December weather forecast
Sawangan Baru, Indonesia

The first month of the summer, December, is also a hot month in Sawangan Baru, Indonesia, with an average temperature fluctuating between 30.5°C (86.9°F) and 24.9°C (76.8°F).

Temperature

A minimal variation is noted in Sawangan Baru's average high-temperature at the onset of December, reaching a still tropical 30.5°C (86.9°F) from November's 31.4°C (88.5°F). Sawangan Baru, in December, witnesses an average low-temperature of 24.9°C (76.8°F).

Heat index

December's average heat index is appraised at a torrid 37°C (98.6°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. 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. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In Sawangan Baru, the average relative humidity in December is 73%.

Rainfall

In Sawangan Baru, during December, the rain falls for 27.2 days and regularly aggregates up to 166mm (6.54") of precipitation. Throughout the year, there are 288.9 rainfall days, and 1568mm (61.73") of precipitation is accumulated.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 05:27 and sunset at 17:56. On the last day of the month, sunrise is at 05:41 and sunset at 18:10 WIB.

Sunshine

In Sawangan Baru, the average sunshine in December is 9h.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index in Sawangan Baru. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 7 in December translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.