Monthly weather forecast and climate
Port Moresby, Papua New Guinea

The mountains and beautiful clear waters surrounding the beautiful Port Moresby, in Papua New Guinea
The mountains and beautiful clear waters surrounding the beautiful Port Moresby, in Papua New Guinea

Weather in January

January, like December, in Port Moresby, Papua New Guinea, is a moderately hot summer month, with average temperature varying between 24.4°C (75.9°F) and 29.8°C (85.6°F). In Port Moresby, Papua New Guinea, the average high-temperature in January is relatively the same as in December - a moderately hot 29.8°C (85.6°F). Weather in January »

Weather in February

The last month of the summer, February, is also a moderately hot month in Port Moresby, Papua New Guinea, with average temperature ranging between max 29.6°C (85.3°F) and min 24.3°C (75.7°F). In February, the average high-temperature is almost the same as in January - a still moderately hot 29.6°C (85.3°F). Weather in February »

Weather in March

March, the first month of the autumn, in Port Moresby, is also a moderately hot month, with average temperature varying between 29.3°C (84.7°F) and 24.3°C (75.7°F). In March, the average high-temperature is almost the same as in February - a still warm 29.3°C (84.7°F). Weather in March »

Weather in April

April, the same as March, is another warm autumn month in Port Moresby, Papua New Guinea, with average temperature fluctuating between 24.2°C (75.6°F) and 29.1°C (84.4°F). In Port Moresby, Papua New Guinea, the average high-temperature in April is practically the same as in March - a still warm 29.1°C (84.4°F). Weather in April »

Weather in May

May, the last month of the autumn, in Port Moresby, is another warm month, with temperature in the range of an average low of 24.1°C (75.4°F) and an average high of 28.9°C (84°F). In May, the average high-temperature is practically the same as in April - a still warm 28.9°C (84°F). Weather in May »

Weather in June

June, the first month of the winter, in Port Moresby, is also a moderately hot month, with temperature in the range of an average high of 28°C (82.4°F) and an average low of 23.5°C (74.3°F). In Port Moresby, the average high-temperature in June is practically the same as in May - a still moderately hot 28°C (82.4°F). Weather in June »

Weather in July

July, like June, in Port Moresby, Papua New Guinea, is another warm winter month, with temperature in the range of an average high of 27.6°C (81.7°F) and an average low of 22.7°C (72.9°F). The coldest months are July and August, with an average high-temperature of 27.6°C (81.7°F). In July, the average heat index is estimated at a tropical 30.9°C (87.6°F). Weather in July »

Weather in August

The last month of the winter, August, is also a moderately hot month in Port Moresby, Papua New Guinea, with average temperature ranging between min 22.5°C (72.5°F) and max 27.6°C (81.7°F). July and August, with an average high-temperature of 27.6°C (81.7°F), are the coldest months. The average heat index in August is calculated to a hot 31°C (87.8°F). Weather in August »

Weather in September

September, the first month of the spring, in Port Moresby, is also a moderately hot month, with average temperature fluctuating between 28°C (82.4°F) and 22.7°C (72.9°F). In September, the average high-temperature is practically the same as in August - a still warm 28°C (82.4°F). Weather in September »

Weather in October

October, the same as September, is a moderately hot spring month in Port Moresby, Papua New Guinea, with average temperature ranging between min 23.4°C (74.1°F) and max 29°C (84.2°F). In Port Moresby, the average high-temperature in October is almost the same as in September - a still warm 29°C (84.2°F). Weather in October »

Weather in November

November, the last month of the spring, in Port Moresby, is also a moderately hot month, with average temperature varying between 24°C (75.2°F) and 29.7°C (85.5°F). In Port Moresby, the average high-temperature is almost the same as in October - a still moderately hot 29.7°C (85.5°F). Weather in November »

Weather in December

December, the first month of the summer, in Port Moresby, is a tropical month, with average temperature ranging between min 24.5°C (76.1°F) and max 30.2°C (86.4°F). With an average high-temperature of 30.2°C (86.4°F) and an average low-temperature of 24.5°C (76.1°F), December is the warmest month. The average heat index is calculated to a very hot 36.9°C (98.4°F). Weather in December »
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FAQ

What are the least humid months in Port Moresby?

January and February, with an average relative humidity of 73%, are the least humid months.

How many days does it rain in Port Moresby?

In Port Moresby, during the entire year, the rain falls for 249.8 days and collects up to 1311mm (51.61") of precipitation.

