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

May 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 last month of the autumn, May, is another tropical month in Port Moresby, Papua New Guinea, with average temperature varying between 31°C (87.8°F) and 23.5°C (74.3°F).

Temperature

In May, the average high-temperature is practically the same as in April - a still hot 31°C (87.8°F). In May, in Port Moresby, the average low-temperature is 23.5°C (74.3°F).

Humidity

In Port Moresby, the average relative humidity is 81%.

Rainfall

In May, the rain falls for 9 days. Throughout May, 56.2mm (2.2") of precipitation is accumulated. In Port Moresby, during the entire year, the rain falls for 114 days and collects up to 898.8mm (35.4") of precipitation.

Sea temperature

In Port Moresby, the average seawater temperature is 27.5°C (81.5°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In Port Moresby, the average length of the day in May is 11.7h.

Sunshine

The average sunshine in May is 6.8h.

UV index

In May, the average daily maximum UV index in Port Moresby is 11. A UV Index value of 11, and more, symbolizes an ultimate health vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
The average daily UV index of 11 transform into the following instructions:
Take all required precautions, as unprotected skin and eyes can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in May in Port Moresby?

The average high-temperature, in May, is 31°C (87.8°F), while the average low-temperature is 23.5°C (74.3°F).

What is the average humidity in May in Port Moresby?

The average relative humidity in May in Port Moresby, Papua New Guinea, is 81%.

How many days does it rain in May in Port Moresby?

In May, the rain falls for 9 days. Throughout May, 56.2mm (2.2") of precipitation is accumulated.

How warm is the water in May in Port Moresby?

In May, the average sea temperature is 27.5°C (81.5°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in May in Port Moresby?

In May, the average length of the day in Port Moresby is 11.7h.

How long on average sun shines in May in Port Moresby?

The average sunshine in May in Port Moresby is 6.8h.

How high is the UV index in May in Port Moresby?

In May, the average daily maximum UV index in Port Moresby is 11. A UV Index estimate of 11, and higher, represents an extreme health threat from the exposure to the Sun's UV rays.
Average temperature in May - Port Moresby, Papua New Guinea
  • Average high temperature in May: 31°C

The warmest month (with the highest average high temperature) is November (32.5°C).
The month with the lowest average high temperature is July (29.9°C).

  • Average low temperature in May: 23.5°C

Months with the highest average low temperature are January and December (23.7°C).
The coldest month (with the lowest average low temperature) is July (22.4°C).

Average humidity in May - Port Moresby, Papua New Guinea
  • Average humidity in May: 81%

The month with the highest relative humidity is April (82%).
The month with the lowest relative humidity is November (75%).

Average rainfall in May - Port Moresby, Papua New Guinea
  • Average rainfall in May: 56.2mm

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

Average rainfall days in May - Port Moresby, Papua New Guinea
  • Average rainfall days in May: 9 days

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 in May - Port Moresby, Papua New Guinea
  • Average sea temperature in May: 27.5°C

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 in May / Average sunshine in May - Port Moresby, Papua New Guinea
  • Average daylight in May: 11.7h

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

  • Average sunshine in May: 6.8h

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 in May - Port Moresby, Papua New Guinea
  • Average UV index in May: 11

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).