If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Pandan: The hottest months are usually May and June, with an average temperature of 28°C, while the coldest months are February and January, with an average of 26°C. The rainiest months in Pandan are July, December, October and January, with each month seeing an average of 320 mm of rainfall.