May weather forecast
Toa Alta, PR

May in Toa Alta greets residents with the beginning of the hot season, characterized by a noticeable increase in average temperatures. The surge in humidity levels enhances the tropical feel, making it a perfect time for water-related activities. The wind loses a touch of its chill, maintaining an appropriate balance with the rising mercury. The strengthening sunshine dominates the sky, sparking off extended daylight hours. Uniquely, May experiences the highest rainfall at 3.43" (87mm), providing the necessary relief from the heat.

Temperature

May commences with an average high-temperature of a still warm 82.6°F (28.1°C), showing little deviation from April's 81.1°F (27.3°C). Toa Alta, during May nights, observes a steady temperature, averaging at a still warm 75.7°F (24.3°C).

Heat index

Throughout May, the heat index is appraised at a tropical 89.6°F (32°C). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.

Humidity

The months with the highest humidity are May through July and November, with an average relative humidity of 79%.

Rainfall

In Toa Alta, in May, during 22.7 rainfall days, 3.43" (87mm) of precipitation is typically accumulated. Throughout the year, there are 223.5 rainfall days, and 27.95" (710mm) of precipitation is accumulated.

Daylight

The average length of the day in May is 13h and 0min.
On the first day of May, sunrise is at 5:57 am and sunset at 6:46 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 6:57 pm AST.

Sunshine

The months with the most sunshine are May and June, with an average of 10.8h of sunshine.

UV index

The months with the highest UV index are May through November, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: A daily maximum UV index of 7 in May translates into the following instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.