Flash floods may occur in low-lying areas from now onwards as Brunei is currently experiencing the inter-monsoon season, which will bring thundershowers.
The inter-monsoon season -- the season between two monsoons in a particular region -- is when Southwest monsoon winds shift to Northeast monsoon winds.
"During this season, Brunei should expect thundershowers around noon and in the evenings more frequently than in the past few months," said the Meteorological Department's Duty Forecaster Harnina Morani.
She told The Brunei Times yesterday that during heavy downpours, flash floods might occur in low-lying areas around the country.
The thundershowers, she said, will last for about an hour on average and are brought about by the sea breeze during noon and the land breeze in the evening.
"They're usually isolated showers which don't affect the entire country at one time," she said.
The Meteorological Department is advising the public to try and remain indoors during thundershowers and to switch on their headlights when driving.
The Royal Brunei Police Force (RBPF) also advises drivers and passengers to wear seatbelts and for drivers to turn their headlights on when driving in rainy conditions.
The RBPF added that motorists should avoid potholes, drive slowly and be cautious, especially during heavy rains, and to check that their vehicles, especially tyres, are in good condition before leaving the house.