Thundery showers expected in Singapore on most days in first half of April

SINGAPORE – Keep your umbrellas handy when you leave your house in the first two weeks of April as thundery showers are expected on most days over parts of Singapore.

Heavy showers are forecast for most afternoons, and may extend into the evenings on a few days, said the Meteorological Service Singapore on April 1.

The Sumatra squalls – an organised line of thunderstorms that typically develop over Sumatra island or the Strait of Malacca – may also bring widespread thundery showers and gusty winds on one or two mornings, said the weatherman.

Daily maximum temperatures in the first half of April are likely to range from 33 deg C to 35 deg C on most days, and may exceed 35 deg C on a few days when there is less cloud coverage.

Total rainfall for the period is expected to be near average over most parts of the island.

“The north-east monsoon conditions prevailing over the region since December 2025 are expected to gradually weaken and end, with inter-monsoon conditions setting in during the first week of April,” said the Met Service.

This inter-monsoon period, characterised by light and variable winds with higher lightning activity, usually lasts until May, it added.

The first half of April is expected to be wetter than the previous two weeks, which experienced light winds and short thundery showers across parts of the island on some afternoons.

On March 17 and March 18, some parts of southern and western Singapore experienced thundery afternoon showers.

Tuas South and Lim Chu Kang recorded a total of 58.4mm of rainfall on March 17 and March 18, respectively, which was the highest amount of rain for the second half of March.

Many areas across the island registered well below average rainfall during the period, with several warm days and daily maximum temperatures above 34 deg C recorded on most days.

Sembawang recorded the highest daily maximum temperature for the period, with the mercury hitting 35.4 deg C on March 30.