Madang Weather in December
During December, Madang experiences very high daytime temperatures of 30°C (86°F) and cooler nights around 25°C (77°F). December sits within the rainy season, so expect regular and often heavy rainfall.
Rainfall in Madang in December
Madang is in the rainy season in December, with rain on around 22 days and an average of 421 mm (17 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Madang in December
In December, Madang sees very high temperatures, with highs of 30°C (86°F). Nights drop to around 25°C (77°F). For most visitors, the main thing to prepare for is the heat during the day. Nights are warm at 25°C (77°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Madang in December
With about 167 hours of sunshine, the area enjoys a nice balance of sun and rainy moments, creating a pleasant environment.
Wind Speed in Madang in December
Wind speeds average 2 m/s (4 knots) during December. At this speed, expect light breezes that you can feel on your face and cause leaves to rustle gently. Since this is an average, some days are calmer with barely any wind while others have more noticeable gentle breezes.
Average water temperature in December
At 29°C (84°F), the water is very warm — more like a heated pool than the sea. Great for those who like warm water, though some may find it less refreshing on a hot day.December in Madang has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Papua New Guinea, check out our Madang's climate page.
Madang Temperature in December
Min Temperature
25°C (77°F)
Max Temperature
30°C (86°F)
Water Temperature
29°C (84°F)
Chance of Rain
74%
Precipitation
421 mm (17 in)
Rainy days
22 days
Humidity
81%
Windspeed
2 m/s (4 knots)
Sunshine
167 hours
Percentage Sunshine
Daily Historical Temperatures
42-year average (1976-2025)
Based on our historical records, temperatures in Madang typically stay consistent throughout December, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in December
Historical weather for Madang in December
Browse day-by-day weather records for Madang spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Madang historical weather extremes in December
Based on 19 years of weather observations in Madang between 2006 and 2025, these are the recorded extremes.
- On December 7, 2019, temperatures climbed to 33°C (91°F), marking the warmest December day on record.
- The lowest daytime temperature in December was 26°C (79°F), recorded on December 30, 2013.
- The lowest overnight temperature recorded in December was 23°C (73°F) (December 25, 2025).
- The heaviest December precipitation occurred on December 2, 2017, when 142 mm (5.6 in) of precipitation fell.
Best Places in Papua New Guinea in December
Find out more about the weather in Papua New Guinea and which places have the best travel conditions in this month. See all of Papua New Guinea in December →
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What to Wear in Madang in December
Warm weather calls for comfortable, breathable clothing in December. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. With water temperatures around 29°C (84°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Madang in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Papua New Guinea, check out our Madang's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Madang climate overview or explore weather in Papua New Guinea.
