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The past couple of weeks were noticeably warm, with thundery showers scattered throughout.

According to the Meteorological Service Singapore (MSS), the warm and humid weather is expected to continue in first half of June 2021.

Start of the Southwest Monsoon season

In a media release on Tuesday (Jun. 1), MSS announced that during the first half of June, light and variable winds are expected to get stronger and blow over Singapore and the surrounding regions from the southeast and southwest.

This signals the end of the inter-monsoon period, and the start of the Southwest Monsoon season, which typically extends into September.

The Southwest Monsoon season is generally a drier season compared to other times of the year.

A monsoon rain band is forecast to lie over the northern Southeast Asia region. This is expected to bring generally dry, warm, and humid conditions over Singapore and the surrounding region on some days.

Localised short-duration rain showers, at times with thunder, can be expected over a few parts of the island in the late morning and early afternoon on some days.

On one or two days, island-wide thundery showers with occasional gusty winds can be expected in the morning, as a result of  Sumatra squalls moving from the Strait of Malacca to the South China Sea.

The overall rainfall for the first half of June 2021 is likely to be below normal over most parts of Singapore.

Maximum daily temperature could reach 35 degrees Celsius

During the first two weeks of June, the daily temperature on most days is forecast to range between 25 and 34 degrees Celsius, possibly reaching a maximum of around 35 degrees Celsius on a few days, particularly when there are few clouds in the sky.

Nights are expected to also be warm and humid. These typically occur because prevailing winds blow from the southeast and bring warm, humid air from the sea over the land.

Night-time minimum temperatures are expected to be up to 28 degrees Celsius on some days.

Top photo by Jane Zhang.