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 (8.43"). 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

Miri's weather in December, with an average high-temperature of a still hot 30.2°C (86.4°F), subtly shifts from November's 30.7°C (87.3°F). Miri logs an average low-temperature of 25.4°C (77.7°F) during the nights of December, subtly lower than its daytime highs.

Heat index

Throughout December, the heat index is computed to be a fiery hot 39°C (102.2°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. 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. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In December, the average relative humidity in Miri 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 (8.43") of precipitation.

Sea temperature

In Miri, the average seawater temperature in December is 29.1°C (84.4°F).
Note: Swimming, diving, and other activities in water temperatures between 25°C (77°F) and 29°C (84.2°F) are thought to be quite enjoyable and satisfying for extended periods, with no discomfort.

Daylight

December has the shortest days of the year in Miri, with an average of 11h and 54min of daylight.
On the first day of the month, sunrise is at 6:16 am and sunset at 6:09 pm. On the last day of December, sunrise is at 6:30 am and sunset at 6:23 pm +08.

Sunshine

In December, the average sunshine is 7.8h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Miri are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 7 in December translates into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Alert! The Sun's UV rays are heightened by the reflection of sand and water.