December weather forecast
Kalibuntu, Indonesia

December, the first month of the summer in Kalibuntu, is still a tropical month, with temperature in the range of an average high of 30.2°C (86.4°F) and an average low of 25.5°C (77.9°F).

Temperature

Kalibuntu indicates an average high-temperature of a still hot 30.2°C (86.4°F) in December, showing minor variation from November's 30.8°C (87.4°F). A steady low-temperature average of 25.5°C (77.9°F) is logged during December, reflecting a modest dip from daytime readings.

Heat index

In December, the heat index is calculated to be a torrid 37°C (98.6°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Heat index evaluations are typically in the context of light winds and shaded environments. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for 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.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In Kalibuntu, the average relative humidity in December is 75%.

Rainfall

In December, the rain falls for 27.3 days. Throughout December, 179mm (7.05") of precipitation is accumulated. In Kalibuntu, during the entire year, the rain falls for 227.1 days and collects up to 1284mm (50.55") of precipitation.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:19 and sunset at 17:48. On the last day of December, sunrise is at 05:32 and sunset at 18:03 WIB.

Sunshine

With an average of 8h of sunshine, December has the least sunshine of the year.

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 reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 7 in December transforms into this advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.