Most people around the world live in places with seasonal weathers. There is a period every year where it gets colder and a period where it is warmer. But there are also places on our planet with year-long warm weather. Temperatures there, on average, tend to never drop below 20 °C / 68 °F. But which places are the absolute warmest in the world? The following shows you the Top 10 of the warmest cities in the world. The ranking features major cities with a population of at least 100,000 and is based on the average annual temperature in said city.
The 10 Warmest Cities in the World

1. Bosaso, Somalia

Bosaso is the warmest city in the world. The average daily temperature in Bosaso reaches 30 °C / 86 °F. The city is located in the autonomous region of Puntland in Northern Somalia. It is also located on Somalia’s northern shore at the Gulf of Aden and is therefore characterized by a hot desert climate. Bosaso has a population of around 290,000 and is known to be the most wealthy and also safest city in Somalia, a country plagued by an ongoing civil war and constant Islamic terrorist attacks.
2. Khartoum, Sudan / Omdurman, Sudan

Source: Christopher Michel / CC BY 2.0
The capital of Sudan Khartoum and its adjacent city Omdurman are collectively the second warmest city in the world. On an average day in the year, you can expect a mean temperature of 29.9 °C / 85.8 °F. While Khartoum is the capital of Sudan, the neighboring Omdurman is the country’s most populous city with around 2.4 million people. Put together, more than 3 million people live in the the metropolitan area right at the Nile river. The second warmest major city in the world is therefore located at the shores of the world’s longest river. The area is located on the Southeastern edge of the Sahara desert and is therefore also characterized by a hot desert climate.
3. Djibouti City, Djibouti

The city of Djibouti is the capital of the country of Djibouti and the third warmest city in the world. Djibouti City has an average temperature of 29.9 °C / 85.8 °F and therefore the same average as Khartoum, but a lower high temperature average (33.9 °C compared to Khartoum’s 37 °C). Djibouti City is located at the Gulf of Tadjoura on Africa’s Southeastern coastline. As the capital and largest city of Djibouti, around 560,000 people and by that, more than 70% of the small African country’s population lives in Djibouti City. The city has a hot desert climate.
4. Niamey, Niger

Source: Roland / CC BY-SA 2.0
Niamey is the the next capital in this ranking of Top 10 warmest cities in the world. The capital of the country of Niger shows an average temperature of 29.3 °C / 84.7 °F. The Niger river, the 10th longest river in the world, flows through the city in Western Africa. Around 1.3 million people now live in the rapidly growing capital of Niger. The city and entire region is marked by a semi-arid climate. Niamey is therefore also the warmest major city in the world outside of a hot desert climate.
5. Garissa, Kenya

Garissa completes the Top 5 of the warmest cites in the world. The city in northeastern Kenya has an average temperature of 29.3 °C / 84.7 °F. It therefore shows the same average as Niamey, but has a slightly lower high temperature average (35.8 °C compared to Niamey’s 36.2 °C). The city in Kenya’s Garissa County has a population of around 110,000 which almost entirely comprises of ethnic Somalis. Unfortunately, the city lies within one of the most dangerous areas in the world which is plagued by constant Islamist terrorist attacks like the 2015 Garissa University College attack which resulted in the deaths of 148 people. The city and region are characterized by a semi-arid climate.
6. Bangkok, Thailand

7. Aden, Yemen

Credit: T3n60 / CC BY 3.0
8. Muscat, Oman

9. Port Sudan, Sudan
Credit: William Davies
10. Phnom Penh, Cambodia

The 10 Warmest Cities in the World
Top 10 Warmest Cities in the World: |
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1. BOSASO, Somalia Average temperature: 30 °C / 86 °F |
2. KHARTOUM, Sudan Average temperature: 29.9 °C / 85.8 °F |
3. DJIBOUTI CITY, Djibouti Average temperature: 29.9 °C / 85.8 °F |
4. NIAMEY, Niger Average temperature: 29.3 °C / 84.7 °F |
5. GARISSA, Kenya Average temperature: 29.3 °C / 84.7 °F |
6. BANGKOK, Thailand Average temperature: 29.1 °C / 83.5 °F |
7. ADEN, Yemen Average temperature: 29.1 °C / 84.4 °F |
8. MUSCAT, Oman Average temperature: 28.8 °C / 83.8 °F |
9. PORT SUDAN, Sudan Average temperature: 28.5 °C / 83.3 °F |
10. PHNOM PENH, Cambodia Average temperature: 28.5 °C / 83.3 °F |
Warmest cities in the world based on average daily (24 hours) temperature of cities with populations of at least 100,000 according to data of the last two decades.
Tiebreaker: Higher average high temperature.
Summary
As you can see, the Top 10 of warmest cities in the world all lie in Africa or Asia (6 cities cities in Africa, 4 in Asia to be exact). More precisely, all of the Top 10 warmest cities lie within these two lines, just north of the Equator:

If you want to experience the warmest cities in the world, now you know where you have to travel to.