Wet weather on most days in 1st half of Sept, with showers on several mornings

Wet weather in 1st half of Sept to result in above-average rainfall

Expect wet weather conditions in the first half of September, with showers on several mornings.

A Meteorological Service Singapore (MSS) weather advisory released on Monday (1 Sept) listed these predictions.

Wet weather on several mornings of first half of Sept

MSS also said to expect thundery showers to fall over parts of the island in the late morning and afternoon on some days over the next fortnight.

They will be of moderate to heavy strength, it added.

Also, widespread thundery showers and gusty winds could occur in the pre-dawn hours and morning on several days.

The Sumatra Squalls, a weather phenomenon caused by the temperature difference between land and sea, might bring about these showers.

Thus, the total rainfall for the next two weeks is likely to be above average over most parts of Singapore.

Southwest Monsoon conditions prevailing

The prevailing Southwest Monsoon is a contributing factor to these weather conditions.

The monsoon season set in over the surrounding region in early June and is likely to persist for the next two weeks.

This means that winds will blow mainly from the southeast or southwest.

The Southwest Monsoon is generally drier than at other times of the year and typically lasts until September, as previously stated by MSS.

Regarding the temperature, the daily maximum is likely to range between 32°C and 34°C on most days.

Half of S’pore got above-average rainfall during second half of Aug

Over the second half of August, Singapore experienced localised short-duration thundery showers on several days.

On a few days, however, thundery showers and gusty winds occurred in the pre-dawn and morning due to Sumatra squalls.

About half of Singapore experienced above-average rainfall, with that of the Clementi area about 128% above average.

However, the area around Changi was the driest, with rainfall about 40% below average.

In the early morning of 24 Aug, Singapore experienced widespread thundery showers and gusty winds due to the passage of a Sumatra squall.

That day, Ulu Pandan saw a daily total rainfall of 104.2mm — the highest rainfall recorded for the two weeks.

Maximum temperature of 34.7°C recorded in Ang Mo Kio

Most days in the last two weeks of August recorded a daily maximum temperature of between 32°C and 34°C, MSS said.

On 22 August, Ang Mo Kio recorded the highest daily maximum temperature for the period, at 34.7°C.

Also read: Short-duration thundery showers on most days in 2nd half of Aug, with near-average rainfall