Weather will likely play an important role when you plan your trip to Kuala Selangor, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually May and June, with an average temperature of 28°C, while the coldest months are January and February, with an average of 27°C. The rainiest months in Kuala Selangor are November, December, April and October, with each month seeing an average of 270 mm of rainfall.