Sweater weather in Singapore as temperature falls to 20.1 deg C, lowest so far in 2026

In an update at 11.42am, the NEA said heavy rain was expected over the southern, eastern and central areas of Singapore from 11.50am to 12.30pm.

Netizens shared photos and videos of the weather conditions on social media.

Facebook user Kenneth Ken posted a photo showing dramatic, dark clouds.

Another Facebook user, Felicia Lee, posted a reel showing a landscape timelapse of gloomy clouds rolling across the skies above the Marina Bay area.

Social media user Doris Ong Guek Eng posted a photo of the dark clouds hanging over a housing estate.

“From July to October, a heatwave will come to South-East Asia. I don’t know if people enjoy the cooling raining days or the upcoming heatwave,” another user said in the comments.

On May 29, the MSS said that warmer and drier conditions are to be expected from June to October because of El Nino and the Indian Ocean Dipole.

El Nino is a naturally occurring climate pattern associated with changes in both the ocean and atmosphere in the equatorial Pacific Ocean, including an abnormal warming of surface waters in the eastern Pacific.

El Nino events tend to have the greatest influence on Singapore’s rainfall during the south-west monsoon season from June to September, increasing the likelihood of dry conditions. The weather phenomenon also brings warmer temperatures to Singapore.

An Indian Ocean Dipole is similar to El Nino but develops in the equatorial Indian Ocean, typically ending by December or January.

A positive Indian Ocean Dipole is expected to develop in July or August, bringing drier and warmer weather to Singapore and its surrounding regions. Cooler sea surface temperatures in the eastern Indian Ocean result in less cloud formation, contributing to the drier conditions. – The Straits Times/ANN