December weather forecast
Bumi, Indonesia

The first month of the summer, December, is still a warm month in Bumi, Indonesia, with an average temperature ranging between min 22.1°C (71.8°F) and max 28.9°C (84°F).

Temperature

The onset of December notes an average high-temperature of a still warm 28.9°C (84°F), subtly shifted from November's 29.9°C (85.8°F). Bumi experiences a consistent average temperature of 22.1°C (71.8°F) throughout the nights in December.

Heat index

December's mean heat index is appraised at a sweltering 35°C (95°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in December in Bumi is 83%.

Rainfall

In Bumi, Indonesia, in December, during 29 rainfall days, 230mm (9.06") of precipitation is typically accumulated. In Bumi, during the entire year, the rain falls for 276.6 days and collects up to 2049mm (80.67") of precipitation.

Daylight

With an average of 12h and 36min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 05:09 and sunset at 17:41. On the last day of the month, sunrise is at 05:23 and sunset at 17:56 WIB.

Sunshine

The months with the least sunshine in Bumi are January and December, with an average of 7h of sunshine.

UV index

The months with the lowest UV index in Bumi are January through August, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a daily maximum UV index of 6 leads to the following instructions:
Shun overexposure. Protection from sun ravages is indispensable. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Boost your sun resistance with garments that are densely woven yet spacious.