December weather forecast
Samarinda, Indonesia

December ushers Samarinda's weather towards a year-end standstill, with a temperature range between 24.1°C (75.4°F) and 31.4°C (88.5°F). This month, while being a bit cooler, aligns seamlessly with the pattern of the previous months. The city records the highest rainfall of the year, reinforcing the predominant tropical rainforest climate. Despite minor transitions in the wind speed and maximum gust speed, the overall conditions retain the familiar climate continuity. December's weather in Samarinda fulfills the year-round tropical forecast.

Temperature

The arrival of December in Samarinda is marked by an average high-temperature of a still tropical 31.4°C (88.5°F), bearing a close resemblance to November. Samarinda's temperature lowers to a mean of 24.1°C (75.4°F) during the nights in December.

Heat index

December's average heat index is estimated at an extremely hot 43°C (109.4°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.
Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

January, April, June and December, with an average relative humidity of 83%, are the most humid months.

Rainfall

The month with the most rainfall in Samarinda is December, when the rain falls for 29.1 days and typically aggregates up to 146mm (5.75") of precipitation.

Daylight

December has the longest days of the year, with an average of 12h and 12min of daylight.
On the first day of December, sunrise is at 05:56 and sunset at 18:04. On the last day of the month, sunrise is at 06:09 and sunset at 18:19 WITA.

Sunshine

In December, the average sunshine in Samarinda is 8.2h.

UV index

January, February, April through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the maximum UV index of 7 translates into these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.