December weather forecast
Ibu, Indonesia

The first month of the winter, December, is also a moderately hot month in Ibu, Indonesia, with an average temperature ranging between max 29.5°C (85.1°F) and min 26°C (78.8°F).

Temperature

Ibu notes an average high-temperature of a still warm 29.5°C (85.1°F) in December, displaying minor variation from November. During the month of December, Ibu's average nighttime temperature closely mirrors its daytime counterpart, at a still warm 26°C (78.8°F).

Heat index

The average heat index in December is estimated at a very hot 36°C (96.8°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The average relative humidity in December is 78%.

Rainfall

In Ibu, during December, the rain falls for 26.1 days and regularly aggregates up to 175mm (6.89") of precipitation. Throughout the year, in Ibu, there are 299.4 rainfall days, and 1689mm (66.5") of precipitation is accumulated.

Daylight

The month with the shortest days in Ibu is December, with an average of 12h and 0min of daylight.
On the first day of December, sunrise is at 06:17 and sunset at 18:20. On the last day of the month, sunrise is at 06:31 and sunset at 18:33 WIT.

Sunshine

The average sunshine in December in Ibu, Indonesia, is 8.3h.

UV index

November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 6 during December leads to these instructions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.