December weather forecast
Muara Bulian, Indonesia

December, the first month of the summer in Muara Bulian, is still a tropical month, with an average temperature fluctuating between 23.4°C (74.1°F) and 30.5°C (86.9°F).

Temperature

The coldest period tends to be December, when average temperatures fluctuate between a high of 30.5°C (86.9°F) and a low of 23.4°C (74.1°F).

Heat index

The heat index for December is computed to be a blistering 42°C (107.6°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

April and December, with an average relative humidity of 87%, are the most humid months in Muara Bulian.

Rainfall

In December, the rain falls for 25.6 days. Throughout December, 158mm (6.22") of precipitation is accumulated. In Muara Bulian, during the entire year, the rain falls for 286 days and collects up to 1383mm (54.45") of precipitation.

Daylight

The month with the longest days in Muara Bulian is December, with an average of 12h and 12min of daylight.
On the first day of the month, sunrise is at 05:49 and sunset at 18:02. On the last day of December, sunrise is at 06:03 and sunset at 18:16 WIB.

Sunshine

In December, the average sunshine is 7.1h.

UV index

The months with the lowest UV index in Muara Bulian, Indonesia, are January, February and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a regular UV index of 6 translates into these guidelines:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.