December weather forecastSeletar, Singapore

Weather in December

December sets the stage for the winter charm, but this does not translate into colder days in Seletar, Singapore. This month sees the highest rainfall of the year with 102mm (4.02"), conjuring a unique blend of tropical showers and equatorial warmth. Despite the rains, the temperature remains steady, ensuring a warm winter month. The season's merriment isn't dimmed as the daylight hours remain constant, making December festivities more exciting. Mild winds and varying visibility might influence outdoor plans, but the city's indoor activities remain as charming and inviting as ever.

Temperature

The advent of December in Seletar presents an average high-temperature of a still tropical 30.1°C (86.2°F), maintaining a close correlation with the preceding month. The nighttime temperature, during December, averages of 24.9°C (76.8°F).

Heat index

In December, the average heat index is appraised at a sweltering 39°C (102.2°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

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

Rainfall

December is the month with the most rainfall in Seletar. Rain falls for 25 days and accumulates 102mm (4.02") 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 19:08 +08.

Sunshine

With an average of 6.9h of sunshine, December has the least sunshine of the year.

UV index

With an average maximum UV index of 6, December is the month with the lowest UV index in Seletar. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 6 in December leads to these recommendations:
Shield from overexposure. Defense against sun-related harm is required. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.