March weather forecast
Juana Díaz, PR

March marks the transition from winter to spring in Puerto Rico, USA. With unexpected rainfall climbing to 1.54 in on average, the weather remains generally temperate, ensuring lush, green surroundings. The coastline also comes alive with beachgoers as the seas slowly warm up. The lengthening daylight hours are perfect for experiencing the natural splendor of the island nation. The transition into April brings a greater increase in rainfall paired with slightly higher temperatures.

Temperature

With the onset of March, the average high-temperature registers at a still warm 82°F (27.8°C), subtly different from February's 81.5°F (27.5°C). Juana Díaz usually reports an average low-temperature of 70.9°F (21.6°C) during the month of March.

Heat index

The heat index in March is computed to be a hot 87.8°F (31°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.

Humidity

The least humid month is March, with an average relative humidity of 76%.

Rainfall

In Juana Díaz, during March, the rain falls for 18.8 days and regularly aggregates up to 1.54" (39mm) of precipitation. In Juana Díaz, during the entire year, the rain falls for 249.1 days and collects up to 28.82" (732mm) of precipitation.

Ocean temperature

February and March, with an average ocean temperature of 79.3°F (26.3°C), are months with the coldest seawater.
Note: Temperatures between 77°F (25°C) and 84.2°F (29°C) in water are ideal for swimming, diving, and other activities, providing enjoyment and comfort for extended durations.

Daylight

In Juana Díaz, the average length of the day in March is 12h and 3min.
On the first day of March in Juana Díaz, sunrise is at 6:44 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 6:39 pm AST.

Sunshine

In Juana Díaz, Puerto Rico, the average sunshine in March is 8.7h.

UV index

The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In March, the maximum UV index of 6 translates into these guidelines:
Deflect overexposure. Sun protection is a necessity. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Alert! UV radiation becomes sharper due to reflections from sand and water.