December weather forecast
Lim Chu Kang, Singapore

December marks the apex of the climatic year in Lim Chu Kang, Singapore, reporting 170mm (6.69") of rainfall, the highest throughout the year. Atmospheric pressure remains steady, stabilizing the weather despite a small dip in temperatures and daylight hours. Typical of the year's end, clouds often dominate the sky, making clear days somewhat rare. Amid this rain-stricken month, a healthy number of sunshine hours ensure that the city doesn't miss its dose of warmth. December embodies the essence of Lim Chu Kang’s climate - continuous rainfall interspersed with patches of golden sunlight.

Temperature

The transition from November to December brings an average high-temperature of a still tropical 30.4°C (86.7°F), barely different from November's 31.1°C (88°F). Lim Chu Kang experiences a nighttime temperature average of 24.6°C (76.3°F) during December.

Heat index

For December, the heat index is estimated at a scorching 40°C (104°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially vital to children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. 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. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

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

Rainfall

December is the month with the most rainfall. Rain falls for 27.7 days and accumulates 170mm (6.69") 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 December, sunrise is at 06:52 and sunset at 18:55. On the last day of the month, sunrise is at 07:06 and sunset at 19:09 +08.

Sunshine

The month with the least sunshine is December, with an average of 7h of sunshine.

UV index

With an average maximum UV index of 6, December is the month with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: An average UV index of 6 in December transforms into this advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.