December weather forecast
Jatimakmur, Indonesia

December, the first month of the summer in Jatimakmur, is still a tropical month, with an average temperature fluctuating between 26°C (78.8°F) and 30.6°C (87.1°F).

Temperature

The advent of December brings an average high-temperature of a still hot 30.6°C (87.1°F), exhibiting minor difference from the previous month. Jatimakmur registers a steady nighttime temperature averaging a warm 26°C (78.8°F) throughout December.

Heat index

December's mean heat index is calculated to be a torrid 37°C (98.6°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In December, the average relative humidity is 71%.

Rainfall

In Jatimakmur, in December, it is raining for 23.9 days, with typically 123mm (4.84") of accumulated precipitation. In Jatimakmur, during the entire year, the rain falls for 252 days and collects up to 1150mm (45.28") of precipitation.

Daylight

December has the longest days of the year in Jatimakmur, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:27 and sunset at 17:55. On the last day of December, in Jatimakmur, sunrise is at 05:40 and sunset at 18:09 WIB.

Sunshine

In December, the average sunshine in Jatimakmur is 9.3h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Jatimakmur. The months with the lowest UV index in Jatimakmur are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 7 during December translates into the following guidance:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.