December weather forecast
Long Seridan, Malaysia

The first month of the winter, December, is still a warm month in Long Seridan, Malaysia, with an average temperature fluctuating between 19.8°C (67.6°F) and 29.1°C (84.4°F).

Temperature

Welcoming December, Long Seridan notes an average high-temperature of a still warm 29.1°C (84.4°F), nearly consistent with November's 29.5°C (85.1°F). In Long Seridan, the average nighttime temperature during December is a refreshing 19.8°C (67.6°F).

Heat index

For most parts of December, the heat index is computed to be a fiery hot 37°C (98.6°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

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

Rainfall

In December, the rain falls for 30 days. Throughout December, 263mm (10.35") of precipitation is accumulated. Throughout the year, in Long Seridan, there are 331.4 rainfall days, and 2641mm (103.98") of precipitation is accumulated.

Daylight

The month with the shortest days in Long Seridan is December, with an average of 11h and 54min of daylight.
On the first day of December, sunrise is at 6:11 am and sunset at 6:06 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 6:19 pm +08.

Sunshine

In Long Seridan, the average sunshine in December is 6.6h.

UV index

The months with the highest UV index 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 hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 6 during December translates into these guidelines:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.