
Japan’s national and Tokyo temperature records fall on the same day as intense heat wave continues.
There was already plenty of anecdotal evidence that this summer in Japan is extremely hot. The scorching temperatures have caused schoolgirls to need hospitalization, meat to cook on car roofs, and even the country’s ordinarily industrious mosquitoes to say, “You know what? Let’s take a break from sucking people’s blood and just relax instead.”
And now there’s numerical evidence of 2018’s heat as well. At 2:16 in the afternoon on Monday, July 23, the Japan Meteorological Agency observed a temperature of 41.1 degrees Celsius (106 degrees Fahrenheit) in the city of Kumagaya, Saitama Prefecture (Tokyo’s neighbor to the north), which is the highest temperature ever recorded in Japan. The previous record was held by Ekawasaki, a town in Kochi Prefecture on the island of Shikoku, which hit 41 degrees flat back in August of 2012.
On the same afternoon Tokyo’s regional record fell as well. Ome, a district in the northwest of the capital and not far from the border with Saitama, experienced temperatures as high as 40.8 degrees Celsius by 2 p.m., which is the first time ever for a temperature above 40 degrees to be observed in Tokyo.
▼ The sun on July 23, desperately trying to melt east Japan, or at least turn it into a crispy senbei rice cracker
Unfortunately, these potentially dangerous conditions come right as the peak summer travel season starts, with school out for both kids in Japan and many foreign countries, prompting groups both domestic and international to head out to Japan’s most popular sightseeing destinations. Making things especially difficult is that this is also an unusually dry summer for Japan, and the lower humidity can sometimes create the illusion that it’s not as hazardously hot as it actually is.
So if you’re out and about in Japan, make sure to drink plenty of fluids (the oddly named yet delicious sports drink Pocari Sweat, and its rival Aquarius, can be found in any convenience store), slather on the sunscreen (which is hiyakedome in Japanese, in case you need to ask for help finding it at the drugstore), and watch out for dehydration.
Sources: NHK News Web (1, 2) via Jin (1, 2), Weather News via Hachima Kiko
Top image: Pakutaso
Insert images ©SoraNews24
Follow Casey on Twitter, where he’s not complaining about the heat because he used up all his gripping privileges complaining about the cold in the winter.


Japan just had its hottest day ever in its recorded history
Japan’s hottest city uses its scorching record to boost tourism
It’s so hot in Japan that people are cooking food in/on their cars【Photos】
We cook a monjayaki Japanese pancake on the hood of a car during Japan’s hottest summer ever【Vid】
Japan Weather Association creates new words to describe merciless summer heat
Japanese onsen egg maker from 100-yen store Daiso needs to be on your shopping list
Starbucks Japan releases new My Fruit³ Frappuccino at only 34 stores around the country
Japanese man drives truck that’s on fire directly to fire station, drops flaming potatoes[Videos]
Cherry blossoms begin blooming in Japan with record-early starts for sakura season
TikTok releases its Year in Music 2025 – Japan’s Top 10 Songs ranking
Expo 2025 mascot Myaku-Myaku to release tastefully erotic photo book
Studio Ghibli adds new Mother’s Day gift sets to its anime collection in Japan
Pizza Hut Japan’s new ie-kei ramen pizza is here and weird, but is it tasty too? [Taste test]
Studio Ghibli director Hayao Miyazaki is still drawing…and walking in his Vans
Make apple pies on the stovetop with new cooking gadget from Japan
Train station platform ramen store closes its doors on half a century of history in Tokyo
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Virtual idol Hatsune Miku redesigned with look that adds new elements and brings back old ones
The next time you’re feeling stressed out, you could relax on a Pokémon Psyduck chair from Japan
Komachi Shokudo: Japanese mum’s-style cooking for breakfast, lunch and dinner in Tokyo
Starbucks Japan opens new cafe and art gallery in top Tokyo tourist neighbourhood
The top 10 graduation songs in Japan as chosen by current Japanese high school students
7-Eleven Japan’s giant fried chicken skewer would be too big to eat, so it’s really for cuddling
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
Japan’s cherry blossom season predicted to start earlier than we’d thought, especially in Tokyo
Starbucks Japan releases a new Cream Puff Frappuccino for a limited time
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Japan’s newest Shinkansen has no seats…or passengers [Video]
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Tokyo too hot for you? It’s already snowing in Hokkaido, Japan’s northern island【Photos】
Japan’s intense heat wave has killed 79 people in Tokyo
Summer in Japan doesn’t feel like a Japanese summer this year, many are saying
This is the best summer in years to visit Japan…if you hate mosquitoes
Tokyo’s riot cops finally win right to carry drinks on duty during Japan’s hottest summer ever
Japanese summer is worse than summer in Death Valley, says our correspondent, a seasoned traveler
Japan’s new wearable air conditioner belt is here just in time for the Tokyo heat wave
Japan asked to vote on what to officially call insanely hot days
What colors of clothing will keep you cooler in summer? Japanese researchers experiment
Tokyo Disney Resort’s low park attendance continues amid extreme heat
10 girls rushed to hospital for heatstroke after Tokyo high school’s non-air-conditioned assembly
Tokyo loses 2020 Olympic marathon as IOC shifts race to another part of Japan
Very smart, funny cat shows exactly what it feels like to go outside in Japan’s heat wave【Video】
Japan Meteorological Agency suspects rainy season may end earlier than ever this year
Tokyo Olympics might allow you to take one, and only one, drink with you into sweltering stadiums