Singapore, 16 December 2024 – The prevailing Northeast Monsoon conditions are expected to continue for the rest of December 2024, with winds blowing mainly from the northwest or northeast.
2 In the first week of the coming fortnight, thundery showers are expected over parts of the island in the afternoon on several days. The showers may be widespread and extend into the evening on a few days. The last week of 2024 is forecast to be generally drier. A brief strengthening of northerly winds could bring windy conditions with brief periods of passing showers on some days in the last week of 2024. Overall, the total rainfall for the second fortnight of December 2024 is forecast to be below average over most parts of the island.
3 In the coming fortnight, the daily maximum temperatures are likely to range between 32 degrees Celsius and 34 degrees Celsius on most days and slightly exceed 34 degrees Celsius in the afternoon on a few days.
4 For updates of the daily weather forecast, please visit the MSS website (www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.
REVIEW OF THE PAST TWO WEEKS (1 – 15 DECEMBER 2024)
5 Northeast Monsoon conditions prevailed over Singapore and the surrounding region in the first fortnight of December 2024. During the period, the low-level winds blew mainly from the northwest or northeast on most days.
6 Thundery showers fell over parts of the island in the afternoon on several days in the first fortnight of December 2024. The showers extended into the evening on a few occasions. The heavy thundery showers that fell over many areas of the island on 3 December 2024 resulted in a daily total rainfall of 109.6mm recorded at Bedok. This was the highest total rainfall in a day for the first fortnight of December 2024.
7 There were several days in the first fortnight of December 2024 when the daily maximum temperature reached 34 degrees Celsius or more. The highest daily maximum temperature of 36.2 degree Celsius was recorded at Paya Lebar on 7 December 2024. This has surpassed the record highest daily temperature of 35.9 degree Celsius (at Seletar on 6 December 2016) for December.
8 In the first fortnight of December 2024, most parts of Singapore recorded below average rainfall. The areas around Ulu Pandan registered rainfall of about 82 per cent below average and the areas around Tai Seng registered rainfall of about 8 per cent above average.
CLIMATE STATION STATISTICS
Long-term Statistics for December
(Climatological reference period: 1991 – 2020)
| Average daily maximum temperature: | 30.5 °C |
| Average daily minimum temperature: | 24.3 °C |
| Average monthly temperature: | 26.8 °C |
| Average rainfall: | 331.9 mm |
| Average number of rain days: | 19 |
Historical Extremes for December
(Rainfall since 1869 and temperature since 1929)
| Highest monthly mean daily maximum temperature: | 31.6 °C (2016, 2018) |
| Lowest monthly mean daily minimum temperature: | 21.9 °C (1933) |
| Highest monthly rainfall ever recorded: | 765.9 mm (2006) |
| Lowest monthly rainfall ever recorded: | 62.5 mm (1932) |