Less rain expected in second half of November in S'pore

The end of November rain.

Nixon Tan | November 17, 2022, 12:49 PM

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With well-above average rain recorded in the first half of Nov. 2022, the Meteorological Service Singapore forecast less rainy days in the second half of November 2022.

Short-duration thundery showers are to be expected in the afternoons and may persist into the evenings on some nights.

In the early days of the fortnight, low-pressure systems developing over northern South China Sea are forecast to bring a temporary shift in the winds to blow from the southwest or west of Singapore and the surrounding vicinity.

This may result in the passage of Sumatra squalls bringing widespread thundery showers with occasional gusty winds over Singapore between early hours and early mornings on a few days.

For the remainder of Nov. 2022, the daily temperature is forecast to range between 24°C and 33°C for most days.

It may reach around 34°C on a few days when it is less cloudy.

Statistics for the first half of November

Inter-monsoon conditions prevailed over Singapore, with prevailing winds generally light and variable in direction.

Low-level winds blew from the southwest and west of Singapore on some days.

The monsoon rain band was located over the equatorial Southeast Asia region, bringing wet weather over Singapore on most days in the first fortnight of November.

The development of several Sumatra squalls, brought about by large-scale convergences of winds, also led to widespread showers and gusty winds were experienced between the early and pre-dawn hours on many days.

Thundery showers also fell over the island on several afternoons and nights.

The Sumatra squall in the early hours of Nov. 14, 2022, resulted in a daily total rainfall of 157.2mm recorded around the Jurong West area.

This is the highest recorded daily rainfall in the first half of Nov. 2022.

The daily maximum temperature was below 33°C on most days due to the rainy weather.

There was only one day when the daily maximum temperature was above 34°C.

The highest maximum temperature recorded was 34.3°C at Paya Lebar on Nov.4, 2022, with the minimum recorded at 21.8°C around Jurong area.

Rainfall was well-above average in most parts of Singapore except the southern part of the island, where rainfall was slightly below-average.

The highest recorded rainfall anomaly of 124 per cent above average was at Woodlands while the lowest recorded anomaly was at Sentosa with 15 per cent below average.

Top photo by Mothership.