Extreme Temperature Diary Sunday June 21st, 2026/Main Topic: Europe Sweats Through Heatwave Dubbed Ember with Worse to Come This Week

Extreme Temperature Diary Wednesday June 17th, 2026/Main Topic: New Horrible Heatwave Dubbed Ember Slated for Europe – Guy On Climate

Historic #heatwave underway in #Europe! Peak highs upto 45°C , 100-115F!! #France may near an all-time national record. 1000s of daily and June records will fall. Western Europe is one of the fastest warming land areas, and is experiencing some of greatest growth in extreme heat as the climate warms

Jeff Berardelli (@weatherprof.bsky.social) 2026-06-21T15:47:29.984Z

Another record breaking #heatwave bakes #Europe. Temps will reach 45C / 113F in #France under the #heatdome. 1000s of records expected. Here’s a look at the day by day #heatwave forecast in degrees C and F. Europe is the fastest warming continent, warming twice as fast as the global average!

Jeff Berardelli (@weatherprof.bsky.social) 2026-06-21T13:09:40.331Z

Can you see the anomaly 👇 ?On temperature forecasts for Tuesday France has same colour than the belt of deserts in Africa and Arabia. Not normal.We are in a #climate emergency. And our politics are denying or minimising the problem because "it's the economy, stupid", to enrich the rich ☠️

Robin Lacassin (@rlacassin.bsky.social) 2026-06-21T07:38:37.392Z

Record-breaking heat expected across UK this week, says Met Office | UK weather | The Guardian

UK weather

Record-breaking heat expected across UK this week, says Met Office

Health alerts are in place as very high humidity adds to danger of heat stress for the most vulnerable

UK weather

Record-breaking heat expected across UK this week, says Met Office

Health alerts are in place as very high humidity adds to danger of heat stress for the most vulnerable

Hannah Devlin Science correspondent

Sun 21 Jun 2026 

Prefer the Guardian on Google

The Met Office has expanded its extreme heat warning for the UK, predicting record-breaking highs of 38C (100.4F) this week.

The Met Office forecasts that extremely high temperatures could last from Monday until Thursday, leading to health concerns for elderly and vulnerable people. The forecaster said there was “growing confidence” that this week may break the record for the hottest June temperature of 35.6C, which was set in 1976 in Southampton and Camden Square, London, in June 1957. It said there was a 25% chance of temperatures exceeding 40C.

“The forecast heatwave is developing into an impactful severe weather event, with record-breaking June temperatures and very high humidity,” said Tom Crabtree, a Met Office deputy chief forecaster. “The combination of heat and humidity will be oppressive and bring impacts across society from public health and infrastructure, to power and water supplies.”

A man and woman off for a walk in the countryside, wearing T-shirts and shorts
People enjoy a walk in Dunsden, Oxfordshire on Sunday. Health experts recommend avoiding the sun between 11am and 3pm in a heatwave. Photograph: Geoffrey Swaine/Shutterstock

Overnight temperatures will also be very high, with widespread tropical nights, where the temperature does not drop below 20C, across southern parts of England and especially in urban areas.

“We could also break the June record for overnight minimum temperature, which doesn’t sound as exciting but can be quite impactful,” said Becky Mitchell, a Met Office meteorologist.

“We could also see three consecutive days with temperatures of 37C or above for the first time. That’s extraordinary in June.

“Climate change is definitely playing a role in these temperatures. What happened in 2022 could happen again this week.”

An increase in potential water safety incidents is also noted, as more people are expected to visit coastal areas, lakes or rivers.

A person walks barefoot across a dry, deeply cracked earth surface extending to the horizon

People in the alert area are advised to drink plenty of fluids, keep out of the sun and avoid exercising between 11am and 3pm, the Met Office said.

The UK Health Security Agency (UKHSA) has also issued a series of yellow and amber heat health alerts, warning that health and social care services must ensure they are prepared.

The hot, humid and still weather conditions are also expected to bring a surge in mosquito numbers, particularly in the south of England away from coastal areas.

“We are expecting a high number of mosquitoes over the next week or so, and that is certainly related to the upcoming weather conditions,” said Dan Pydynowski, a senior meteorologist at AccuWeather. “During periods of more intense heat, mosquitoes might rest in shady spots like tall grass during midday and will be most active at dawn and dusk.”

Although the hottest recorded June temperature dates back to 1976, monthly average temperatures have been steadily increasing since then, with 2025 being England’s warmest June on record and the UK’s second warmest.

