Last updated August 16, 2026 · Editorial policy
Quick answer: Summer 2026’s smartest picks: the Greek islands and Croatia for the classic Med, Slovenia and the Norwegian fjords to beat the heat, Portugal for value — and Ireland for the summer that comes with a sweater.
1. The Greek Islands
Still the summer gold standard. Naxos and Paros balance beaches, villages and prices; Milos brings the drama. June and September are the connoisseur’s months — same sea, half the squeeze.
Naxos and Paros suit different trips despite sharing a ferry route. Naxos is the larger island, with the long beach run south of the main town and a mountainous interior of villages worth a full day. Paros is more compact and better connected, which matters if you are chaining islands on a short trip. Milos rewards a boat day more than a beach day.
2. Croatia
Hvar, Vis and Korčula by ferry or flotilla, Dubrovnik at dawn, and swimming off rocks into water like glass. Book island stays by March for July–August.
Split works better than Dubrovnik as a base for most itineraries, because the ferry terminal, bus station and old town sit within a short walk of each other. From there, Hvar, Vis and Korcula are all reachable as day trips or overnight hops. Dubrovnik is a set piece best treated as one early morning rather than a week.
3. Portugal
Lisbon evenings, Algarve coves and Atlantic surf at Ericeira — Western Europe’s best summer value, with seafood dinners that cost what a starter does on the Riviera.
4. Slovenia
The heat-wave escape: Lake Bohinj’s alpine swimming, the Soča valley’s rafting and Ljubljana’s cafe terraces, all green and twenty-something degrees while the Med bakes.
5. The Norwegian Fjords
Midnight sun, ferry-linked villages and hikes (Trolltunga, Romsdalseggen) in perfect 18–22°C air. The summer-only season makes every open trail feel like an event.
6. Ireland
Wild Atlantic Way road-tripping, pub sessions and twenty shades of green — summer’s long evenings are Ireland at its best, no air conditioning required.
7. Sicily & Puglia, Italy
Italy’s south does summer like nowhere else: baroque towns, granita breakfasts and beaches from white-pebble to golden. June and late September dodge the deepest heat.
8. The Baltic Coast
Södermalm-to-sauna Stockholm archipelago hopping, or Lithuania’s Curonian Spit dunes — northern Europe’s quietly brilliant, crowd-free seaside.
Booking summer 2026
Reserve flights by February and island accommodation by March; or play the shoulder — June and September now offer July’s weather across most of the Med with 30% gentler prices and tempers.
Plan your trip to these destinations
Every destination here is chosen from independent research — Packzup runs no sponsorships or paid placements.
How to Choose: Matching the Destination to Your Trip
All five picks deliver, but they reward different travelers. Here is how I’d decide, having done all of them.
- Go to the Greek Islands if you want sun-certainty and water you can swim in from May through October. Skip Santorini and Mykonos (cruise crowds, $18 cocktails) and pick Naxos instead: the same Aegean blue, far better beaches at Plaka and Agios Prokopios, and working farm tavernas where the cheese came from the pasture next door.
- Go to Croatia for walled medieval towns and pebble coves. Use Split as your base, not Dubrovnik. Split is cheaper, livelier, and a better ferry hub; Dubrovnik nudges Western-European prices (roughly $50–75/day on a budget) and chokes on cruise traffic by noon.
- Go to Portugal for the best value-to-quality ratio in Europe: world-class food and wine for around $50–75/day, plus surf, cities, and the Algarve all reachable cheaply.
- Go to Slovenia for alpine calm without the Alps’ price tag, and Norway for the single most dramatic scenery on the list.
One rule cuts across all of them: travel in May or late September. Peak-summer prices run 30–50% higher, and the crowds at every hotspot here roughly triple between the shoulder season and August.
The Cost Breakdown: What Each Pick Actually Runs
Here’s what to budget per person per day (excluding flights), based on real 2026 prices and an independent, non-package style of travel.
- Portugal — ~$50–75/day. Best value here. A pastel de nata is under $1.50, and a full lunch with wine in Porto rarely tops $20. Peak season: June–September; shoulder (May/late Sept) is materially cheaper and far less crowded.
- Greek Islands — ~$70/day budget, up to $250 mid-range. The number swings less on your style than on which island you choose: Naxos and Paros run a fraction of Santorini. Best season: late May–June and September for swimmable seas without August surcharges.
- Croatia — ~$50–75/day. Dorm beds are €20–25 inland, €30–40 on popular islands. Best season: June and September.
- Slovenia (Lake Bled) — ~$88/day budget, ~$209 mid-range. Best season: June–September.
