Very hot countries, based on average yearly temperatures, are predominantly in West Africa, with Burkina Faso, Mali, and Senegal consistently ranking as some of the hottest, often experiencing average annual temperatures above 29°C (84°F). Other extremely hot nations include Qatar in the Middle East and island nations like Tuvalu, though African nations typically top the list for overall average heat.
🌡️ 46.4°C. The hottest place on Earth right now. Australia is currently facing extreme conditions that make it the hottest location on the planet during the day. Temperatures have spiked to a scorching 46.4°C (115°F) in some regions. The heat maps are turning purple and black.
Death Valley holds the record for the highest air temperature on the planet: On 10 July 1913, temperatures at the aptly named Furnace Creek area in the California desert reached a blistering 56.7°C (134.1°F). Average summer temperatures, meanwhile, often rise above 45°C (113°F).
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Yes, 40°C (104°F) is extremely hot and poses a significant health risk, considered a life-threatening medical emergency for the human body as it can overwhelm cooling systems, causing heatstroke, organ damage, and even death, especially with high humidity or prolonged exposure, though tolerance varies with acclimatization and activity.
Winter and early summer are long and dry periods with temperatures averaging above 18 °C (64 °F). Summer is exceedingly hot; temperatures in low-lying areas may exceed 50 °C (122 °F) during May, leading to heat waves that can each kill hundreds of Indians.
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All of the top 10 warmest years have happened in the past two decades. With a mean temperature of 10.09C, 2025 now tops the list, with 2022 and 2023 the second and third warmest years since records began in 1884. It was only the second time since the 19th century that the mean temperature exceeded 10C.
Australia is unlikely to become entirely uninhabitable soon, but climate change is making large areas, especially in the north, extremely hot and potentially unlivable under higher warming scenarios (around 3°C), straining infrastructure, impacting agriculture, and displacing vulnerable populations, while coastal areas face rising sea levels and severe erosion, making parts of cities and towns uninsurable and at risk. The primary threats are extreme heatwaves, bushfires, droughts, floods, and sea-level rise, disproportionately affecting regional, Indigenous, and disadvantaged communities, forcing significant adaptation and threatening the nation's food security.
You might be wondering about how much external heat a person can tolerate. Live Science writes that most humans can endure about 10 minutes in 140–degree heat before suffering from hyperthermia, a lethal form of which is the aforementioned heat stroke.
West of 100°W, much of the U.S. has a cold semi-arid climate in the interior upper western states (Idaho to the Dakotas), to warm to hot desert and semi-arid climates in the southwestern U.S. East of 100°W, the climate is humid continental in northern areas (locations roughly above 40°N, Northern Plains, Midwest, Great ...
Earth's temperature has risen by an average of 0.11° Fahrenheit (0.06° Celsius) per decade since 1850, or about 2° F in total. The rate of warming since 1982 is more than three times as fast: 0.36° F (0.20° C) per decade.
Meteorological summer
Running from 1 June to 31 August, this three-month period aligns with the calendar for easier tracking of weather patterns.
2025 is shaping up to be among the warmest years on record, behind 2024 but rivaling 2023. Globally, northern hemisphere summer temperature records are being broken in some big and shocking ways, from the Arctic to Oceania, and in many places in between.
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The hottest country in the world (by average yearly temperature) is usually Mali or Burkina Faso, with Senegal extremely close depending on the data source. Meanwhile, the hottest air temperature ever recorded on Earth is a different record: about 56.7°C (134°F) in Death Valley, California, back in 1913.
Since 1880, average global temperatures have increased by about 1 degrees Celsius (1.7° degrees Fahrenheit). Global temperature is projected to warm by about 1.5 degrees Celsius (2.7° degrees Fahrenheit) by 2050 and 2-4 degrees Celsius (3.6-7.2 degrees Fahrenheit) by 2100.
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High fever in adults
While any temperature above your normal temperature range is considered a fever, there are different levels of fever severity: Low-grade: 99.1 to 100.4 F (37.3 to 38.0 C) Moderate-grade: 100.6 to 102.2 F (38.1 to 39.0 C) High-grade: 102.4 to 105.8 F (39.1 to 41 C).