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Wet weather expected in first half of December with prevailing Northeast Monsoon conditions

Daily maximum temperatures are expected to peak at 34 degrees Celsius on a few days despite thundery showers on most days.

Liam Willett

Aspiring cat dad.

Published: 2 December 2022, 11:41 AM

The current wet weather is likely to continue with thundery showers expected on most days over the next fortnight, said the Meteorological Service Singapore (MSS) in a media release on Thursday (Dec 1).

The MSS expects Northeast Monsoon conditions to persist, with winds blowing mainly from the northwest or northeast.

Short-duration moderate to heavy thundery showers in the afternoon are expected over parts of Singapore on most days. The showers may extend into the evening on occasion.

In addition, MSS forecasts the passage of Sumatra squalls in the early part of the fortnight bringing widespread thundery showers with occasional gusty winds in the morning on a few days.

This is due to low-pressure systems developing in the region bringing a temporary shift in winds blowing from the southwest or west.

The total rainfall for the first fortnight of December 2022 is forecast to be near average over most parts of Singapore. 

The MSS stated that climatologically, December is the wettest month of the year. 

Daily temperatures for the first half of December are forecast to range between 24 and 33 degrees Celsius on most days. Daily maximum temperatures are expected to peak at 34 degrees Celsius on a few days despite thundery showers expected on most days.

In the second half of November, winds gradually strengthened and blew mostly from the northeast or northwest, signalling the start of the Northeast Monsoon season.

MSS said that there was wet weather over Singapore on most days in November, and the development of several Sumatra squalls bringing widespread showers and gusty winds between the early and pre-dawn hours on many days. Thundery showers also fell over the island on several afternoons and nights.

Rainfall was above average in November in most parts of Singapore, except the southern part of the island.

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