- Norway — the splurge. The Nærøyfjord cruise runs about $50–58 one way; a Flåm round-trip with the shuttle starts near $68. Plan meals and lodging at double the others. Best season: June–August for the long daylight.
Insider money tip for Bled: the pletnar boatmen take cash euros only (€20/person round-trip), so bring notes; for two or more people, renting a private rowboat at €25/hour is cheaper.
Getting There and Around: The Logistics That Actually Matter
Flight access varies more than most people expect, and it should shape your shortlist.
- Portugal is the easy transatlantic win. Nonstop JFK–Lisbon on TAP or Delta is about 6h55m — the shortest hop on this list — and round-trips routinely dip under $400. Lisbon connects cheaply onward to Porto and the Algarve.
- Greece is the long haul: nonstop JFK–Athens runs about 9h40m on Delta, American, or Norse, then a domestic flight or ferry to the islands. Budget a full travel day to reach Naxos.
- Croatia and Slovenia almost always route through a European hub (Frankfurt, Munich, Vienna). From Ljubljana airport, the Arriva bus to Lake Bled is about €4.10 on weekdays (cheaper on weekends), or a fixed ~€60 taxi.
Norway’s big insider tip: on the famous Flåm Railway, book the Myrdal→Flåm (downhill) leg early — it connects off the main Bergen–Oslo line and the peak midday departures fill up fast. In summer, reserve the popular 10 a.m.–2 p.m. slots 3–4 weeks ahead. And pack a waterproof layer regardless of season: once a fjord cruise gets moving, it can feel 20 degrees colder than the dock.
Planning further ahead? See the 2027 edition of this guide.
Summer 2026 at a glance: how the destinations compare
| Destination | Best for | Typical conditions | The trade-off |
|---|---|---|---|
| The Greek Islands | Sun certainty, island hopping and a long swimming season | Usually hot and dry; sea typically warmest late summer | August ferries and rooms sell out, and the meltemi wind can strand plans |
| Croatia | Walled towns, pebble coves and ferry-linked island routes | Typically hot and settled; water usually calm and clear | Dubrovnik is priced near Western Europe and clogs with cruise arrivals |
| Portugal | Value, city-and-coast combinations and Atlantic surf | Usually sunny; coastal mornings can start grey and cool | Atlantic water stays bracing and the Algarve gets very busy in August |
| Slovenia | Heatwave escape, alpine swimming, rafting and short drives | Typically mild and green; showers usually build in afternoons | Afternoon mountain storms are common and Bled draws heavy coach traffic |
| The Norwegian Fjords | Big scenery, ferry-linked villages and long-daylight hiking | Usually cool and changeable; expect rain on some days | Costs roughly double the others and rain can close hikes at short notice |
| Ireland | Road trips, long evenings and no need for air conditioning | Typically cool and showery, with very long summer evenings | Rain is likely on several days and coastal beds book out for July and August |
| Sicily & Puglia, Italy | Baroque towns, food-led trips and varied beaches | Usually very hot inland; coastal breezes ease it a little | Peak-August heat is punishing and a hire car is effectively essential |
| The Baltic Coast | Crowd-free coast, saunas, dunes and slow archipelago days | Typically mild with long daylight; sea usually stays chilly | The sea is cold for swimming and the reliable weather window is short |
Conditions are typical patterns, not forecasts. Weather, crowd levels and opening seasons vary year to year, so treat this table as a way to shortlist rather than as a guarantee, and confirm anything date-specific before booking.
How to choose where to go in Summer 2026
Start with heat tolerance, because it splits this list cleanly. If you want dependable sun and water warm enough to stay in, the Greek Islands and southern Italy deliver it most reliably, with Croatia close behind. If anyone in the group wilts once the thermometer climbs into the thirties, choose Slovenia, the Norwegian fjords, Ireland or the Baltic coast instead, where summer usually stays temperate and the days are built around walking rather than hunting for shade.
Budget makes the next cut. Portugal and Croatia generally give the most holiday per pound here, with Portugal usually the stronger performer once food and internal travel are counted, and Croatia weakest on value in Dubrovnik specifically. Norway sits at the opposite end: plan on lodging, ferries and restaurant meals costing roughly double, and treat every figure you read anywhere as a planning estimate rather than a quote. Slovenia lands between the two.
Trip length matters more than people expect. With a week or less, Portugal, Ireland and Slovenia work well because you land and are essentially there. The Greek Islands and the Norwegian fjords both consume travel days at each end, whether through a domestic flight, a long ferry leg or a slow transfer from airport to village. If you only have five nights, spending two of them in transit rarely repays the effort.