When is the sea warmest in Port Moresby?

January is the month with the warmest seawater in Port Moresby, Papua New Guinea, with an average sea temperature of 29.7°C (85.5°F).

What are the months with the highest UV index in Port Moresby?

Months with the highest UV index are January, March through May, October through December, with an average maximum UV index of 7.

What is the month with the lowest UV index in Port Moresby?

February, June through September, with an average maximum UV index of 6, are months with the lowest UV index in Port Moresby, Papua New Guinea.

What is the rainiest month in Port Moresby?

March is the month with the most rainfall in Port Moresby. Rain falls for 24.6 days and accumulates 203mm (7.99") of precipitation.

What is the most humid month in Port Moresby?

Months with the highest humidity are May and June, with an average relative humidity of 80%.

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

With an average of 7.1h of sunshine, May has the least sunshine of the year.

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

Months with the shortest days in Port Moresby are June and July, with an average of 11.6h of daylight.

What is the coldest month in Port Moresby?

The coldest months in Port Moresby are July and August, with an average high-temperature of 27.6°C (81.7°F).

What is the driest month in Port Moresby?

The month with the least rainfall is July when the rain falls for 14.7 days and typically collects 46mm (1.81") of precipitation.

What month is the sea coldest in Port Moresby?

The month with the coldest seawater is August, with an average sea temperature of 25.6°C (78.1°F).

What month has the most sunshine in Port Moresby?

November has the most sunshine of the year in Port Moresby, with an average of 11.3h of sunshine.

What is the warmest month in Port Moresby?

With an average high-temperature of 30.2°C (86.4°F) and an average low-temperature of 24.5°C (76.1°F), December is the warmest month.

When are the longest days in Port Moresby?

With an average of 12.7h of daylight, December has the longest days of the year.

Average temperature
Port Moresby, Papua New Guinea

Average temperature - Port Moresby, Papua New Guinea

The warmest month (with the highest average high temperature) is December (30.2°C).
Months with the lowest average high temperature are July and August (27.6°C).

The month with the highest average low temperature is December (24.5°C).
The coldest month (with the lowest average low temperature) is August (22.5°C).

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Average pressure
Port Moresby, Papua New Guinea

Average pressure - Port Moresby, Papua New Guinea

The month with the highest atmospheric pressure is August (1012.1mbar).
The month with the lowest atmospheric pressure is January (1007.9mbar).

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Average wind speed
Port Moresby, Papua New Guinea

Average wind speed - Port Moresby, Papua New Guinea

The windiest month (with the highest average wind speed) is July (18.9km/h).
The calmest month (with the lowest average wind speed) is December (9.7km/h).

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Average humidity
Port Moresby, Papua New Guinea

Average humidity - Port Moresby, Papua New Guinea

Months with the highest relative humidity are May and June (80%).
Months with the lowest relative humidity are January and February (73%).

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Average rainfall
Port Moresby, Papua New Guinea

Average rainfall - Port Moresby, Papua New Guinea

The wettest month (with the highest rainfall) is March (203mm).
The driest month (with the least rainfall) is July (46mm).

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Average rainfall days
Port Moresby, Papua New Guinea

Average rainfall days - Port Moresby, Papua New Guinea

The month with the highest number of rainy days is March (24.6 days).
The month with the least rainy days is July (14.7 days).

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Average sea temperature
Port Moresby, Papua New Guinea

Average sea temperature - Port Moresby, Papua New Guinea

The best month for swimming (with the highest average sea temperature) is January (29.7°C).
The coldest month (with the lowest average sea temperature) is August (25.6°C).

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Average daylight / Average sunshine
Port Moresby, Papua New Guinea

Average daylight / Average sunshine - Port Moresby, Papua New Guinea

The month with the longest days is December (Average daylight: 12.7h).
Months with the shortest days are June and July (Average daylight: 11.6h).

The month with the most sunshine is November (Average sunshine: 11.3h).
The month with the least sunshine is May (Average sunshine: 7.1h).

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Average sunshine days
Port Moresby, Papua New Guinea

Average sunshine days - Port Moresby, Papua New Guinea

The month with the most sunshine days is July (13.4 days).
Months with the least sunshine days are March and April (5.2 days).

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Average UV index
Port Moresby, Papua New Guinea

Average UV index - Port Moresby, Papua New Guinea

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

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Average visibility
Port Moresby, Papua New Guinea

Average visibility - Port Moresby, Papua New Guinea

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

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