Singapore
Singapore
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Singapore, Singapore

The colorful night skyline of Singapore city in Singapore, a beautiful view of the skyscrapers against the bright sky
The colorful night skyline of Singapore city in Singapore, a beautiful view of the skyscrapers against the bright sky
December is the wettest month of the year as it withstands the worst of the northeast monsoon and rain accumulates up to 317.5mm (12.5") in the space of 18 rainy days. It is unbearable for visitors with the highest humidity of the year at 87% and the average temperatures in the 23.9°C (75°F) to 30°C (86°F) range.
The sun peeks out of the clouds for a daily 4.5 hours, but exercise caution as the equatorial sun often has a dangerous ultraviolet index of 12.
Keep an eye on the weather for typhoons in December as it sometimes hampers vacation plans. Bring rain protection gear while on Orchard Street, which transforms into a wonderland to enjoy the celebrations of Christmas on this Great Street. When the weather permits, do not miss the Supertree Grove, a landmark in the popular Gardens by the Bay with 18 supertrees to support the skywalk that displays spectacular views of the gardens and Marina Bay.

What is the coldest month in Singapore?

With an average high-temperature of 30°C (86°F) and an average low-temperature of 23.5°C (74.3°F), December is the coldest month.

What is the temperature in December in Singapore?

In December, in Singapore, Singapore, the average high-temperature is 30°C (86°F), and the average low-temperature is 23.5°C (74.3°F). In December, the average heat index (a.k.a. 'feels like', 'apparent temperature'), that combines relative humidity and air temperature, is estimated at 39.7°C (103.5°F).

What is the most humid month in Singapore?

With an average relative humidity of 86.9%, December is the most humid month in Singapore, Singapore.

What is the average humidity in December in Singapore?

The average relative humidity in December in Singapore, Singapore, is 86.9%.

How much does it rain in Singapore in December?

In Singapore, during December, the rain falls for 19 days and regularly aggregates up to 287.4mm (11.3") of precipitation.

What is the rainiest month in Singapore?

The month with the most rainfall in Singapore is December when the rain falls for 19 days and typically aggregates up to 287.4mm (11.3") of precipitation.

What is the water temperature in December in Singapore?

In Singapore, the average seawater temperature in December is 29°C (84.2°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the month with the shortest days in Singapore?

December has the shortest days of the year in Singapore, Singapore, with an average of 12h of daylight.

How many hours of daylight does Singapore have in December?

The average length of the day in December is 12h.

What is the month with the least sunshine in Singapore?

Months with the least sunshine in Singapore, Singapore, are November and December, with an average of 4.3h of sunshine.

How long on average sun shines in December in Singapore?

The average sunshine in December in Singapore, Singapore, is 4.3h.

When is the highest UV index in Singapore?

January through May, August through December, with an average maximum UV index of 12, are months with the highest UV index.

How high is the UV index in December in Singapore?

In December, the average daily maximum UV index in Singapore, Singapore, is 12. A UV Index value of 11, and more, symbolizes an ultimate hazard to health from the exposure to the Sun's UV radiation.
Average temperature in December - Singapore, Singapore
  • Average high temperature in December: 30°C

The warmest month (with the highest average high temperature) is April (31.7°C).
The month with the lowest average high temperature is December (30°C).

  • Average low temperature in December: 23.5°C

Months with the highest average low temperature are May and June (24.8°C).
The coldest month (with the lowest average low temperature) is January (23.3°C).

Average humidity in December - Singapore, Singapore
  • Average humidity in December: 86.9%

The month with the highest relative humidity is December (86.9%).
Months with the lowest relative humidity are February and July (82.8%).

Average rainfall in December - Singapore, Singapore
  • Average rainfall in December: 287.4mm

The wettest month (with the highest rainfall) is December (287.4mm).
The driest month (with the lowest rainfall) is July (158.7mm).

Average rainfall days in December - Singapore, Singapore
  • Average rainfall days in December: 19 days

Months with the highest number of rainy days are November and December (19 days).
The month with the lowest number of rainy days is February (11 days).

Average sea temperature in December - Singapore, Singapore
  • Average sea temperature in December: 29°C

Best months for swimming (with the highest average sea temperature) are May and June (30.2°C).
The coldest month (with the lowest average sea temperature) is January (27.7°C).

Average daylight in December / Average sunshine in December - Singapore, Singapore
  • Average daylight in December: 12h

Months with the longest days are May, June, July and August (Average daylight: 12.2h).
The month with shortest days is December (Average daylight: 12h).

  • Average sunshine in December: 4.3h

The month with most sunshine is February (Average sunshine: 6.5h).
Months with least sunshine are November and December (Average sunshine: 4.3).

Average UV index in December - Singapore, Singapore
  • Average UV index in December: 12

Months with the highest UV index are January, February, March, April, May, August, September, October, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 11).