March weather forecast
Port Royal, Jamaica

As Port Royal transitions into March, there is a slight increase in temperature as well as in the duration of daily sunshine, indicating the approaching summer season. March welcomes an uptick in rainfall, marking one of the highest spikes for the year at 59mm (2.32"). The sea temperature follows suit, creeping up marginally from the previous months. Despite the minor changes, the weather remains enjoyable with a good balance between sunshine, rain, and humidity. Wind speeds tend to drop a bit, but overall the weather patterns remain steady.

Temperature

Port Royal records an average high-temperature of a still moderately hot 27.7°C (81.9°F) in March, closely mirroring the climate of the previous month. Port Royal cools down to an average low-temperature of 21.7°C (71.1°F) throughout the month of March.

Heat index

The heat index for March is appraised at a tropical 31°C (87.8°F). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.

Humidity

March is the least humid month, with an average relative humidity of 78%.

Rainfall

In March, the rain falls for 25.4 days. Throughout March, 59mm (2.32") of precipitation is accumulated. Throughout the year, in Port Royal, there are 310.9 rainfall days, and 1286mm (50.63") of precipitation is accumulated.

Sea temperature

In March, the average sea temperature is 27.3°C (81.1°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and similar water activities, ensuring pleasure and comfort for extended periods without feeling uneasy.

Daylight

In March, the average length of the day is 12h and 3min.
On the first day of the month, sunrise is at 06:25 and sunset at 18:13. On the last day of March, sunrise is at 06:01 and sunset at 18:20 EST.

Sunshine

In March, the average sunshine is 8.6h.

UV index

The months with the lowest UV index in Port Royal are January through May, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: An average maximum UV index of 6 in March leads to these recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.