Dr Mehri Khosravi, a senior research fellow at the University of East London’s Sustainability Research Institute, said the increasingly regular occurrence of extreme heat events was most severely affecting elderly people and those on low incomes. “Age is the strongest factor that can affect impact of heat,” she said, adding that this was due to a combination of frailer health and being less likely to take protective steps.

“Their perception of risk is low compared to younger population,” she said. “Most of our buildings are not designed for this kind of heat, so how we behave when heat is present really affects our health impact.”

Caroline Abrahams, the charity director at Age UK, said: “The heatwave forecast for the coming week in some parts of the country is set to be unprecedented in its intensity, so older people really do need to take care, especially if they have serious health conditions. Older bodies adjust with difficulty to extremes of heat or cold so becoming very hot is a genuine risk, if you have cardiovascular or kidney problems above all.”

The UKHSA advises people to stay hydrated, avoid the sun during the hottest part of the day, and keep homes cool by closing windows and curtains during the day and opening windows to ventilate in the evening.

Europe sweats through new heatwave, with worse to come

Europe sweats through new heatwave, with worse to come

France banned alcohol in red-alert areas Sunday, Spain and Germany cancelled sports events and Britain warned of “tropical nights” as Europe sweltered through a heatwave threatening to break June temperature records.

Less than a month after a May heatwave that set records in several European countries, the continent is facing a new bout of extreme weather, with temperatures set to rise even further in the coming days.

The Portuguese capital, Lisbon, was also hit by the heatwave© PATRICIA DE MELO MOREIRA

Scientists have shown that recurring heatwaves are a clear marker of global warming, primarily caused by burning coal, oil and gas — and warn they are set to become more frequent, longer and more intense.

Here is a roundup of the impacts as the latest heatwave starts in Europe.

– France –Expand article logo  Continue reading

France went ahead with its annual street music festival, the beloved Fete de la Musique, despite the boiling heat.

But to minimise health risks and prevent potential public disturbances, the government announced a ban on alcohol consumption in public places during the festivities in departments under red alert.

And the Louvre museum in Paris scrapped a free concert under its famous glass pyramid.

Authorities placed a record 35 departments — roughly a third of the country — on red alert.

That number will rise Monday to 49 of France’s 96 mainland departments, or half the country, according to the national weather service.

In Paris, people swarmed the Canal Saint-Martin, where authorities authorised swimming so residents could cool off.

– Germany –

Organisers suspended the final of the Berlin Open tennis tournament and cleared everyone out of the event location because of “severe weather conditions”.

The mercury in the German capital topped 30C across the weekend, with storms sweeping across much of the region on Sunday.

– Spain –

In Spain, the public screening in Madrid of the national football team’s World Cup match against Saudi Arabia was cancelled because of extreme heat forecast for the capital, officials said.

Spain declared its first official heatwave of the year from Sunday through Wednesday, with temperatures forecast to reach 44C in some areas.

In Spain and neighbouring Portugal, people swarmed beaches in giant crowds, braved the streets clutching hand-held fans or used umbrellas to shield themselves from the sun as the weekend turned scorchingly hot.

– Switzerland –

The Swiss weather service warned of a “strong heatwave” bringing temperatures of up to 37C, with alerts in lower-altitude regions, and said it was unclear when it would end.

– Balkans –

Orange weather alerts for high temperatures were predicted for parts of Croatia and Serbia in the coming days, with temperatures reaching 35C.

Croatian authorities issued health recommendations for coping with extreme heat, while North Macedonia, Bosnia and Montenegro also braced for extreme temperatures.

Britain

Britain’s weather service issued amber warnings for extreme heat from Monday to Thursday, with temperatures expected to reach 38C in England and Wales in the coming days.

“Overnight temperatures will also be very high, with widespread Tropical Nights, where the temperature does not drop below 20C, across southern parts of England,” the Met Office said.

