Monthly weather forecast and climate
Port Royal, Jamaica

Weather in January

January, like December, in Port Royal, Jamaica, is another warm winter month, with average temperature varying between 27.3°C (81.1°F) and 21.7°C (71.1°F). January and February, with an average high-temperature of 27.3°C (81.1°F), are the coldest months. The average heat index is calculated to a tropical 30.4°C (86.7°F). Weather in January »

Weather in February

The last month of the winter, February, is another warm month in Port Royal, Jamaica, with average temperature fluctuating between 27.3°C (81.1°F) and 21.6°C (70.9°F). January and February, with an average high-temperature of 27.3°C (81.1°F), are the coldest months. In February, the average heat index is estimated at a hot 30.3°C (86.5°F). Weather in February »

Weather in March

The first month of the spring, March, is also a moderately hot month in Port Royal, Jamaica, with average temperature varying between 27.7°C (81.9°F) and 21.7°C (71.1°F). In Port Royal, Jamaica, the average high-temperature is practically the same as in February - a still warm 27.7°C (81.9°F). Weather in March »

Weather in April

April, like March, in Port Royal, Jamaica, is a moderately hot spring month, with average temperature ranging between max 28.7°C (83.7°F) and min 22.6°C (72.7°F). In Port Royal, the average high-temperature in April is almost the same as in March - a still warm 28.7°C (83.7°F). Weather in April »

Weather in May

May, the last month of the spring, in Port Royal, is another warm month, with average temperature ranging between min 23.2°C (73.8°F) and max 28.7°C (83.7°F). In May, the average high-temperature remains equal as in April - a still moderately hot 28.7°C (83.7°F). Weather in May »

Weather in June

The first month of the summer, June, is still a warm month in Port Royal, Jamaica, with temperature in the range of an average high of 29.3°C (84.7°F) and an average low of 24°C (75.2°F). In Port Royal, Jamaica, the average high-temperature in June is almost the same as in May - a still warm 29.3°C (84.7°F). Weather in June »

Weather in July

July in Port Royal, Jamaica, is a hot summer month, with average temperature ranging between min 24.3°C (75.7°F) and max 30°C (86°F). In Port Royal, Jamaica, the average high-temperature in July is almost the same as in June - a tropical 30°C (86°F). Weather in July »

Weather in August

The last month of the summer, August, is also a hot month in Port Royal, Jamaica, with average temperature ranging between max 30.3°C (86.5°F) and min 24.2°C (75.6°F). With an average high-temperature of 30.3°C (86.5°F) and an average low-temperature of 24.2°C (75.6°F), August is the warmest month. The average heat index in August is appraised at a very hot 38.3°C (100.9°F). Weather in August »

Weather in September

September, the first month of the autumn, in Port Royal, is still a hot month, with temperature in the range of an average low of 24.1°C (75.4°F) and an average high of 30.1°C (86.2°F). In Port Royal, the average high-temperature is practically the same as in August - a still hot 30.1°C (86.2°F). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Port Royal, Jamaica, with average temperature fluctuating between 24°C (75.2°F) and 29.2°C (84.6°F). In October, the average high-temperature is practically the same as in September - a warm 29.2°C (84.6°F). Weather in October »

Weather in November

November, the last month of the autumn, in Port Royal, is another warm month, with average temperature ranging between min 23.4°C (74.1°F) and max 28.6°C (83.5°F). In Port Royal, the average high-temperature in November is essentially the same as in October - a still moderately hot 28.6°C (83.5°F). Weather in November »

Weather in December

December, the first month of the winter, in Port Royal, is also a moderately hot month, with average temperature fluctuating between 22.4°C (72.3°F) and 27.8°C (82°F). In December, the average high-temperature is essentially the same as in November - a still warm 27.8°C (82°F). Weather in December »
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FAQ

What are the coldest months in Port Royal?

The coldest months in Port Royal are January and February, with an average high-temperature of 27.3°C (81.1°F).

How much does it rain in Port Royal?

In Port Royal, during the entire year, the rain falls for 310.9 days and collects up to 1286mm (50.63") of precipitation.

