Weather is only one factor, but it can really affect your travel plans, especially if you're planning an extended stay in Bintuni. The hottest months are usually October and May, with an average temperature of 27°C, while the coldest months are August and July, with an average of 26°C. The rainiest months in Bintuni are April, March, January and December, with each month seeing an average of 381 mm of rainfall.