yearsofweather

Singapore in December:
hot, rain every other day

Singapore · Records from 2006 to 2025. Not a forecast.

Mean high31°Hottest day 34.1° (2016)
Mean low24°Coldest night 22.7° (2010)
Rain days17 days9-25 by year
Rainfall325mmDaylight 12.0 → 12.0 h
Singapore's 12 months iBest: February
Trip types Beach Poorfrequent rainSightseeing on foot Poorhot, frequent rain and muggy
Humidity86%31 muggy days
Clear days0 days27 overcast days
Mean wind10 km/hRarely windy
Sea temperature29.1°28.7-29.4° by year (last 6)
Sunrise / sunset (15th)06:59 / 19:01Daylight 12.0 → 12.0 h

Singapore in December

The month with the most rainy days. A monsoon surge can bring several grey days of steady rain. The Orchard Road lights stay on into the new year. A light rain jacket is essential.

Days averaged 31°C and nights 24°C. Midday was for air conditioning, a cold drink or a long lunch out of the sun. Rain was a regular part of the month, showing up on 17 days on average. The average is 17, but individual years ran from 9 (2021) to 25 (2012).

21 days past 30°C made it a month for early starts and a long lunch indoors. Wet days did not mess around: about 19 mm each, the kind of rain that drives you into a doorway.

Date by date i

‹ November December 2026 January ›
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
1-5rain on 64% of days31° 24°
6-12rain on 54% of days31° 24°
13-19rain on 69% of days30° 24°
20-26rain on 49% of days31° 24°
27-31rain on 38% of days30° 24°

0-5/206-8/209-11/2012-20/20

1-5rain on 64% of days31° 24°
6-12rain on 54% of days31° 24°
13-19rain on 69% of days30° 24°
20-26rain on 49% of days31° 24°
27-31rain on 38% of days30° 24°
Tap another date to change

20068mm
200766mm
200819mm
20096mm
20105mm
2011none
201210mm
2013none
20142mm
2015none
2016none
20178mm
201819mm
201913mm
20204mm
2021none
202216mm
20235mm
20241mm
202561mm
Holidays in December (2026)
  • December 25 Christmas Day

1 Local public holiday or break (busier, pricier)

Your trip dates, the past 20 years

Trip dates ~

You can also click two dates on the axis. Hover a cell to see that day's rain.
Trip rain days Month rain days
2006
6 d 22 d
2007
7 d 17 d
2008
3 d 15 d
2009
1 d 20 d
2010
1 d 21 d
2011
5 d 15 d
2012
4 d 25 d
2013
3 d 12 d
2014
3 d 23 d
2015
6 d 15 d
2016
3 d 14 d
2017
2 d 15 d
2018
7 d 19 d
2019
5 d 16 d
2020
1 d 14 d
2021
2 d 9 d
2022
5 d 16 d
2023
7 d 25 d
2024
4 d 15 d
2025
1 d 14 d
Years with rain
Tap a date to start, tap another to end. Each cell is that date in one year.
'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
of 20
14
14
13
12
11
11
7
13
10
9
13
13
14
11
15
14
14
15
13
9
7
11
11
11
12
7
6
9
7
8
8
Rain days on trip
67311543363275125741

No rain1-9 mm10 mm or more Dates outside your trip are dimmed.

One row per year, one cell per day. 2021 had 9 rain days, 2012 had 25.

Singapore through the year

MonthHighLowRain daysRainfallSea
January 31°24°11 days278mm 28°
FebruaryGood 32°25°6 days90mm 28°
March 32°25°10 days191mm 29°
April 32°25°12 days205mm 30°
May 32°26°13 days189mm 31°
June 32°26°12 days166mm 31°
July 32°26°10 days145mm 30°
August 31°25°12 days191mm 30°
September 32°25°10 days148mm 30°
October 32°25°12 days190mm 30°
November 31°25°16 days307mm 30°
December 31°24°17 days325mm 29°

Common questions

Does it rain a lot in Singapore in December?

Over the past 20 years December averaged 17 rain days (1 mm or more) out of 31. Individual years ran from 9 in the driest to 25 in the wettest.

What should I wear in Singapore in December?

Days averaged 31°C and nights 24°C. Pack an umbrella, sandals that can get wet, T-shirts, sunscreen plus a hat, a swimsuit, and insect repellent.

Can you swim in Singapore in December?

Sea surface temperature averaged 29.1°C in December, warm enough to stay in for a long swim. Year to year it ranged 28.7-29.4°C. Check local flags for waves and jellyfish on the day.

Is December a good time to visit Singapore?

On warmth and rain days alone, Singapore's easiest month was February. December ranked 10 of 12.

Is Singapore humid in December?

Mean relative humidity was 86%, with about 31 muggy days (dew point of 20°C or more) in the month.