December weather forecast
Long Seniai, Malaysia

The first month of the winter, December, is also a moderately hot month in Long Seniai, Malaysia, with an average temperature ranging between min 19.8°C (67.6°F) and max 29.1°C (84.4°F).

Temperature

December reports an average high-temperature of a still warm 29.1°C (84.4°F), slightly varied from November's 29.5°C (85.1°F). Long Seniai, during December nights, observes an average temperature of 19.8°C (67.6°F).

Heat index

The average heat index in December is computed to be a sweltering 37°C (98.6°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The months with the highest humidity in Long Seniai are January, November and December, with an average relative humidity of 87%.

Rainfall

In Long Seniai, Malaysia, in December, it is raining for 30 days, with typically 263mm (10.35") of accumulated precipitation. Throughout the year, there are 331.4 rainfall days, and 2641mm (103.98") of precipitation is accumulated.

Daylight

With an average of 11h and 54min of daylight, December has the shortest days of the year in Long Seniai, Malaysia.
On the first day of December in Long Seniai, sunrise is at 6:11 am and sunset at 6:07 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 6:21 pm +08.

Sunshine

In December, the average sunshine is 6.6h.

UV index

The months with the highest UV index in Long Seniai are January, March through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 6 in December interprets into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.