Singapore is experiencing its third monsoon surge of 2025, bringing widespread rainfall, strong winds, and a drop in temperatures. The National Environment Agency (NEA) has reported that from March 19 to 21, temperatures may fall to as low as 22°C, accompanied by moderate to heavy showers across the island. This unusual late-season surge is expected to impact daily activities, travel, and businesses, prompting authorities to issue safety advisories.
Monsoon Surge Brings Heavy Rainfall & Strong Winds
A monsoon surge occurs when cold air masses from Central Asia sweep southward over the South China Sea, gathering moisture and forming dense rain clouds. This results in prolonged rainfall, gusty winds, and significantly cooler temperatures in Singapore. Typically, such surges occur earlier in the northeast monsoon season (December to January), making this March event relatively uncommon.
During the monsoon surge, Singaporeans can expect continuous rain showers, stronger wind speeds, and occasional thunderstorms. In previous surges, some areas recorded over 255mm of rainfall within two days, exceeding the monthly average.
Impact on Daily Life & Safety Measures
- Flooding Risks – The heavy downpour may overwhelm drains and canals, leading to flash floods in low-lying areas. The Public Utilities Board (PUB) advises commuters to stay updated on flood risks via the myENV app and avoid walking through ankle-deep moving water.
- Business & Infrastructure Disruptions – The strong winds can pose risks to outdoor structures such as market stalls, construction sites, and temporary tents. Business owners are advised to secure outdoor fixtures and install flood barriers where necessary.
- Travel Precautions – Commuters should plan alternative routes, as heavy rainfall may lead to slower traffic and reduced visibility. Motorists are advised to avoid waterlogged roads and drive cautiously during storms.
Singapore’s Weather Outlook for March 2025
Following the monsoon surge, temperatures in Singapore are expected to range between 24°C and 34°C for the remainder of March. Short-duration thunderstorms will continue in the afternoons, contributing to above-average rainfall levels. Residents should remain prepared for sudden weather changes as the northeast monsoon season transitions to its final phase.
Conclusion
As Singapore experiences its third monsoon surge of the year, residents and businesses should stay vigilant about weather updates and safety measures. With the possibility of heavy rain, strong winds, and cooler temperatures, taking necessary precautions will help minimize disruptions and ensure public safety. Stay updated through NEA, PUB, and official government alerts to navigate this weather event effectively.
