Singapore is bracing for its third monsoon surge of the year, set to occur between March 19 to March 21, 2025. This weather phenomenon is expected to bring flash floods and a significant change to the nation’s climate. The surge, characterised by a strong flow of north-easterly winds from the South China Sea, will usher in cooler temperatures as low as 22°C and heavy rainfall across the region. Here’s what we know about the monsoon surge in Singapore:
Monsoon Surge Singapore March 2025
Residents can expect temperatures to dip as low as 22°C, which may be a welcoming relief to some from the sweltering heat in the first half of March. In fact, maximum daily temperatures ranged between 28.2°C and 35.1°C earlier this month in Singapore.
Unfortunately, the cooler conditions will be accompanied by moderate to heavy rain showers, potentially leading to flash floods, as a result of intense rainfall. Previously, we’ve seen that heavy downpours associated with monsoon surges this year have overwhelmed Singapore’s drainage systems. Therefore, Public Utilities Board (PUB) have warned residents to stay informed about potential flooding by subscribing to their Flood Alerts Telegram channel.
Certainly, staying alert on potential flash floods in Singapore will help the public plan daily activities and travel accordingly to minimize disruptions caused by the weather.
Singapore can expect a return to more typical weather patterns, for the rest of the month, after the monsoon surge passes on March 21, 2025. Daily temperatures are forecast to range from 24°C and 34°C, alongside short thundery showers in the afternoons of most days, as well as above-average rainfall across the island.
Why is it happening in Singapore?
Monsoon surges in Singapore are part of the larger regional weather patterns influenced by wind shifts and moisture flows from the South China Sea. These weather events can bring a large amount of rainfall and cooler temperatures. Meanwhile, the occurrence of this third surge in March 2025 highlights the dynamic nature of the climate in Singapore.
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