Summer 2026 weather: exactly what the weather will be like in summer 2026 – what AI models tell us about this summer – and where to go to the seaside for nice weather

Weather summer 2026?! You know that feeling when the meteorologist tells you that the summer will be “warmer than average,” and you think – oh, great, just like all the last few summers when my car tires melted. Well, summer 2026 is a different story. Not because the Earth is suddenly cooling down (it won’t), but because something happened in the tropical Pacific that scientists rarely see: The birth of Super El Niño.

And no, this is not a new soap opera – this is the weather in the summer of 2026.

What Happened in the Pacific (and Why Do We Care in Europe) – Weather in Summer 2026

To be clear: for two years we lived in the cold phase of the so-called La Niña – that sister who crosses everything. Then something happened in recent weeks. Simply put, a huge underwater Kelvin wave in the Pacific Ocean decided that enough was enough and began to rise towards the surface. Beneath the surface, temperature anomalies at depths between 50 and 250 meters (150 to 800 ft) reached as much as 8 degrees Celsius above average.

This is something that changes the global jet stream – that high-altitude air current that, more than anything else, determines whether we wear shorts or sandals in July.

According to NOAA's CFSv2 model predictions and the latest data ECMWF SEAS5 is now showing a development comparable to the legendary Super El Niño of 2015. For laymen's comparison: that was one of the strongest in the history of measurements. Sea temperature anomalies in the Niño 3.4 area are expected to exceed +2 degrees Celsius, which is the definition of a Super El Niño.

"The development is fast enough to have a direct impact on weather patterns as early as this summer," stated by Severe Weather Europe.

And here our European story begins.

Summer 2026 weather – Europe under the microscope: hot, hotter, driest

First the good news: there will be no apocalypse. Bad news? It's going to be very, very hot. And dry. Especially for some areas.

Main pattern according to ECMWF forecast

The main forecast from the European Centre for Medium-Range Weather Forecasts (ECMWF) for the period June-July-August shows:

• above-average temperatures they extend from southern through central to northern Europe;
• main axis of heat runs through the heart of the continent;
• northwestern and central Europe: less precipitation than usual;
• Southern, Southeastern and Eastern Europe: more precipitation than usual;
• far north: also more rain.

In translation: Severe drought expected in Central EuropeThe combination of high temperatures and lack of precipitation is a classic recipe for what analysts are calling a Climate Impact Company already marked as »"great drought", which is said to have spread from Western Europe all the way to southwestern Russia.

Month by month – what the models say

May 2026 is here and has brought exactly what was predicted: above-average temperatures for most of Europe, with the exceptions of France, Poland and Scandinavia. Southern and central Europe is wetter than normal, the rest is drier.

June 2026: a high-pressure ridge forms over Great Britain and extends all the way to southwestern Russia. A low-pressure trough anchors over Greece – so Southeastern Europe and Turkey under heavy rain, while the west will be all the way to the east of the continent above average warm and dry.

July 2026: a low trough cools northwestern Russia (cloudy and wet), while southwest of the trough, western and central Europe cooks at above-average temperatures with extremely dry weather.

August 2026: high pressure causes dangerous late summer heat and dry weather in Central and Eastern Europe, including Ukraine. This is where the drought is predicted to peak.

The Mediterranean: a sea warmer than soup

And now to what actually made you start reading. Sea.

The Mediterranean Sea has been breaking its own records for several years. July 2025 was warmest July for the Mediterranean Sea since records began, with average water temperature 26.9 °CIn some areas (western Mediterranean, Balearic Islands, Tyrrhenian Sea) the anomalies reached 5 to 10°F (approximately 3 to 5.5°C) above average.

With the development of a Super El Niño and a persistent pattern marine heat waves (now already ten times more intense than in the pre-industrial era and three times longer) it is a completely realistic scenario that you will enter water in the bay of Mallorca that will be warmer than your shower at home.

In practice, this means: Weather in summer 2026

• Western Mediterranean (Spain, Balearic Islands, southern France, western Italy): record warm waters, average 27–29°C, locally even over 30 °C;
• Adriatic: summer temperatures usually between 22 and 30 °C, with a distinct upward trend in recent years; in the northern part (Istria, Kvarner) the sea is slightly colder due to shallowness and winds;
• Aegean and Ionian Sea: high values, but here the forecast shows more precipitation and storm activity.

