December weather forecast
Batu Berendam, Malaysia

Batu Berendam in December wraps up the year with weather somewhat similar to November. Rainfall still remains high, although slightly less than November, measuring about 133mm (5.24"), influencing the number of rainy days, approximately 28 days. Humidity increases further to 81%, making it one of the most humid months of the year. Contrary to the increment in humidity, sunshine hours decline to 7.7 hours daily, and daylight likewise reduces to 12 hours. Despite these changes, wind speeds up to 9.3km/h (5.8mph) and pressure levels of 1009.4mb adhere to the year's weather pattern.

Temperature

The average high-temperature is a still tropical 30.1°C (86.2°F) in December, hardly different from the 30.3°C (86.5°F) recorded in November. Batu Berendam's average low-temperature in the month of December is recorded at a moderately hot 24.5°C (76.1°F).

Heat index

December's average heat index is computed to be a sweltering 38°C (100.4°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
It is important to note that the heat index values are for shaded areas and light wind scenarios. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. 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. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. 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. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The most humid month is December, with an average relative humidity of 81%.

Rainfall

In Batu Berendam, in December, it is raining for 28.5 days, with typically 133mm (5.24") of accumulated precipitation. In Batu Berendam, during the entire year, the rain falls for 299.5 days and collects up to 1046mm (41.18") of precipitation.

Daylight

The month with the shortest days is December, with an average of 12h and 0min of daylight.
On the first day of the month, sunrise is at 7:00 am and sunset at 7:00 pm. On the last day of December, in Batu Berendam, sunrise is at 7:14 am and sunset at 7:13 pm +08.

Sunshine

With an average of 7.7h of sunshine, December has the least sunshine of the year.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 7 in December transforms into this advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.