Port Moresby
Papua New Guinea
Long-term weather forecast
Long-term weather forecast

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
The best months for a swim in Port Moresby, Papua New Guinea, are July through October, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.
January, like December, is a hot summer month in Port Moresby, Papua New Guinea, with temperature in the range of an average low of 23.7°C (74.7°F) and an average high of 32.1°C (89.8°F). In Port Moresby, the average high-temperature in January is essentially the same as in December - a still hot 32.1°C (89.8°F). Weather in January »

The last month of the summer, February, is another tropical month in Port Moresby, Papua New Guinea, with average temperature ranging between min 23.5°C (74.3°F) and max 31.6°C (88.9°F). In Port Moresby, the average high-temperature is essentially the same as in January - a still tropical 31.6°C (88.9°F). Weather in February »

The first month of the autumn, March, is still a tropical month in Port Moresby, Papua New Guinea, with average temperature varying between 23.4°C (74.1°F) and 31.4°C (88.5°F). In Port Moresby, the average high-temperature is practically the same as in February - a still hot 31.4°C (88.5°F). Weather in March »

April, the same as March, in Port Moresby, Papua New Guinea, is another hot autumn month, with average temperature ranging between min 23.5°C (74.3°F) and max 31.3°C (88.3°F). In Port Moresby, the average high-temperature is essentially the same as in March - a still hot 31.3°C (88.3°F). Weather in April »

May, the last month of the autumn, in Port Moresby, is also a hot month, with average temperature ranging between max 31°C (87.8°F) and min 23.5°C (74.3°F). In Port Moresby, Papua New Guinea, the average high-temperature in May is almost the same as in April - a still hot 31°C (87.8°F). Weather in May »

June, the first month of the winter, in Port Moresby, is still a tropical month, with average temperature ranging between min 23.1°C (73.6°F) and max 30.3°C (86.5°F). In June, the average high-temperature is practically the same as in May - a still hot 30.3°C (86.5°F). Weather in June »

July, the same as June, is a moderately hot winter month in Port Moresby, Papua New Guinea, with average temperature ranging between max 29.9°C (85.8°F) and min 22.4°C (72.3°F). The ideal sea water temperature of 26.2°C (79.2°F) and only 4 rainfall days, with 13.8mm (0.5") of accumulated rainfall, make July the best time for swimming and other water activities. Weather in July »

August, the last month of the winter, in Port Moresby, is a tropical month, with average temperature ranging between max 30.3°C (86.5°F) and min 22.6°C (72.7°F). The ideal sea water temperature of 25.6°C (78.1°F) and only 4 rainfall days, with 12mm (0.5") of accumulated rainfall, make August the best time for swimming and other water activities. Weather in August »

September, the first month of the spring, in Port Moresby, is still a tropical month, with average temperature fluctuating between 31°C (87.8°F) and 23.2°C (73.8°F). The ideal sea water temperature of 25.9°C (78.6°F) and only 5 rainfall days, with 14.4mm (0.6") of accumulated rainfall, make September the best time for swimming and other water activities. Weather in September »

October, like September, is a hot spring month in Port Moresby, Papua New Guinea, with average temperature ranging between max 32°C (89.6°F) and min 23.5°C (74.3°F). The ideal sea water temperature of 27.2°C (81°F) and only 5 rainfall days, with 15.2mm (0.6") of accumulated rainfall, make October the best time for swimming and other water activities. Weather in October »

The last month of the spring, November, is also a hot month in Port Moresby, Papua New Guinea, with average temperature ranging between min 23.6°C (74.5°F) and max 32.5°C (90.5°F). The warmest month is November, with an average high-temperature of 32.5°C (90.5°F) and an average low-temperature of 23.6°C (74.5°F). The average heat index in November is calculated to a scorching 44°C (111.2°F). Weather in November »

The first month of the summer, December, is still a hot month in Port Moresby, Papua New Guinea, with average temperature varying between 32.4°C (90.3°F) and 23.7°C (74.7°F). In Port Moresby, the average high-temperature is almost the same as in November - a still hot 32.4°C (90.3°F). Weather in December »

How many days does it rain in Port Moresby?

Throughout the year, in Port Moresby, Papua New Guinea, there are 114 rainfall days, and 898.8mm (35.4") of precipitation is accumulated.

What is the wettest month in Port Moresby?

January is the month with the most rainfall in Port Moresby. Rain falls for 18 days and accumulates 192.2mm (7.6") of precipitation.

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

January is the month with the warmest seawater, with an average sea temperature of 29.7°C (85.5°F).

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

Months with the highest UV index in Port Moresby, Papua New Guinea, are January through April, August through December, with an average maximum UV index of 12.

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

The month with the least sunshine is February, with an average of 5.6h of sunshine.

What is the most humid month in Port Moresby?

The most humid month in Port Moresby, Papua New Guinea, is April, with an average relative humidity of 82%.

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

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

When is the lowest UV index in Port Moresby?

The month with the lowest UV index in Port Moresby is June, with an average maximum UV index of 9.

What is the coldest month in Port Moresby?

With an average high-temperature of 29.9°C (85.8°F) and an average low-temperature of 22.4°C (72.3°F), July is the coldest month.

What is the driest month in Port Moresby?

August is the month with the least rainfall in Port Moresby, Papua New Guinea. Rain falls for 4 days and accumulates 12mm (0.5") of precipitation.

What is the month with the coldest sea water in Port Moresby?

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

What is the warmest month in Port Moresby?

November is the warmest month in Port Moresby, Papua New Guinea, with an average high-temperature of 32.5°C (90.5°F) and an average low-temperature of 23.6°C (74.5°F).

What is the least humid month in Port Moresby?

With an average relative humidity of 75%, November is the least humid month in Port Moresby.

What month has the most sunshine in Port Moresby?

The month with the most sunshine in Port Moresby, Papua New Guinea, is November, with an average of 8.1h of sunshine.

When are the longest days in Port Moresby?

December has the longest days of the year in Port Moresby, with an average of 12.7h of daylight.
Average temperature - Port Moresby, Papua New Guinea
Average humidity - Port Moresby, Papua New Guinea
Average rainfall - Port Moresby, Papua New Guinea

The wettest month (with the highest rainfall) is January (192.2mm).
The driest month (with the lowest rainfall) is August (12mm).

Average rainfall days - Port Moresby, Papua New Guinea

Months with the highest number of rainy days are January and March (18 days).
Months with the lowest number of rainy days are July and August (4 days).

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).

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

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

The month with most sunshine is November (Average sunshine: 8.1h).
The month with least sunshine is February (Average sunshine: 5.6h).

Average UV index - Port Moresby, Papua New Guinea

Months with the highest UV index are January, February, March, April, August, September, October, November and December (UV index 12).
The month with the lowest UV index is June (UV index 9).