December weather forecast
Miri, Malaysia

Finally, December proves to be the climax of the wet season, with Miri, Malaysia, receiving the highest rainfall annually at 214mm. Decreasing temperatures result in a slightly cooler ambiance than the scorching preceding months. Most days witness substantial cloud cover, reducing sunshine hours and defining the city's weather. Increased rainfall days and reduced visibility become synonymous with December. However, the city’s temperature remains well within the comfortable range, making it a year-long destination.

Temperature

During December, Miri records an average high-temperature of a still hot 30.2°C, marking a slight divergence from November's 30.7°C. In Miri, December nights maintain a consistent temperature, with an average low of 25.4°C.

Heat index

December's heat index is estimated at a torrid 39°C. Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. 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 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In December, the average relative humidity is 81%.

Rainfall

The month with the most rainfall is December, when the rain falls for 27.3 days and typically aggregates up to 214mm of precipitation.

Sea temperature

In Miri, in December, the average water temperature is 29.1°C.
Note: Water temperature between 25°C and 29°C is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

With an average of 11h and 54min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:16 am and sunset at 6:09 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 6:22 pm +08.

Sunshine

In December, the average sunshine in Miri, Malaysia, is 7.8h.

UV index

The months with the highest UV index 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. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 7 in December, converts into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Caution! The Sun's UV rays become stronger due to reflections from water and sand.