Weather will likely play an important role when you plan your trip to Singkil, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually May and March, with an average temperature of 28°C, while the coldest months are November and October, with an average of 27°C. The rainiest months in Singkil are November, October, December and April, with each month seeing an average of 512 mm of rainfall.