December weather forecast
Cirebon, Indonesia

As December unfolds, Cirebon, Indonesia gears up for another cycle of its tropical climate. With an increase to 173mm (6.81"), the rainfall nears the year's start levels. Even so, the city radiates festive warmth and hospitality. The weather renders a perfect setting for the multitude of year-end celebrations taking place around town. The culmination of the year portrays Cirebon in a unique blend of tropical climate and festive mood, creating a must-visit winter holiday destination.

Temperature

December brings an average high-temperature of a still hot 30.2°C (86.4°F), nearly identical to the preceding month. The December nights show a slight decrease to a mean low-temperature of 25.2°C (77.4°F).

Heat index

The heat index for December is calculated to be a sweltering 37°C (98.6°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Note that heat index values are valued for light wind and location in the shade. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in December is 76%.

Rainfall

In Cirebon, in December, during 27.5 rainfall days, 173mm (6.81") of precipitation is typically accumulated. In Cirebon, during the entire year, the rain falls for 244.1 days and collects up to 1216mm (47.87") of precipitation.

Sea temperature

December is the month with the warmest seawater, with an average sea temperature of 29.9°C (85.8°F).
Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) offer outstanding conditions for any water activity, providing extreme pleasure for extended periods.

Daylight

December has the longest days of the year in Cirebon, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:20 and sunset at 17:49. On the last day of December, sunrise is at 05:33 and sunset at 18:04 WIB.

Sunshine

With an average of 8.3h 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. The months with the lowest UV index in Cirebon are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 7 during December leads to these advisories:
Stay clear of intense sun exposure. Solar protection is of utmost significance. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Alert! UV radiation becomes sharper due to reflections from sand and water.