December weather forecast
Tarakan, Indonesia

December ushers in the wet transition with continuous and sustained precipitation, hosting the second highest rainfall level for the year at 253mm (9.96"). While these lively rains persist, the daylight hours are at their shortest, suggesting most of December to be overcast. Yet, sunshine isn't fully eclipsed, managing to maintain a steady appearance. The gentle winds offer a fresh ambiance against the humidity created by the heavy downpours. The momentum ebbs and flows between warmth, wind, and heavy rainfall, striking a balance in the climate.

Temperature

The advent of December in Tarakan reveals an average high-temperature of a still warm 29.8°C (85.6°F), showing minimal difference from the prior month. Tarakan's nocturnal December readings average at a still moderately hot 26.1°C (79°F), showing little variation from the daytime temperatures.

Heat index

The average heat index in December is computed to be a very hot 37°C (98.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are especially vital to children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The average relative humidity in December is 78%.

Rainfall

December is the month with the most rainfall in Tarakan. Rain falls for 29.5 days and accumulates 253mm (9.96") of precipitation.

Sea temperature

In December, the average sea temperature in Tarakan, Indonesia, is 29°C (84.2°F).
Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.

Daylight

The month with the shortest days in Tarakan is December, with an average of 11h and 54min of daylight.
On the first day of the month, sunrise is at 06:00 and sunset at 17:57. On the last day of December, sunrise is at 06:14 and sunset at 18:10 WITA.

Sunshine

With an average of 7.8h of sunshine, December has the least sunshine of the year in Tarakan, Indonesia.

UV index

The months with the highest UV index in Tarakan are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Tarakan. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 7 during December translates into the following guidance:
Guard oneself from overexposure. Defence against sun injury is vital. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat. Notice! Sand and water reflections contribute to a stronger UV exposure.