Singapore will experience more thundery showers in the first half of April compared with the preceding fortnight, said the Meteorological Service Singapore (MSS).
The wetter weather over the next two weeks was predicted by MSS in a weather advisory released on Wednesday (1 April).
Source: Jeyakumaran Mayooresan on Unsplash
According to MSS, the thundery showers should fall on most afternoons over parts of Singapore.
On a few of these days, they may extend into the evening.
Additionally, widespread thundery showers and gusty winds could occur on one or two mornings during the period.
They will be brought about by Sumatra squalls — a weather phenomenon caused by the temperature difference between land and sea.
Source: zhang kaiyv on Unsplash
The total rainfall for the first half of the month is thus forecast to be “near average” over most parts of the island.
The Northeast Monsoon, which has been prevailing since December 2025, is expected to gradually weaken and end.
It will be replaced by inter-monsoon conditions, which will set in during the first week of April.
That means the prevailing winds will be light and variable in direction, with higher lightning activity.
The inter-monsoon period typically lasts until May, MSS said.
Temperature-wise, most days will record a daily maximum of 33°C to 35°C.
This is despite the higher incidence of showers forecast in the coming two weeks.
On a few days, the daily maximum temperatures may exceed 35°C as a result of less cloud coverage.
Source: Jeremy Kwok on Unsplash.
Over the second half of March, parts of Singapore experienced thundery showers of short duration on a few afternoons.
However, there were also “several fair days” during the period.
Many areas thus registered “well below-average rainfall”.
Source: Meteorological Service Singapore
On 17 March and 18 March, the southern and western parts of the island were subjected to localised thundery showers in the afternoon.
The highest rainfall for the fortnight was 58.4mm, recorded at Tuas South on 17 March and Lim Chu Kang on 18 March.
MSS described the weather in the second half of March as “warm”, citing the daily maximum temperature, which was above 34°C on most days.
The highest daily maximum temperature was 35.4°C, recorded in Sembawang on 30 March.
Also read: S’pore experienced warmest June & Nov but wettest March in 2025 as extreme weather prevailed
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Featured image adapted from Jeyakumaran Mayooresan on Unsplash.