Weather will likely play an important role when you plan your trip to Uttaradit, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually April and March, with an average temperature of 30°C, while the coldest months are January and December, with an average of 25°C. The rainiest months in Uttaradit are August, September, July and June, with each month seeing an average of 260 mm of rainfall.