December weather forecast
Jemundo, Indonesia

December, the first month of the summer in Jemundo, is also a hot month, with temperature in the range of an average low of 26.3°C (79.3°F) and an average high of 31.2°C (88.2°F).

Temperature

The arrival of December brings an average high-temperature of a still hot 31.2°C (88.2°F), closely following the temperature pattern of November. Jemundo, during December nights, witnesses an average temperature marginally cooler than its daytime highs, at a warm 26.3°C (79.3°F).

Heat index

December's average heat index is evaluated at a sweltering 39°C (102.2°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. 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 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The average relative humidity in December in Jemundo is 74%.

Rainfall

In December, in Jemundo, the rain falls for 24.7 days. Throughout December, 102mm (4.02") of precipitation is accumulated. Throughout the year, in Jemundo, there are 187.8 rainfall days, and 839mm (33.03") of precipitation is accumulated.

Daylight

The month with the longest days in Jemundo is December, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:02 and sunset at 17:33. On the last day of December, sunrise is at 05:15 and sunset at 17:48 WIB.

Sunshine

In Jemundo, 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 in Jemundo. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 7 during December leads to these instructions:
Deter overexposure. Protecting against the sun's effects is essential. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.