Taking into account the local weather in Thio is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually February and January with an average temp of 76°F, while the coldest months are August and July with an average of 68°F. The rainiest months in Thio are January, February, March, and December, with each month seeing an average of 12 inches of rainfall.