Weather will likely play an important role when you plan your trip to Mashi, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July, with an average temperature of 28°C, while the coldest months are January and December, with an average of 11°C. The rainiest months in Mashi are June, May, April and March, with each month seeing an average of 231 mm of rainfall.