's high.

Heat index

September's average heat index is estimated at a sweltering 96.8°F (36°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. 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 average relative humidity in September in Hormigueros is 77%.

Rainfall

The month with the most rainfall is September, when the rain falls for 21.7 days and typically aggregates up to 3.58" (91mm) of precipitation.

Daylight

In Hormigueros, the average length of the day in September is 12h and 14min.
On the first day of September in Hormigueros, sunrise is at 6:14 am and sunset at 6:42 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 6:17 pm AST.

Sunshine

In September, the average sunshine is 9.3h.

UV index

The months with the highest UV index are March through November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 7 in September transforms into the following instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.