December weather forecast
Serdang Lama, Malaysia

The first month of the winter, December, is still a tropical month in Serdang Lama, Malaysia, with an average temperature fluctuating between 30.5°C (86.9°F) and 23.2°C (73.8°F).

Temperature

The month of December, characterized by an average high of 30.5°C (86.9°F) and a low of 23.2°C (73.8°F), is recognized as the coldest.

Heat index

The heat index value during December is estimated at a scorching 40°C (104°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

November and December, with an average relative humidity of 82%, are the most humid months in Serdang Lama.

Rainfall

In Serdang Lama, in December, during 25.3 rainfall days, 87mm (3.43") of precipitation is typically accumulated. In Serdang Lama, during the entire year, the rain falls for 300.2 days and collects up to 868mm (34.17") of precipitation.

Daylight

The month with the shortest days in Serdang Lama is December, with an average of 12h and 0min of daylight.
On the first day of the month, sunrise is at 7:03 am and sunset at 7:01 pm. On the last day of December, in Serdang Lama, sunrise is at 7:17 am and sunset at 7:14 pm +08.

Sunshine

November and December, with an average of 7.2h of sunshine, are months with the least sunshine in Serdang Lama, Malaysia.

UV index

The months with the highest UV index in Serdang Lama are February through October and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A typical high UV index of 7 in December suggests the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.