Singapore, 2 January 2025 – The prevailing Northeast Monsoon conditions are expected to continue in the first fortnight of January 2025, with winds blowing mainly from the northwest or northeast.

2        Moderate to heavy thundery showers are expected over parts of the island in the afternoon on most days. The showers may extend into the night on a few days. In the last few days of the fortnight, a strengthening of high-pressure systems over the northern Asian continent may bring a surge of strong north-easterly winds (or monsoon surge[1]) over the South China Sea, and wetter conditions over Singapore and the surrounding region. The total rainfall for the first fortnight of January 2025 is forecast to be above average over most parts of the island.

3        The daily temperatures are likely to range between 24 degrees Celsius and 33 degrees Celsius on most days. Cooler conditions are expected in the last few days of the fortnight and the daily minimum temperatures could drop to 22 degrees Celsius.

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 (16 – 31 DECEMBER 2024)

5        Northeast Monsoon conditions prevailed over Singapore and the surrounding region in the second fortnight of December 2024. During the period, the low-level winds blew mainly from the north or northeast.

6        Thundery showers fell over parts of Singapore on most afternoons. The showers extended into the evening on a few days. On 29 December 2024, strong solar heating of land areas coupled with regional convergence of winds brought widespread heavy thundery showers over Singapore in the afternoon. The daily total rainfall of 136.2 mm recorded at Bukit Timah that day was the highest rainfall recorded for the second fortnight of December 2024.

 7        The daily maximum temperatures in the second fortnight of December 2024 were between 32 degrees Celsius and 34 degrees Celsius on most days. The highest daily maximum temperature of 35.4 degree Celsius was recorded at Clementi on 16 December 2024.

 8        About half of the island recorded above average rainfall in the second fortnight of December 2024. Tuas registered rainfall of about 40 per cent above average, and Pasir Ris registered rainfall of about 55 per cent below average.

[1] A monsoon surge refers to a strengthening of winds over the South China Sea, causing extensive rainclouds to form over our surrounding region. Read more at http://www.weather.gov.sg/learn_weather_systems/

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