May weather forecast
Port Antonio, Jamaica

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Weather in May

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.

Frequently asked questions

How hot is May in Port Antonio?

In Port Antonio, in May, the average high-temperature is 30°C (86°F), and the average low-temperature is 21°C (69.8°F).

How many days does it rain in May in Port Antonio?

In Port Antonio, in May, during 12 rainfall days, 276mm (10.87") of precipitation is typically accumulated.

What is the sea water temperature in May in Port Antonio?

In Port Antonio, the average seawater temperature in May is 28.2°C (82.8°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in May in Port Antonio?

In May, the average day length in Port Antonio, Jamaica, is 12h and 59min.

When are sunrise and sunset in May in Port Antonio?

In May, on the first day of the month, sunrise is at 05:38 and sunset at 18:27. On the last day of the month, sunrise is at 05:29 and sunset at 18:38 EST.

How many hours of sunshine does Port Antonio have in May?

The average sunshine duration in May in Port Antonio is 7h.

What is the month with the highest UV index in Port Antonio?

March through September, with an average maximum UV index of 12, are months with the highest UV index in Port Antonio, Jamaica.

What is the UV index intensity in May in Port Antonio?

The average daily maximum UV index in May in Port Antonio, Jamaica, is 12. A UV Index value of 11, and more, symbolizes an ultimate hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in May
Port Antonio, Jamaica

Average temperature in May - Port Antonio, Jamaica
  • Average high temperature in May: 30°C

The warmest months (with the highest average high temperature) are July and August (31°C).
The months with the lowest average high temperature are January, February, March, November and December (29°C).

  • Average low temperature in May: 21°C

The months with the highest average low temperature are June, July, August and September (22°C).
The coldest month (with the lowest average low temperature) is January (18°C).

Average rainfall in May
Port Antonio, Jamaica

Average rainfall in May - Port Antonio, Jamaica
  • Average rainfall in May: 276mm

The wettest month (with the highest rainfall) is November (352mm).
The driest month (with the least rainfall) is March (75mm).

Average rainfall days in May
Port Antonio, Jamaica

Average rainfall days in May - Port Antonio, Jamaica
  • Average rainfall days in May: 12 days

The month with the highest number of rainy days is October (16 days).
The months with the least rainy days are February and March (6 days).

Average sea temperature in May
Port Antonio, Jamaica

Average sea temperature in May - Port Antonio, Jamaica
  • Average sea temperature in May: 28.2°C

The best month for swimming (with the highest average sea temperature) is September (29.8°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).

Average daylight in May /
Average sunshine in May
Port Antonio, Jamaica

Average daylight in May / Average sunshine in May - Port Antonio, Jamaica
  • Average daylight in May: 13h and 0min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).

  • Average sunshine in May: 7h

The months with the most sunshine are March, April and July (Average sunshine: 8h).
The months with the least sunshine are September, October and November (Average sunshine: 6h).

Average UV index in May
Port Antonio, Jamaica

Average UV index in May - Port Antonio, Jamaica
  • Average UV index in May: 12

The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The months with the lowest UV index are January and December (UV index 8).

Port Antonio, Jamaica

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