If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Ayer Keroh: The hottest months are usually March and April, with an average temperature of 27°C, while the coldest months are January and February, with an average of 27°C. The rainiest months in Ayer Keroh are November, December, October and May, with each month seeing an average of 260 mm of rainfall.