September weather forecast
Jayuya, PR

Shifting into autumnal gear, September poses a slightly cooler yet still quite balmy transition phase in Jayuya's seasonal cycle. During this month, the town experiences the highest rainfall of the year, dousing the land with around 4.45in of precipitation. The temperatures take a subtle dip, with the daily high averaging at around 85.8°F (29.9°C). Regardless of the increase in rainfall, the sun loyally dispenses an average of 9.2 hours of sunshine within the 12.2 daylight hours. The steadily blowing winds, averaging at approximately 6mph (9.7km/h), drive away the heat, leaving a more agreeable atmosphere in their wake.

Temperature

In September, the average high-temperature registers at a warm 85.8°F (29.9°C), nearly identical to August's 86.5°F (30.3°C). In the month of September, an average of 75.7°F (24.3°C) marks the low-temperature.

Heat index

For September, the heat index is calculated to be a fiery hot 98.6°F (37°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in September is 80%.

Rainfall

The month with the most rainfall is September, when the rain falls for 22.7 days and typically aggregates up to 4.45" (113mm) of precipitation.

Daylight

In September, the average length of the day is 12h and 14min.
On the first day of September, sunrise is at 6:12 am and sunset at 6:40 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 6:15 pm AST.

Sunshine

In September, the average sunshine is 9.2h.

UV index

May through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 7 in September transforms into this advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.