When is the lowest UV index in Port Royal?

January through May, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Port Royal.

What is the driest month in Port Royal?

February is the month with the least rainfall in Port Royal. Rain falls for 22.1 days and accumulates 44mm (1.73") of precipitation.

What month is the sea coldest in Port Royal?

With an average sea temperature of 26.9°C (80.4°F), February is the month with the coldest seawater in Port Royal.

What is the least humid month in Port Royal?

The least humid month in Port Royal is March, with an average relative humidity of 78%.

When are the longest days in Port Royal?

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

When is the highest UV index in Port Royal?

June through October, with an average maximum UV index of 7, are months with the highest UV index.

What is the warmest month in Port Royal?

The warmest month is August, with an average high-temperature of 30.3°C (86.5°F) and an average low-temperature of 24.2°C (75.6°F).

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

August and September, with an average of 10.8h of sunshine, are months with the most sunshine in Port Royal, Jamaica.

When is the sea warmest in Port Royal?

With an average sea temperature of 29.5°C (85.1°F), September is the month with the warmest seawater in Port Royal, Jamaica.

What is the most humid month in Port Royal?

The most humid month in Port Royal, Jamaica, is October, with an average relative humidity of 82%.

What is the rainiest month in Port Royal?

The month with the most rainfall in Port Royal is October when the rain falls for 28.7 days and typically aggregates up to 184mm (7.24") of precipitation.

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

December has the shortest days of the year, with an average of 11.1h of daylight.

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

With an average of 6.5h of sunshine, December has the least sunshine of the year in Port Royal, Jamaica.

Average temperature
Port Royal, Jamaica

Average temperature - Port Royal, Jamaica

The warmest month (with the highest average high temperature) is August (30.3°C).
Months with the lowest average high temperature are January and February (27.3°C).

The month with the highest average low temperature is July (24.3°C).
The coldest month (with the lowest average low temperature) is February (21.6°C).

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Average pressure
Port Royal, Jamaica

Average pressure - Port Royal, Jamaica

The month with the highest atmospheric pressure is January (1015.5mbar).
The month with the lowest atmospheric pressure is October (1011.5mbar).

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Average wind speed
Port Royal, Jamaica

Average wind speed - Port Royal, Jamaica

The windiest month (with the highest average wind speed) is June (12.8km/h).
The calmest month (with the lowest average wind speed) is November (8.6km/h).

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Average humidity
Port Royal, Jamaica

Average humidity - Port Royal, Jamaica

The month with the highest relative humidity is October (82%).
The month with the lowest relative humidity is March (78%).

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Average rainfall
Port Royal, Jamaica

Average rainfall - Port Royal, Jamaica

The wettest month (with the highest rainfall) is October (184mm).
The driest month (with the least rainfall) is February (44mm).

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Average rainfall days
Port Royal, Jamaica

Average rainfall days - Port Royal, Jamaica

The month with the highest number of rainy days is October (28.7 days).
The month with the least rainy days is February (22.1 days).

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Average sea temperature
Port Royal, Jamaica

Average sea temperature - Port Royal, Jamaica

The best month for swimming (with the highest average sea temperature) is September (29.5°C).
The coldest month (with the lowest average sea temperature) is February (26.9°C).

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Average daylight / Average sunshine
Port Royal, Jamaica

Average daylight / Average sunshine - Port Royal, 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 August and September (Average sunshine: 10.8h).
The month with the least sunshine is December (Average sunshine: 6.5h).

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Average sunshine days
Port Royal, Jamaica

Average sunshine days - Port Royal, Jamaica

The month with the most sunshine days is January (3.4 days).
The month with the least sunshine days is August (0.3 days).

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Average UV index
Port Royal, Jamaica

Average UV index - Port Royal, Jamaica

Months with the highest UV index are June, July, August, September and October (UV index 7).
Months with the lowest UV index are January, February, March, April, May, November and December (UV index 6).

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Average visibility
Port Royal, Jamaica

Average visibility - Port Royal, Jamaica

Months with the highest visibility are January, February, March, April, June, July, November and December (10km).
Months with the lowest visibility are May, August, September and October (9km).

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