Weather is probably a major factor when you plan your trip to Simanggang, but bear in mind that cheaper options are usually available when the weather isn’t as good. The hottest months are usually August and May, with an average temperature of 26°C, while the coldest months are February and November, with an average of 25°C. The rainiest months in Simanggang are December, November, January and March, with each month seeing an average of 333 mm of rainfall.