Port Antonio
Jamaica
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Port Antonio, Jamaica

January, like December, in Port Antonio, Jamaica, is another warm winter month, with average temperature fluctuating between 18°C (64.4°F) and 29°C (84.2°F). January through March, November and December, with an average high-temperature of 29°C (84.2°F), are the coldest months. In January, in Port Antonio, the rain falls for 7 days. Weather in January »
February, the last month of the winter, in Port Antonio, is another warm month, with temperature in the range of an average high of 29°C (84.2°F) and an average low of 19°C (66.2°F). The coldest months are January through March, November and December, with an average high-temperature of 29°C (84.2°F). Weather in February »

March, the first month of the spring, in Port Antonio, is also a moderately hot month, with average temperature fluctuating between 19°C (66.2°F) and 29°C (84.2°F). The coldest months are January through March, November and December, with an average high-temperature of 29°C (84.2°F). March is the month with the least rainfall. Weather in March »

April in Port Antonio, Jamaica, is a tropical spring month, with average temperature varying between 30°C (86°F) and 20°C (68°F). In Port Antonio, the average high-temperature in April is practically the same as in March - a hot 30°C (86°F). Weather in April »

May, the last month of the spring, in Port Antonio, is also a hot month, with average temperature ranging between min 21°C (69.8°F) and max 30°C (86°F). In May, the average high-temperature remains equal as in April - a still tropical 30°C (86°F). Weather in May »

June, the first month of the summer, in Port Antonio, is still a tropical month, with average temperature varying between 30°C (86°F) and 22°C (71.6°F). In Port Antonio, the average high-temperature remains equal as in May - a still hot 30°C (86°F). Weather in June »

July, like June, is another hot summer month in Port Antonio, Jamaica, with average temperature ranging between max 31°C (87.8°F) and min 22°C (71.6°F). July and August, with an average high-temperature of 31°C (87.8°F), are the warmest months. Weather in July »

The last month of the summer, August, is also a hot month in Port Antonio, Jamaica, with average temperature ranging between min 22°C (71.6°F) and max 31°C (87.8°F). July and August, with an average high-temperature of 31°C (87.8°F), are the warmest months. Weather in August »

The first month of the autumn, September, is still a tropical month in Port Antonio, Jamaica, with temperature in the range of an average low of 22°C (71.6°F) and an average high of 30°C (86°F). In September, the average high-temperature is almost the same as in August - a still hot 30°C (86°F). Weather in September »

October, the same as September, in Port Antonio, Jamaica, is another tropical autumn month, with average temperature ranging between max 30°C (86°F) and min 21°C (69.8°F). In Port Antonio, the average high-temperature in October remains the same as in September - a still hot 30°C (86°F). Weather in October »

November, the last month of the autumn, in Port Antonio, is another warm month, with average temperature ranging between max 29°C (84.2°F) and min 20°C (68°F). January through March, November and December, with an average high-temperature of 29°C (84.2°F), are the coldest months. November is the month with the most rainfall. Weather in November »

December, the first month of the winter, in Port Antonio, is also a moderately hot month, with average temperature varying between 29°C (84.2°F) and 19°C (66.2°F). January through March, November and December, with an average high-temperature of 29°C (84.2°F), are the coldest months. In Port Antonio, Jamaica, in December, it is raining for 8 days, with typically 279mm (11") of accumulated precipitation. Weather in December »

What are the coldest months in Port Antonio?

January through March, November and December, with an average high-temperature of 29°C (84.2°F), are the coldest months.

How much does it rain in Port Antonio?

Throughout the year, in Port Antonio, there are 125 rainfall days, and 2639mm (103.9") of precipitation is accumulated.

When is the lowest UV index in Port Antonio?

Months with the lowest UV index are January and December, with an average maximum UV index of 8.

What month is the sea coldest in Port Antonio?

The month with the coldest seawater is February, with an average sea temperature of 26.8°C (80.2°F).

What is the driest month in Port Antonio?

The month with the least rainfall is March when the rain falls for 6 days and typically collects 75mm (3") of precipitation.

What are the months with the most sunshine in Port Antonio?

March, April and July, with an average of 8h of sunshine, are months with the most sunshine.

When is the highest UV index in Port Antonio?

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

When are the longest days in Port Antonio?

The month with the longest days in Port Antonio is June, with an average of 13.2h of daylight.

What is the warmest month in Port Antonio?

July and August, with an average high-temperature of 31°C (87.8°F), are warmest months in Port Antonio.

What is the month with the warmest sea water in Port Antonio?

September is the month with the warmest seawater, with an average sea temperature of 29.8°C (85.6°F).

What is the month with the least sunshine in Port Antonio?

Months with the least sunshine are September through November, with an average of 6h of sunshine.

What is the rainiest month in Port Antonio?

The month with the most rainfall in Port Antonio is November when the rain falls for 11 days and typically aggregates up to 352mm (13.9") of precipitation.

What is the month with the shortest days in Port Antonio?

December has the shortest days of the year, with an average of 11.1h of daylight.
Average temperature - Port Antonio, Jamaica

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

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 - Port Antonio, Jamaica

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

Average rainfall days - Port Antonio, Jamaica

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

Average sea temperature - Port Antonio, Jamaica

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 / Average sunshine - Port Antonio, Jamaica

The month with the longest days is June (Average daylight: 13.2h).
The month with shortest days is December (Average daylight: 11.1h).

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

Average UV index - Port Antonio, Jamaica

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