Weather is probably a major factor when you plan your trip to Tanjung Pinang, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually May and April with an average temp of 83°F, while the coldest months are January and February with an average of 81°F. The rainiest months in Tanjung Pinang are December, November, January, and May, with each month seeing an average of 11 inches of rainfall.