Tanzania is a tropical country with generally high temperatures throughout the year, so it can be difficult to identify the hottest place. However, some of the hottest areas in Tanzania are likely to be the low-lying regions, particularly those in the central and southern parts of the country.

One of the hottest areas in Tanzania is the town of Dodoma, which serves as the country's capital. The town is located in a semi-arid region and has an average temperature of around 30 degrees Celsius (86 degrees Fahrenheit) throughout the year, with temperatures occasionally reaching as high as 40 degrees Celsius (104 degrees Fahrenheit) during the hottest months.

Other hot areas in Tanzania include the regions of Mbeya, Iringa, and Morogoro, which are also located in the southern and central parts of the country. Additionally, the coastal areas of Tanzania, including Dar es Salaam and Zanzibar, can also have high temperatures, with average temperatures ranging from 25 to 30 degrees Celsius (77 to 86 degrees Fahrenheit)