Forecast

WEATHER OUTLOOK (16 – 31 JANUARY 2026)

1    The prevailing Northeast Monsoon conditions are expected to continue into the second fortnight of January 2026, with the low-level winds over Singapore and the surrounding region blowing mostly from the northeast or northwest.

2    Moderate to heavy thundery showers are expected over most parts of the island in the afternoon and evening on the first few days of the second fortnight of January 2026. Thereafter, conditions should turn relatively drier, though brief localised thundery showers may still occur on several afternoons. A few days may be dry and occasionally windy. Overall, rainfall for the second fortnight of January 2026 is forecast to be below average across most parts of the island.

3    For the rest of January 2026, the daily maximum temperatures are likely to range between 32 degrees Celsius and 33 degrees Celsius on most days and may reach around 34 degrees Celsius on a few days.

4    For updates of the daily weather forecast, please visit the MSS website (https://www.weather.gov.sg), NEA website (www.nea.gov.sg), or download the myENV app.

REVIEW OF THE PAST TWO WEEKS (1 – 15 January 2026)

5    Northeast Monsoon conditions prevailed over Singapore and the surrounding region in the first half of January 2026. During this period, the low-level winds blew from the northwest or northeast.

6    The Northeast Monsoon brought relatively dry and windy conditions to Singapore and the surrounding region on most days in the first two weeks of 2026. Short-duration thundery showers fell over parts of the island in the afternoon on some days. On 7 January 2026, heavy thundery showers affected the southern, western and central parts of Singapore in the afternoon and evening. The daily total rainfall of 81.6 mm recorded at Jurong Island that day was the highest rainfall recorded for the first half of January 2026.

7    The first half of January 2026 was relatively cool with daily maximum temperatures below 33 degrees Celsius on all days. The highest daily maximum temperature of 32.7 degree Celsius was recorded at Tuas South, Choa Chu Kang, and Jurong Island on 1, 5, and 13 January 2026 respectively.

8    Most parts of the island recorded well below-average rainfall in the first half of January 2026. The area around Ang Mo Kio registered rainfall of 93 per cent below-average, and the area around Jurong Pier registered rainfall of 78 per cent above-average.

CLIMATE STATION STATISTICS

Long-term Statistics for January
(Climatological reference period: 1991 – 2020)

Historical Extremes for January
(Rainfall since 1869 and temperature since 1929)