December weather forecast
Penurin, Malaysia

The first month of the winter, December, is still a hot month in Penurin, Malaysia, with an average temperature varying between 22.3°C (72.1°F) and 30°C (86°F).

Temperature

December's onset brings an average high-temperature of a still hot 30°C (86°F), showing a minute difference from November's 30.4°C (86.7°F). An average low-temperature of 22.3°C (72.1°F) is noted during the nights in December in Penurin, Malaysia.

Heat index

December's mean heat index is evaluated at an extremely hot 40°C (104°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out 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. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

The average relative humidity in December is 89%.

Rainfall

The month with the most rainfall is December, when the rain falls for 29.6 days and typically aggregates up to 245mm (9.65") of precipitation.

Daylight

December has the shortest days of the year, with an average of 12h and 0min of daylight.
On the first day of December, sunrise is at 6:21 am and sunset at 6:24 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 6:38 pm +08.

Sunshine

The average sunshine in December is 5.3h.

UV index

The months with the lowest UV index are January through March, May, June, September through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 in December converts into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.