December weather forecast
Ciruas, Indonesia

December, the first month of the summer in Ciruas, is still a hot month, with temperature in the range of an average low of 25.8°C (78.4°F) and an average high of 30.4°C (86.7°F).

Temperature

Ciruas experiences a minor change to a still hot 30.4°C (86.7°F) in average high-temperature during December, closely reflecting November. A slight dip in temperature to a moderately hot 25.8°C (78.4°F) marks the average nights during December.

Heat index

For most parts of December, the heat index is estimated at a sweltering 37°C (98.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. 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 are especially crucial for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in December in Ciruas is 75%.

Rainfall

In Ciruas, in December, it is raining for 27.4 days, with typically 128mm (5.04") of accumulated precipitation. Throughout the year, there are 271.6 rainfall days, and 1261mm (49.65") of precipitation is accumulated.

Daylight

The month with the longest days in Ciruas is December, with an average of 12h and 30min of daylight.
On the first day of December, sunrise is at 05:30 and sunset at 17:57. On the last day of the month, sunrise is at 05:43 and sunset at 18:12 WIB.

Sunshine

In Ciruas, the average sunshine in December is 8.9h.

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 value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A daily high UV index of 7 in December leads to these guidelines:
Fend off overexposure. Sun protection is vital. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.