Port Moresby weather in December (Papua Region, Papua New Guinea)

How is the weather in Port Moresby in December? Wondering if it's a favorable time for a visit? This page provides detailed information on the weather conditions for that month.

In December, the weather in Port Moresby typically experiences very high temperatures and heavy rainfall. Anticipate daytime temperatures around 88°F (show in °C), while night temperatures can drop to 76°F.

Keep in mind that while these are the average temperatures, there can be days that are even hotter. It's essential to be prepared for such heat. Wearing light, breathable fabrics and protecting yourself from the sun's intensity with hats or shades can make a difference. Hydration is key, so remember to drink plenty of water, especially if you find yourself outdoors for extended periods.

Port Moresby in December falls under the rainy season with heavy rainfall, averaging around 7.7 inches (show in mm) for the month. When we look at the climate data from the last 30 years, we can expect around 13 days of rain.

The city usually sees around 218 hours of sunlight, indicating many sunny days.

If your ideal weather consists of dry skies and moderate temperatures July and August generally stand out with best weather. While January, February, March and April tend to showcase less optimal conditions.

For an in-depth look at the yearly weather and climate conditions, visit our specialized Port Moresby climate page with graphs.


Port Moresby, monthly averages in December

Show in Celsius
Min Temperature 75.9°F  
Max Temperature 88°F  
Water Temperature 82°F  
Chance of Rain 43%  
Precipitation 7.7 inches  
Rainy days 13 days  
Humidity 77%  
Sunshine 218 hours  
Percentage Sunshine  

Where to go in Papua New Guinea in December

Find out more about the weather in Papua New Guinea in December and which places have the best weather conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

So, what should you wear in Port Moresby in December?

​ It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case. ​ With a water temperature of around 82°F this is a great month to swim so bring your swimwear. ​

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in December.

Outdoor sports

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Port Moresby.

Our site offers climate and forecast data for every country in the world. Are you going to Papua New Guinea? On this website you can find historical weather averages for many cities in Papua New Guinea. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.