May weather forecast
Villalba, PR

As May rolls in, so does the heaviest rainfall of the year in Villalba, soaring high to 2.95" (75mm). This mark of raised humidity coincides with a gradual increase in temperature, creating an authentic tropical climate. With the city's streets bathed frequently by showers, the locales sparkle in their lush green hues. The wind speeds, however, remain unwavered by the weather changes and moderate throughout the month.

Temperature

The advent of May sees the average high-temperature at a still warm 84.4°F (29.1°C), subtly shifted from April's 82.8°F (28.2°C). Villalba records a consistent low-temperature of 74.1°F (23.4°C) during May nights.

Heat index

During May, the heat index is evaluated at a very hot 95°F (35°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in May in Villalba is 79%.

Rainfall

In May, in Villalba, Puerto Rico, the rain falls for 24.6 days. Throughout May, 2.95" (75mm) of precipitation is accumulated. Throughout the year, there are 249.1 rainfall days, and 28.82" (732mm) of precipitation is accumulated.

Daylight

The average length of the day in May in Villalba is 12h and 59min.
On the first day of May, sunrise is at 5:58 am and sunset at 6:47 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 6:58 pm AST.

Sunshine

In Villalba, the average sunshine in May is 10.4h.

UV index

May through October, with an average maximum UV index of 7, are months with the highest UV index in Villalba. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 7 in May translates into these instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.