Taking the local weather in Tam Hà into account is an important factor for planning your visit, especially if you plan to spend your trip by the pool. The hottest months are usually June and July, with an average temperature of 29°C, while the coldest months are January and February, with an average of 23°C. The rainiest months in Tam Hà are November, October, December and September, with each month seeing an average of 540 mm of rainfall.