December weather forecast
Tangerang, Indonesia

December brings Tangerang's climatic year to a close with mild temperatures centered around 30.5°C (86.9°F). Cloud cover makes a comeback, replacing the clear skies with a grayish hue spanning the city's expanses. The wind speed charts an uptick, clocking average speeds of 11.8km/h (7.3mph), offering a soothing counterbalance to the usual humidity. Daylight shores up to 12.5 hours daily, crowning December as the most luminous month of the year. As the year ends, December stands testimony to Tangerang's consistent weather, reflecting an equilibrium of rainfall, humidity, and temperature.

Temperature

A minor adjustment in Tangerang's average high-temperature is noted with the start of December, touching a still hot 30.5°C (86.9°F) from November's 30.9°C (87.6°F). December nights in Tangerang register a minor temperature decline, steadying at a moderately hot 26.3°C (79.3°F).

Heat index

December's mean heat index is calculated to be a sweltering 37°C (98.6°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Understand that the heat index values take into account shaded locations and mild winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In December, the average relative humidity in Tangerang is 73%.

Rainfall

In Tangerang, in December, it is raining for 24.9 days, with typically 128mm (5.04") of accumulated precipitation. Throughout the year, in Tangerang, there are 283.6 rainfall days, and 1323mm (52.09") of precipitation is accumulated.

Daylight

December has the longest days of the year in Tangerang, with an average of 12h and 30min of daylight.
On the first day of December in Tangerang, sunrise is at 05:28 and sunset at 17:56. On the last day of the month, sunrise is at 05:42 and sunset at 18:10 WIB.

Sunshine

In Tangerang, the average sunshine in December is 9.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Tangerang. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 during December translates into the following directions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.