Attention: warm seas are not only beautiful for photos. They are also fuel for explosive storms in late summer and autumn. Think of Storm Daniel in 2023 (almost 6,000 dead) or the catastrophic floods in Valencia in October 2024 – science has linked both to an overheated Mediterranean.

So where to go? A practical guide to "where there won't be an apocalypse"

Based on the model data, we offer you a few scenarios. And since we are not a travel agency here, we will tell you honestly.

The best destinations for a bearable summer 2026

1. Northern Adriatic and Istria

The models for Croatia show an interesting picture. Pula and the northern Adriatic in June they traditionally offer an average sea temperature of around 22.9°C (73.2°F)In July and August, the values rise towards 25–26°CThe bora, that northeast wind that usually does no one any favors, will probably be your ally this year – it will occasionally bring cooler air and break up the heat waves. The coast is more airy, islands such as Cres, Krk and Rab also have those minutes of respite that you don't find everywhere in the Adriatic.

2. Atlantic coast of France and northern Spain

Models show that it will Western Europe under the influence of a milder air current from the Atlantic. Brittany, Normandy, Basque country and Galicia have that combination that the summer of 2026 promises rarely: bearable temperatures, fresh ocean breezes, and water that is otherwise cooler (16–20°C), but you never cook in it.

3. Northern Mediterranean in the pre-season

If you can choose, June or early July a much better choice than August this year. Models show that the heat will build towards the end of summer and that August in Central Europe will be "dangerously hot and dry"Pre-season means fewer crowds, lower prices, and much more humane weather.

4. Scandinavia and the Baltics

Here, the models show slightly above-average temperatures, but we are talking about 23–26°C instead 38 °CStockholm, Helsinki, the Baltic coast – if you don't mind the cold, this might be the smartest choice on the continent this year.

Destinations where you'll sooner cook than swim

• Athens, Madrid, Rome, Southern Italy: expect heat waves, locally too 40°C and above;
• Andalusia and the hinterland of the Iberian Peninsula: extremely hot, water restrictions are already a traditional fixture;
• interior of the Balkans: forecasted to be extremely dry and hot;
• interior of Croatia, Hungary, Romania, Bulgaria: August will probably be brutal.

One last honest word: what about hurricanes? Weather in summer 2026

Mali bonus, ki vas bo morda pomiril (vsaj če nameravate čez lužo): Super El Niño deluje kot naravni ščit pred orkani v Atlantiku. Z višjim tlakom, močnejšim strigom vetra in stabilnejšo atmosfero se tropski sistemi preprosto ne morejo organizirati v velike nevihte. Sezona orkanov 2026 naj bi bila po napovedih izrazito šibka.

To je dobro predvsem za Karibe in Florido, a tudi nas posredno zadeva: manj atmosferskih motenj nad Atlantikom pomeni stabilnejše vremenske vzorce nad Evropo. Žal v našem primeru »stabilnost« pomeni »vroče in suho«.

Zaključek: kaj torej iz vsega tega potegniti

Poletje 2026 ne bo katastrofa. Bo pa zahtevno – in to po posebnem receptu. Super El Niño se ne pojavi vsako leto in modeli (ECMWF, UKMO, Climate Impact Company, NOAA) se v ključnih točkah presenetljivo strinjajo: toplo, marsikje predolgo suho, drugod predolgo mokro, in z morjem, ki postaja okoljska časovna bomba.

Z drugega zornega kota – in tu se splača nekaj optimizma – pa nam ti modeli dajejo nekaj, česar pred desetletjem nismo imeli: dovolj točne sezonske napovedi, da lahko realno načrtujemo dopust. Če imate to možnost, izkoristite junij in zgodnji julij namesto avgusta. Če iščete morje, pomislite na severni Jadran, atlantsko obalo Francije in Španije ali Skandinavijo. Če nujno morate v Sredozemlje sredi avgusta – izberite kraj z burjo ali maestralom in se sprijaznite z dnevnim ritmom Špancev (delati, ko je hladno, spati, ko je vroče).

Podnebne spremembe niso več napoved. So scenografija, v kateri se odvija naše življenje. UI in superračunalniki nam zdaj omogočajo, da to scenografijo vidimo nekaj mesecev vnaprej. Vprašanje je le, ali bomo to znanje uporabili pametno – ali pa se bomo, kot vsako leto, znova čudili, da je sredi avgusta v Splitu vroče.

Pa lepo poletje. Vodo si vzemite s sabo.