December weather forecast
Kokoda, Papua New Guinea

December embraces an overall high-temperature scenario with the highest recorded average at 30.2°C (86.4°F) in Kokoda. Contrarily, rainfall continues its downward trajectory from the November high. An increase in the frequency of rainy days, however, suggests frequent showers despite decreased volume. Despite the showers, copious sunshine hours enrich the daylight experiences. As the wind speed diminishes, the city takes on a placid personality, making December a calm month in Kokoda.

Temperature

December temperatures tend to peak at an average high of 30.2°C (86.4°F) and dip to a low of 24.5°C (76.1°F).

Heat index

The average heat index in December is appraised at a torrid 37°C (98.6°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Observations indicate that the heat index values are for shady locations with light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', melds the effects of warmth and moisture to generate a feeling of heat. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In December, the average relative humidity is 75%.

Rainfall

In December, the rain falls for 22.3 days. Throughout December, 106mm (4.17") of precipitation is accumulated. In Kokoda, during the entire year, the rain falls for 249.8 days and collects up to 1311mm (51.61") of precipitation.

Daylight

With an average of 12h and 36min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:40 and sunset at 18:16. On the last day of December, sunrise is at 05:53 and sunset at 18:31 +10.

Sunshine

In Kokoda, the average sunshine in December is 10.9h.

UV index

The months with the highest UV index are January, March through May, October through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 7 translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.