December weather forecast
Ciseeng, Indonesia

December, the first month of the summer in Ciseeng, is also a hot month, with an average temperature ranging between min 24.1°C (75.4°F) and max 30.5°C (86.9°F).

Temperature

The arrival of December sees an average high-temperature of a still hot 30.5°C (86.9°F), hardly diverging from November's 31.2°C (88.2°F). Ciseeng experiences a steady low-temperature of 24.1°C (75.4°F) throughout December.

Heat index

The average heat index in December is estimated at a sweltering 38°C (100.4°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Records show heat index calculations are tailored for shaded regions and mild winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

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

Rainfall

In December, in Ciseeng, the rain falls for 26.7 days. Throughout December, 179mm (7.05") of precipitation is accumulated. Throughout the year, in Ciseeng, there are 276.8 rainfall days, and 1698mm (66.85") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:28 and sunset at 17:56. On the last day of December, sunrise is at 05:41 and sunset at 18:11 WIB.

Sunshine

In Ciseeng, the average sunshine in December is 8.7h.

UV index

March through December, with an average maximum UV index of 7, are months with the highest UV index in Ciseeng. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 7 during December translates into the following guidance:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. 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. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.