Global warming is accelerating, extreme heat is already endangering lives in India, and Australia’s Safeguard Mechanism is failing to deliver meaningful emissions cuts from the country’s biggest industrial polluters, Peter Sainsbury writes. #auspol #Climate

Pearls and Irritations (@johnmenadue.com) 2026-06-20T23:40:43.788770+00:00

www.theguardian.com/commentisfre…‘Termination shock’: trust our expert warnings on geoengineering’s planetary risks | Raymond Pierrehumbert, Julia Slingo, Michael Mann and Valerie Masson-Delmotte

Dr Paul Dorfman (@drpauldorfman.bsky.social) 2026-06-20T08:37:29.614Z

"Termination Shock — The Existential Danger Of Geoengineering" by Steve Hanley for @cleantechnica.bsky.social: cleantechnica.com/2026/06/21/t…

Michael E. Mann (@michaelemann.bsky.social) 2026-06-21T16:27:47.974Z

My new video…Cold Blob is the Canary in the Mine for AMOC Ocean Current Collapse to Shutdown: New Science Update…youtu.be/eVak9FCjb18?… #climate #oceans #ocean #Atlantic #science #weather #oceanography #AMOC #Potsdam

Paul Beckwith (@paulhbeckwith.bsky.social) 2026-06-19T03:42:34.482Z

"U.S. and Mexico have established a mining agreement which has Indigenous and other residents of the Sierra Norte mountains, as well as activists around Mexico, worried.""Our territory isn't a resource. It's our body, our memory, our spirituality."#USA #Mexico #Mining #Weapons #Water #Climate

Harms Committed (@harmscommitted.com) 2026-06-18T22:11:19.640Z

#Florida is warming. Around 3°F since 1970. #ShowYourStripes

Jeff Berardelli (@weatherprof.bsky.social) 2026-06-20T20:37:31.490Z

The complete loss of cold years in the Arctic since the 1980s is astounding. The last "blue" stripe was 1992, following the Pinatubo Volcano eruption in the summer of 1991. #ShowYourStripes #Climate #Arctic

Rick Thoman (@alaskawx.bsky.social) 2026-06-21T00:52:07.210Z

You can even wear the stripes-they're a great convo starter!Here, in my Tamman dress with Ukrainian climate scientist Svitlana Krakovska, broadcast mets @johnmoralestv.bsky.social & @bernwoodsplacky.bsky.social, and the scarves knitted for @billmckibben.bsky.social & I by the Common Grace project.

Katharine Hayhoe (@katharinehayhoe.com) 2026-06-20T17:11:40.666Z

Of course Arthur (such as it was) played a key role in the devastating flooding in MS/LA, but to me the bigger story was the off-the-charts moisture. And that moisture also contributed to suffocating heat indices across TX on Thursday. tinyurl.com/ms6kjts4

Alan Gerard (@wxmanms1.bsky.social) 2026-06-19T17:53:10.087907Z

A persistent training thunderstorm has been pounding communities south of Montreal for hours this afternoon.Radar estimates show 4-5+ inches (100-125+ mm) of rain across the region over the past six hours.

Dennis Mersereau 🛰️ (@wxdam.com) 2026-06-20T21:12:22.630Z

19:26 The big canopy is called Anvil Cloud, dominating ​a large thunderstorm is on the way.#clouds #nature #climate

Oberursheena (@twitterrefugerin.eurosky.social) 2026-06-21T17:29:35.308Z

Batteries large enough to power a city the size of Leicester for more than four days straight.www.thetimes.com/uk/environme…

Dr Paul Dorfman (@drpauldorfman.bsky.social) 2026-06-21T09:53:44.141Z

New study by ETH and ZHAW – Switzerland's electricity supply is secure without new nuclear – and at lower costs.www.srf.ch/play/tv/tage…

Dr Paul Dorfman (@drpauldorfman.bsky.social) 2026-06-21T09:57:26.723Z

Zaporizhzhia Nuclear Power Plant (ZNPP) experienced another blackout today — the twentieth since the start of Russia's full-scale invasion of Ukraine. www.ukrinform.net/rubric-econo…

Dr Paul Dorfman (@drpauldorfman.bsky.social) 2026-06-21T09:48:12.981Z

Trump's claim that Iran will never possess a nuclear weapon in doubt after failure to locate its stockpile of enriched uranium. observer.co.uk/news/interna…

Dr Paul Dorfman (@drpauldorfman.bsky.social) 2026-06-21T09:49:56.762Z

"U.S. and Mexico have established a mining agreement which has Indigenous and other residents of the Sierra Norte mountains, as well as activists around Mexico, worried.""Our territory isn't a resource. It's our body, our memory, our spirituality."#USA #Mexico #Mining #Weapons #Water #Climate

Harms Committed (@harmscommitted.com) 2026-06-18T22:11:19.640Z

Mona Khalil, Lebanon’s most well-known sea turtle conservationist, died of her wounds today after being injured by an Israeli strikeI feel sick

elia ayoub (@ayoub.bsky.social) 2026-06-19T17:36:40.080Z

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