European hotels · zero-sweat edition

Does it have AC??

Will you sleep… or sweat? We read thousands of guest reviews so you find out before booking whether that “air conditioning” is real — or a locked thermostat stuck at 24°C.

Check a hotel →
Hotels checked
41
Cities covered
12
Have real AC
42%
Reviews analyzed
253

Coolest city so far: Athens (avg 77/100) · Sweatiest: Copenhagen (avg 25/100)

The Great European AC Leaderboard 🏆

Which cities will let you sleep, and which will slow-roast you? Ranked by average AC score of the hotels we've checked (excluding jury's-out hotels).

#CityHotels checkedReal AC rateAvg. AC scoreVibe
1AthensGreece367%77❄️ Sleep tight
2LisbonPortugal367%69🌡️ Coin flip
3PragueCzechia250%64🌡️ Coin flip
4BarcelonaSpain450%58🌡️ Coin flip
5LondonUnited Kingdom540%56🌡️ Coin flip
6BerlinGermany433%49🌡️ Coin flip
7ViennaAustria333%48🌡️ Coin flip
8AmsterdamNetherlands333%47🌡️ Coin flip
9BudapestHungary250%46🌡️ Coin flip
10ParisFrance633%45🌡️ Coin flip
11RomeItaly433%44🔥 Pack a fan
12CopenhagenDenmark20%25🔥 Pack a fan

How the sausage gets refrigerated

Guests spill the truth

Booking checkboxes lie; reviews don't. We collect guest reviews and keep only the ones that actually talk about air conditioning — in English, French, German, Spanish, Italian and Portuguese.

AI reads every complaint

Claude reads the AC-related reviews for each hotel and issues a verdict with quoted evidence: is the AC real, crippled by locked thermostats and 'AC season', or missing entirely?

You book with confidence

Every hotel gets a verdict, a 0–100 AC score, and quirk tags like '🔒 thermostat locked' — so the only surprise on your trip is how good the gelato is.

Hot questions, cool answers

Why do so many European hotels not have air conditioning?

Older buildings, historically mild summers, strict heritage-protection rules, high energy costs, and national regulations (some countries cap minimum cooling temperatures) all play a part. Many buildings predate AC by a century or two — retrofitting is expensive and sometimes not allowed.

The hotel listing says 'air conditioning' — isn't that enough?

Not even close. 'Air conditioning' as a checkbox can mean a locked thermostat that won't go below 24°C, a unit that only runs during official 'AC season', a portable unit on request, cooling that shuts off at night, or a fan. Guest reviews are where the truth lives — that's what we analyze.

How do you decide a hotel's AC verdict?

We collect guest reviews, filter for the ones that actually mention air conditioning (in six languages), and have an AI model (Claude) read them and produce a verdict: Real AC, AC… technically (crippled), No AC, or Jury's out when there isn't enough evidence. Every verdict comes with quoted evidence from real reviews.

What does the AC score mean?

It's a 0–100 estimate of how likely you are to actually sleep cool: 70+ means guests consistently confirm working, adjustable cooling; 40–69 means it exists but with catches; below 40 means start shopping for a portable fan.

Can I trust these verdicts completely?

Treat them as a well-researched heads-up, not a guarantee. Verdicts are AI summaries of guest reviews, hotels renovate, and units break. If AC is mission-critical for your trip, email the hotel and ask three questions: Is it in-room? Is it adjustable? What's the minimum temperature?

What is 'AC season' and why does it matter?

In several countries, hotels (especially ones with central systems) only switch cooling on between fixed dates — often mid-June to mid-September — regardless of the actual weather. A May or early-June heatwave can leave you with a decorative thermostat.