December weather forecast
Sutorejo Utara, Indonesia

The first month of the summer, December, is also a hot month in Sutorejo Utara, Indonesia, with an average temperature ranging between min 26.3°C (79.3°F) and max 31.2°C (88.2°F).

Temperature

December's average high-temperature is a still hot 31.2°C (88.2°F), maintaining a close comparison with November's 32.4°C (90.3°F). During December, Sutorejo Utara's nighttime temperatures demonstrate a subtle cooling from daytime highs, stabilizing at a warm 26.3°C (79.3°F).

Heat index

December's heat index is estimated at a very hot 39°C (102.2°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. 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. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

The average relative humidity in December in Sutorejo Utara is 74%.

Rainfall

In Sutorejo Utara, in December, it is raining for 24.7 days, with typically 102mm (4.02") of accumulated precipitation. Throughout the year, there are 187.8 rainfall days, and 839mm (33.03") 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 December, sunrise is at 05:02 and sunset at 17:33. On the last day of the month, sunrise is at 05:15 and sunset at 17:48 WIB.

Sunshine

The average sunshine in December is 8.6h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 7 during December translates into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.