December weather forecast
Malang, Indonesia

In December, Malang holds on to its rainy and warm attributes. Despite the continued rainfall, sunlight persists throughout broader parts of the day. The month witnesses seasonal festivities with an engaging amalgamation of rain and sunlight. The calmer winds experienced in November continue through December, contributing to a quiet ambiance even during the peaks of the rainy season. Wrapping the year, December offers a diverse blend of weather peculiarities, making it a fascinating time for guests and locals.

Temperature

Malang starts December with an average high-temperature of a still tropical 30.5°C (86.9°F), hinting at a minimal fluctuation from November. Malang experiences a steady low-temperature of 23.6°C (74.5°F) throughout December.

Heat index

For December, the heat index is evaluated at a blisteringly hot 40°C (104°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In Malang, the average relative humidity in December is 81%.

Rainfall

In Malang, Indonesia, during December, the rain falls for 24.8 days and regularly aggregates up to 141mm (5.55") of precipitation. Throughout the year, there are 223 rainfall days, and 1083mm (42.64") of precipitation is accumulated.

Daylight

With an average of 12h and 36min of daylight, December has the longest days of the year in Malang.
On the first day of the month, sunrise is at 05:01 and sunset at 17:35. On the last day of December, in Malang, sunrise is at 05:15 and sunset at 17:49 WIB.

Sunshine

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

UV index

April, June through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 7 in December translates into this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.