December weather forecast
Batu, Malaysia

The first month of the winter, December, is also a hot month in Batu, Malaysia, with temperature in the range of an average high of 30.8°C (87.4°F) and an average low of 23.1°C (73.6°F).

Temperature

December, characterized by an average high temperature of 30.8°C (87.4°F) and a low temperature of 23.1°C (73.6°F), is generally the coldest month.

Heat index

The average heat index in December is appraised at an extremely hot 41°C (105.8°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The most humid month is December, with an average relative humidity of 82%.

Rainfall

In December, the rain falls for 25 days. Throughout December, 139mm (5.47") of precipitation is accumulated. Throughout the year, there are 299.4 rainfall days, and 1297mm (51.06") of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 11h and 54min of daylight.
On the first day of the month, sunrise is at 7:03 am and sunset at 7:00 pm. On the last day of December, sunrise is at 7:18 am and sunset at 7:14 pm +08.

Sunshine

December has the least sunshine of the year, with an average of 7.3h of sunshine.

UV index

The months with the highest UV index in Batu are January through October and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In December, an average UV index of 7 transforms into the following instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.