December weather forecast
Madang, Papua New Guinea

December in Madang wraps up the year on an energetic note, maintaining the excitement across the weather spectrum. The atmosphere buzzes with festive advent, reinforced by the dynamic interplay of sunshine and rainfall. Holidaymakers find themselves gravitated towards the region, adding to the seasonal cheer. Wet days outnumber their dry counterparts as rainfall peaks to 382mm (15.04"). Despite increased precipitation, December remains a favourite amongst visitors, providing the perfect end to the year's weather tapestry.

Temperature

The dawn of December sees an average high-temperature of a still hot 30.9°C (87.6°F), subtly contrasting with November's 31.2°C (88.2°F). December generally records an average low-temperature of 23.9°C (75°F).

Heat index

The heat index value during December is calculated to be a scorching 42°C (107.6°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in December is 84%.

Rainfall

In Madang, in December, it is raining for 23 days, with typically 382mm (15.04") of accumulated precipitation. In Madang, during the entire year, the rain falls for 224 days and collects up to 3107mm (122.32") of precipitation.

Sea temperature

With an average sea temperature of 29.9°C (85.8°F), December is the month with the warmest seawater.
Note: Water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are warm and delightful, ensuring comfort during water activities over extended periods.

Daylight

The month with the longest days is December, with an average of 12h and 24min of daylight.
On the first day of December, sunrise is at 05:53 and sunset at 18:18. On the last day of the month, sunrise is at 06:07 and sunset at 18:32 +10.

Sunshine

In December, the average sunshine is 5.2h.

UV index

January through May, August through December, with an average maximum UV index of 12, are months with the highest UV index. A UV Index reading of 11, and higher, represents an excessive health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: During December, 12 as the daily maximum UV index converts into the following advice:
Take all necessary precautions, as unprotected skin can burn in minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. 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. Notice! Sand and water reflections contribute to a stronger UV exposure.