While rankings shift slightly depending on multi-year meteorological averages, the top five hottest countries on Earth—measured by annual average ambient temperatures and extreme summer desert heatwaves—consistently include Mali, Burkina Faso, Djibouti, Senegal, and Mauritania. These sub-Saharan African nations experience relentless solar radiation and sustained high temperatures where average yearly temperatures frequently exceed 83 degrees Fahrenheit (28.5 degrees Celsius).
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