The Meteorological Service Singapore (MSS) issued a weather advisory on Tuesday (1 Jul), warning residents to prepare for continued warm and humid conditions despite regular rainfall expected across the island.
Several nights over the next two weeks will remain warm with temperatures staying above 28°C. Daily maximum temperatures will range between 33°C and 34°C on most days, with some days potentially exceeding 34°C slightly.
Thundery Showers and Sumatra Squalls to Bring Relief Despite Hot Weather
Thundery showers will occur over parts of Singapore on most days during the first half of July. These localised downpours will be short in duration and typically happen in the late morning and afternoon hours.
Sumatra squalls will bring widespread thundery showers and gusty winds on several days during pre-dawn hours and morning. This weather phenomenon occurs due to temperature differences between land and sea.
The total rainfall for the first fortnight of July is forecast to be near average over most parts of Singapore. Winds during this period will blow mainly from the southeast or southwest directions.
The current weather pattern stems from the prevailing Southwest Monsoon, which began over the surrounding region in early June. This monsoon system will persist over the next two weeks and typically lasts until September. The Southwest Monsoon is generally drier compared to other times of the year.
June 2025 Records Show Below-Average Rainfall and High Temperatures
The second half of June saw localised short-duration thundery showers fall over parts of Singapore on several days. However, most areas registered below-average rainfall during this period.
Jurong West recorded the driest conditions with approximately 69% below-average rainfall. In contrast, the Admiralty area experienced the wettest conditions with about 63% above-average rainfall.
Singapore experienced moderate to heavy thundery showers over many areas in the early afternoon of 28 Jun. Woodlands recorded the highest daily rainfall of 69.3mm on that day during the two-week period.
Daily maximum temperatures ranged between 32°C and 34°C on most days during the second half of June. Several warm nights occurred, particularly in Singapore’s eastern, southern, and western regions, where minimum temperatures remained above 28°C.
Paya Lebar recorded the highest daily maximum temperature of 35.3°C on 22 Jun, marking the peak temperature for the period.
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