Singaporeans can expect moderate to heavy thundery showers in the afternoon for the rest of 2019.
The Meteorological Service Singapore (MSS) has shared on Monday that the country and the surrounding region are currently in the wet phase of the Northeast Monsoon season.
It said that this phase is expected to prevail into January 2020 before transitioning to the dry phase of the season (February – mid-March).
For the second fortnight of December 2019, the low-level winds are forecast to blow from the northwest or northeast.
As for the rest of December 2019, Singaporeans can expect strong daytime heating of land areas coupled with localised convergence of winds that influence the weather in Singapore on eight to ten days in the fortnight.
Showers are likely around the Christmas period. Overall, the rainfall for December 2019 is expected to be well above average.
In the last fortnight of 2019, the daily temperatures are forecasted to range between 24°C and 33°C on most days and could dip to a low of around 23°C on a few days.
Windy with low-level winds for first fortnight of December
On the first few days of December 2019, strong solar heating of land areas coupled with the convergence of winds in the surrounding region brought moderate to heavy thundery showers in the afternoon.
The service shared that the intense thundery showers on 2 December 2019 recorded a daily total rainfall of 102.8mm at Bukit Panjang, which was the highest daily total rainfall recorded for the first fortnight of December 2019.
It also said that a surge of northeast monsoon winds prevailed throughout the fortnight since 5 December 2019, and brought cloudy and windy conditions to Singapore.
While there were some passing showers over the island in the first week, periods of moderate to occasionally heavy rain/showers fell on all but one day in the second week of December 2019.
According to the service, over the 13 December 2019 weekend, the rain was widespread and fell continuously over the island before dissipating in the evening of 15 December 2019.
The highest daily total rainfall recorded over this weekend was 80.9mm on 15 December 2019 at Loyang. Meanwhile, the highest daily total rainfall recorded throughout this monsoon surge event was 100.4 mm on 9 December 2019 at Pulau Ubin.