Monthly weather forecast and climate
Port Antonio, Jamaica

Weather in January

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). The coldest months are January through March, November and December, with an average high-temperature of 29°C (84.2°F). In January, the rain falls for 7 days. Weather in January »

Weather in February

February, the last month of the winter, in Port Antonio, is also a moderately hot month, with average temperature ranging between max 29°C (84.2°F) and min 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). In February, in Port Antonio, the rain falls for 6 days. Weather in February »

Weather in March

March, the first month of the spring, in Port Antonio, is also a moderately hot month, with average temperature ranging between max 29°C (84.2°F) and min 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. Weather in March »

Weather in April

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

Weather in May

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

Weather in June

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

Weather in July

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

Weather in August

August, the last month of the summer, in Port Antonio, is also a hot month, 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. In Port Antonio, Jamaica, it is raining for 13 days, with typically 197mm (7.76") of accumulated precipitation. Weather in August »

Weather in September

September, the first month of the autumn, in Port Antonio, is still a hot month, 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 practically the same as in August - a still tropical 30°C (86°F). Weather in September »

Weather in October

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

Weather in November

November, the last month of the autumn, in Port Antonio, is another warm month, with average temperature fluctuating between 20°C (68°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. Weather in November »

Weather in December

December, the first month of the winter, in Port Antonio, is still a warm month, with temperature in the range of an average low of 19°C (66.2°F) and an average high of 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). Weather in December »
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FAQ

What is the coldest month in Port Antonio?

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

How many days does it rain in Port Antonio?

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

What are the months with the lowest UV index in Port Antonio?

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

When is the sea coldest in Port Antonio?

With an average sea temperature of 26.8°C (80.2°F), February is the month with the coldest seawater in Port Antonio, Jamaica.

What is the driest month in Port Antonio?

March is the month with the least rainfall. Rain falls for 6 days and accumulates 75mm (2.95") of precipitation.

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

Months with the most sunshine in Port Antonio, Jamaica, are March, April and July, with an average of 8h of sunshine.

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.

When are the longest days in Port Antonio?

With an average of 13.2h of daylight, June has the longest days of the year in Port Antonio.

What are the warmest months in Port Antonio?

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

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

The month with the warmest seawater in Port Antonio, Jamaica, is September, 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 wettest month in Port Antonio?

November is the month with the most rainfall in Port Antonio. Rain falls for 11 days and accumulates 352mm (13.86") of precipitation.

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

With an average of 11.1h of daylight, December has the shortest days of the year in Port Antonio.

Average temperature
Port Antonio, Jamaica

Average temperature - Port Antonio, Jamaica

The 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).

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Average rainfall
Port Antonio, Jamaica

Average rainfall - Port Antonio, Jamaica

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

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Average rainfall days
Port Antonio, Jamaica

Average rainfall days - Port Antonio, Jamaica

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

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Average sea temperature
Port Antonio, Jamaica

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).

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Average daylight / Average sunshine
Port Antonio, Jamaica

Average daylight / Average sunshine - Port Antonio, Jamaica

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

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

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Average UV index
Port Antonio, Jamaica

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).

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