December weather forecast
Nganjuk, Indonesia

December, the first month of the summer in Nganjuk, is also a hot month, with an average temperature fluctuating between 30.9°C (87.6°F) and 23.5°C (74.3°F).

Temperature

With the advent of December, Nganjuk experiences an average high-temperature of a still tropical 30.9°C (87.6°F), mirroring a close resemblance to the previous month. An average low-temperature of 23.5°C (74.3°F) is observed during December nights.

Heat index

The heat index value during December is computed to be an extremely hot 41°C (105.8°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In December, the average relative humidity is 81%.

Rainfall

In Nganjuk, Indonesia, in December, during 21.9 rainfall days, 111mm (4.37") of precipitation is typically accumulated. Throughout the year, there are 193 rainfall days, and 897mm (35.31") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 12h and 36min of daylight.
On the first day of December, sunrise is at 05:05 and sunset at 17:37. On the last day of the month, sunrise is at 05:18 and sunset at 17:52 WIB.

Sunshine

In Nganjuk, the average sunshine in December is 7.7h.

UV index

The months with the highest UV index are February, April 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: In December, the average maximum UV index of 7 translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Boost your sun resistance with garments that are densely woven yet spacious.