Weather will likely play an important role when you plan your trip to Beinan, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and June, with an average temperature of 27°C, while the coldest months are January and February, with an average of 19°C. The rainiest months in Beinan are August, September, July and June, with each month seeing an average of 337 mm of rainfall.