December weather forecast
Wirun, Indonesia

The first month of the summer, December, is still a warm month in Wirun, Indonesia, with an average temperature ranging between min 22.1°C (71.8°F) and max 28.9°C (84°F).

Temperature

With the onset of December, the average high-temperature registers at a still warm 28.9°C (84°F), subtly different from November's 29.9°C (85.8°F). Wirun throughout December, experiences an average nighttime temperature of 22.1°C (71.8°F).

Heat index

The average heat index in December is estimated at a sweltering 35°C (95°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In Wirun, the average relative humidity in December is 83%.

Rainfall

In December, in Wirun, the rain falls for 29 days. Throughout December, 229mm (9.02") of precipitation is accumulated. Throughout the year, there are 276.8 rainfall days, and 2048mm (80.63") of precipitation is accumulated.

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 05:09 and sunset at 17:41. On the last day of December, sunrise is at 05:22 and sunset at 17:56 WIB.

Sunshine

The months with the least sunshine are January and December, with an average of 7h of sunshine.

UV index

January through August, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the UV index of 6 transforms into the following advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. 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. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.