The Ethiopian site associated with the highest average annual temperature recorded on Earth is Dallol.
Dallol is a former mining settlement in Ethiopia's Danakil Depression, a harsh region near the Eritrean border. Temperature observations made between 1960 and 1966 produced an annual mean of roughly 34.6°C, often rounded to 35°C. The record refers specifically to a long-term average at an inhabited location, not to the world's highest single temperature reading.
Dallol's extreme heat results from several factors working together: its very low elevation, tropical latitude, proximity to the hot Red Sea region, minimal rainfall and weak seasonal cooling. Daytime temperatures regularly exceed 40°C, while the nights and cooler months remain unusually hot. The area also contains salt flats, acidic pools, colorful hydrothermal terraces and fumaroles.
Dallol is often confused with the Danakil Depression, Erta Ale or the wider Danakil Desert. Those names describe nearby geological or geographic features; Dallol is the specific settlement and hydrothermal area linked to the annual-temperature record. It is now a ghost town rather than a permanently inhabited community.