December weather forecast
Rajeg, Indonesia

The first month of the summer, December, is also a hot month in Rajeg, Indonesia, with an average temperature varying between 30.3°C (86.5°F) and 26.1°C (79°F).

Temperature

Welcoming December, Rajeg notes an average high-temperature of a still hot 30.3°C (86.5°F), nearly consistent with November's 30.7°C (87.3°F). An average low-temperature of 26.1°C (79°F) is witnessed throughout the month of December, a mere drop from the daytime peak.

Heat index

The heat index for December is calculated to be a fiery hot 37°C (98.6°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Consider that heat index readings are for situations in the shade and light wind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in December is 73%.

Rainfall

In Rajeg, in December, it is raining for 24.7 days, with typically 122mm (4.8") of accumulated precipitation. Throughout the year, there are 283.8 rainfall days, and 1301mm (51.22") of precipitation is accumulated.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 05:29 and sunset at 17:56. On the last day of the month, sunrise is at 05:42 and sunset at 18:11 WIB.

Sunshine

In December, the average sunshine is 9.6h.

UV index

The months with the highest UV index in Rajeg 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 estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 7 suggests this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.