April weather forecast
Punta Santiago, PR

April in Punta Santiago witnesses a trend of rising sea temperatures signifying warmer days ahead and an increment in overall rainfall amount. More atmospheric moisture combined with longer days results in increased cloud cover. Changes are indicative of a transitional period into a warmer phase. Changes in the sea temperature are accompanied by similar adjustments in the overall atmospheric pressure at 29.98" (761mm). Amidst these changes, the lowest temperature marginally increases to 74.8°F (23.8°C) even with a slightly higher amount of rainfall, from 2.24" (57mm), occurring over approximately 20 days.

Temperature

Punta Santiago observes a minor difference in average high-temperatures between March's 79.7°F (26.5°C) and April's 81°F (27.2°C). Recording a slight decline in temperature during the nights, Punta Santiago's April temperatures average at a still warm 74.8°F (23.8°C).

Heat index

In April, the heat index is estimated at a tropical 86°F (30°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.

Humidity

In April, the average relative humidity is 78%.

Rainfall

In Punta Santiago, in April, it is raining for 20 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, there are 268.8 rainfall days, and 38.58" (980mm) of precipitation is accumulated.

Ocean temperature

In Punta Santiago, the average seawater temperature in April is 80.4°F (26.9°C).
Note: In water temperatures ranging between 77°F (25°C) and 84.2°F (29°C), activities such as swimming and diving become highly pleasurable for long durations.

Daylight

In April, the average length of the day in Punta Santiago is 12h and 34min.
On the first day of April, sunrise is at 6:16 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 6:44 pm AST.

Sunshine

In April, the average sunshine is 8.9h.

UV index

The months with the highest UV index are April through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In April, the maximum UV index of 7 suggests this advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Caution! The Sun's UV intensity grows with reflections off sand and water.