Weather will likely play an important role when you plan your trip to Ota, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually January and February with an average temp of 83°F, while the coldest months are August and July with an average of 79°F. The rainiest months in Ota are June, July, September, and October, with each month seeing an average of 10 inches of rainfall.