December weather forecastDemak, Indonesia

Weather in December

The first month of the summer, December, is still a tropical month in Demak, Indonesia, with temperature in the range of an average high of 30.7°C (87.3°F) and an average low of 25°C (77°F).

Temperature

Transitioning into December, Demak records an average high-temperature of a still tropical 30.7°C (87.3°F), almost identical to November's 32.1°C (89.8°F). During the month of December, Demak anticipates a mean low-temperature of 25°C (77°F).

Heat index

The heat index for December is computed to be a blistering 40°C (104°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in December in Demak is 79%.

Rainfall

In Demak, during December, the rain falls for 26.3 days and regularly aggregates up to 159mm (6.26") of precipitation. In Demak, Indonesia, during the entire year, the rain falls for 239.6 days and collects up to 1140mm (44.88") of precipitation.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year in Demak.
On the first day of December, sunrise is at 05:11 and sunset at 17:41. On the last day of the month, sunrise is at 05:24 and sunset at 17:56 WIB.

Sunshine

December has the least sunshine of the year, with an average of 7.8h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Demak. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 7 in December translates into the following instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.