May weather forecast
Port Antonio, Jamaica

May ushers in the wet season in Port Antonio with the annual highest rainfall of 276mm (10.87") spread over an increased number of rainy days. Despite the weather challenges, daylight and sunshine durations remain favorable for outdoor activities. The rise in temperatures keeps most of the nights comfortably warm. It serves well to remember that the UV index is still at its highest point this month.

Temperature

As Port Antonio, Jamaica, ushers in May, the high temperature records at a still hot 30°C (86°F), matching the readings of the prior month. During May nights, Port Antonio witnesses a consistent average temperature of 21°C (69.8°F).

Rainfall

In Port Antonio, in May, it is raining for 12 days, with typically 276mm (10.87") of accumulated precipitation. Throughout the year, in Port Antonio, Jamaica, there are 125 rainfall days, and 2639mm (103.9") of precipitation is accumulated.

Sea temperature

In May, the average sea temperature is 28.2°C (82.8°F).
Note: Engaging in water activities, such as swimming or diving, in temperatures from 25°C (77°F) to 29°C (84.2°F) is very pleasurable for extended periods, without any discomfort.

Daylight

In May, the average length of the day in Port Antonio is 12h and 59min.
On the first day of the month, sunrise is at 05:38 and sunset at 18:27. On the last day of May, in Port Antonio, sunrise is at 05:29 and sunset at 18:38 EST.

Sunshine

The average sunshine in May is 7h.

UV index

The months with the highest UV index in Port Antonio are March through September, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an extreme threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 12 in May converts into the following recommendations:
Employ every precaution of importance, unprotected skin and eyes could burn within moments. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. A sunscreen boasting a minimum SPF of 30 should be generously applied and reapplied even on cloudy days, post swim or outdoor exercise. Warning! The Sun's UV rays intensify with reflections from sand and water.