December weather forecast
Tangunan, Indonesia

The first month of the summer, December, is still a hot month in Tangunan, Indonesia, with temperature in the range of an average low of 25.1°C (77.2°F) and an average high of 30°C (86°F).

Temperature

As December takes hold, the average high-temperature is a still tropical 30°C (86°F), nearly mirroring that of the previous month. Tangunan's nighttime average temperature in December drops marginally from the daytime highs, settling at a moderately hot 25.1°C (77.2°F).

Heat index

During December, the heat index is appraised at a fiery hot 37°C (98.6°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. 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. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Tangunan, in December, during 27.3 rainfall days, 137mm (5.39") of precipitation is typically accumulated. In Tangunan, Indonesia, during the entire year, the rain falls for 237 days and collects up to 1091mm (42.95") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 36min of daylight.
On the first day of the month, sunrise is at 05:03 and sunset at 17:35. On the last day of December, sunrise is at 05:16 and sunset at 17:49 WIB.

Sunshine

The average sunshine in December is 8.5h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, the maximum UV index of 7 transforms into these recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.