IT'S a unique sight of the Merlion, seen through drops of water on a glass pane - just as it has been a unique March - wetter than usual, with one rainfall recording station in Choa Chu Kang receiving 113.4mm of rain on Wednesday.

That is more than half the average amount of rain that usually falls in the whole of March - 183.1mm.

It is also the highest amount of rain in a single day so far this month.

The western part of the island was particularly wet. Besides Choa Chu Kang, Bukit Panjang also saw more than 100mm of rain by the afternoon.

Do not leave that umbrella at home - the weatherman says there are going to be more wet days, at least until the weekend.

The unusually wet March is thanks to moisture-laden winds from the Pacific Ocean, which are forming massive rain clouds over the region, said the National Environment Agency's Meteorological Service.

Moist winds are due to a 'moderately strong La Nina' in the Pacific Ocean.

La Nina is a phenomenon causing cooler, wetter weather.

Despite the downpour, no floods were reported on Wednesday, said the national water agency PUB.