If swimming is the actual point of the holiday, rank by sea temperature rather than scenery. Greece, Croatia and southern Italy usually give you water you can stay in comfortably for an hour. Portugal's Atlantic stays bracing even at the height of summer, which suits surfers more than paddlers, and the Baltic is colder again. Slovenia's alpine lakes are the compromise: swimmable, calm and much closer to a city than any coast on this list.
Timing reshuffles the ranking. Late September usually still works for the Greek Islands, Croatia and Sicily and Puglia, where the sea holds warmth after the crowds thin out. Norway, the Baltic coast and Ireland peak earlier and fade faster, and ferry, hut and guided-walk schedules typically start winding down from early September, so confirm operating dates before you commit. Slovenia holds up well into autumn if you are hiking rather than swimming.
Practical Summer 2026 travel tips
- Mid-August is Italy's own holiday peak. The Ferragosto public holiday normally falls on 15 August, when many family-run restaurants in Sicily and Puglia close and domestic beaches fill, so confirm opening hours locally before you travel.
- Greek and Croatian ferry timetables usually thin from mid-September, and some smaller island routes drop to a handful of sailings a week. Check the current published schedule before booking non-refundable accommodation on a small island.
- The meltemi wind typically blows hardest across the Aegean in July and August and can cancel small-boat crossings at short notice. Build a spare day into any island-hopping route that ends at a flight home.
- Norway's midnight sun has usually passed by mid-August and daylight shortens quickly through September. Seasonal mountain roads, huts and guided Trolltunga walks normally close for the year in early autumn, so verify dates before planning around them.
- If you are now planning for next summer rather than this one, aim to hold flights around February and island accommodation by March. Small-island rooms in Greece and Croatia typically sell out earliest for July and August.
- September usually delivers Mediterranean sea temperatures close to August's with noticeably softer prices and calmer towns. The trade-off is a rising chance of rain later in the month, particularly in Slovenia and northern Croatia.
- In Sicily and Puglia, book a hire car with working air conditioning well ahead and plan sightseeing for early morning or evening. Inland baroque towns typically run several degrees hotter than the coast.
Summer 2026: frequently asked questions
Where are the best summer holiday destinations in 2026?
The strongest summer 2026 picks are the Greek Islands, Croatia, Portugal, Slovenia, the Norwegian fjords, Ireland, Sicily and Puglia, and the Baltic coast. The Mediterranean options give the most dependable sun and swimming, while Slovenia, Norway, Ireland and the Baltic are the temperate alternatives for anyone who would rather not plan a holiday around avoiding the afternoon heat. Choose by heat tolerance first, then by budget.
Is it too late to book a summer 2026 holiday?
No, but the realistic window now is late August into September rather than peak season. Greece, Croatia and southern Italy typically hold warm sea temperatures well into September, and rooms that were unavailable in July often free up as families return to school. Expect less choice on small islands and thinner ferry schedules, so confirm sailings and opening dates before paying for anything non-refundable.
Where in Europe is cool in summer?
Slovenia, the Norwegian fjords, Ireland and the Baltic coast are the coolest picks on this list. Slovenia's alpine lakes and river valleys usually stay comfortable while the Mediterranean bakes, Norway's fjord air is typically mild enough for a full day of hiking, and Ireland and the Baltic rarely turn uncomfortably hot. The trade-off is unreliable weather, so pack waterproofs and treat any single forecast as provisional.
Is September better than August for a Mediterranean holiday?
For most travellers, yes. September usually keeps sea temperatures close to August's across Greece, Croatia and southern Italy while prices, queues and road traffic all ease once schools go back. The risks are shorter days, reduced ferry frequency from mid-month and a rising chance of rain towards the end. If island hopping is the plan, the first half of September is the safer half.
Which summer destination offers the best value?
Portugal is generally the best value on this list, with Croatia close behind everywhere except Dubrovnik. Portugal combines short flight times from much of Europe, inexpensive onward travel to Porto and the Algarve, and restaurant meals that cost a fraction of Riviera equivalents. Norway is the clear splurge, with lodging, ferries and eating out typically running around double. Treat all of that as a planning estimate, not a quote.
How far ahead should I book a summer holiday?
Aim to hold flights around February and island accommodation by March for the following summer. Small-island stays in Greece and Croatia, popular Norwegian fjord lodges and the Slovenian lakes are the first to disappear for July and August. Booking later is usually still workable if you travel in June or September, when demand is softer and cancellations come back into the system more often.
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Written by
John Morrison is the founder and lead travel writer at Packzup. Over the past decade he has explored destinations across Africa, the Americas, Asia, Europe, the Middle East, and Oceania — always self-funded, never on a press trip.
