VacationSelector
Painted wooden houses under palms in Key West, Key West
Key WestPainted wooden houses under palms in Key West
The Iguazu Falls in the green jungle, Puerto Iguazu
Puerto IguazuThe Iguazu Falls in the green jungle

Photos: Key West by Dominik Gryzbon, Pexels License; Puerto Iguazu by Muhammed Ballan, Pexels License.

Key West or Puerto Iguazu?

Our verdict in twelve categories, each scored against the same fixed benchmark cities, and the climate month by month, so you can choose for your trip.

Choose Key West for

  • beaches
  • nightlife
  • culture and sights

What lies behind each score is written up on Key West’s own page.

Choose Puerto Iguazu for

  • nature and the outdoors
  • prices
  • families

What lies behind each score is written up on Puerto Iguazu’s own page.

Scoreboard

Twelve categories on one fixed scale from 0 to 100. The shaded stretch is the gap between the two.

Beaches & swimming. Key West 60, Puerto Iguazu 5: Key West leads by 55 points.
Food & drink. Key West 45, Puerto Iguazu 28: Key West leads by 17 points.
Culture & sights. Key West 40, Puerto Iguazu 9: Key West leads by 31 points.
Nightlife. Key West 62, Puerto Iguazu 14: Key West leads by 48 points.
Nature & outdoors. Key West 62, Puerto Iguazu 95: Puerto Iguazu leads by 33 points.
Day trips. Key West 28, Puerto Iguazu 33: Puerto Iguazu leads by 5 points.
Good for families. Key West 40, Puerto Iguazu 55: Puerto Iguazu leads by 15 points.
Getting around. Key West 62, Puerto Iguazu 54: Key West leads by 8 points.
Shopping & style. Key West 30, Puerto Iguazu 17: Key West leads by 13 points.
Affordability. Key West 15, Puerto Iguazu 48: Puerto Iguazu leads by 33 points.
Live music & performing arts. Key West 38, Puerto Iguazu 7: Key West leads by 31 points.
Wellness & relaxation. Key West 40, Puerto Iguazu 34: Key West leads by 6 points.
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What lies behind each score is written up on the two cities’ own pages: Key West and Puerto Iguazu.

Your match

Pick a travel style or drag the sliders, and both match scores follow your weighting.

Key West
Best match
44match

Wins on beaches and nightlife with your weighting.

Puerto Iguazu
33match

Wins on nature and the outdoors and prices with your weighting.

What matters to you?

When should you go?

Pick your month. The climate figures are measured averages, not a forecast.

Key West in July

32 °Cdaytime high
27 °Cnight-time low
84 mmrain in the month
No recordsunshine a day
30 °Csea
14 hdaylight a day

Puerto Iguazu in July

22 °Cdaytime high
11 °Cnight-time low
103 mmrain in the month
5 hsunshine a day
No seasea
11 hdaylight a day

Daytime high, °C

0°10°20°30°40°JFMAMJJASOND

Rainfall in the month, mm

050100150200250JFMAMJJASOND
Key WestPuerto Iguazu

Where the figures come from

Key West's temperatures are measured 69 km from the centre, at Key West Airport.

Key West has no rain gauge within 25 km of the centre, so its rainfall comes from a gridded climate dataset read at the city rather than from a gauge further away.

Temperature and rainfall are climate normals, averaged over the years shown. Key West: 1991-2020 normals, Key West Airport (69.1 km from centre). Puerto Iguazu: 1991-2020 normals, Iguazu Aerodrome (17.8 km from centre).

Before you go

MeasureKey WestPuerto Iguazu
Official language-Spanish
CurrencyUS Dollar (USD)Argentine Peso (ARS)
SocketsAB120 V, 60 HzCI220 V, 50 Hz
Driving sideRightLeft
Time zoneUTC-5, UTC-4 in summerUTC-3
Emergency number911117 or 911
Elevation4 m162 m
Main airportKey West International Airport (EYW)2 km from centre24 non-stop destinationsCataratas Del Iguazú International Airport (IGR)18 km from centre8 non-stop destinations
Public holidays this year11 days16 days

By the numbers

MeasureKey WestPuerto Iguazu
City population26,44454,903
People per km²1,407-
Museums within 10 km70
UNESCO World Heritage sites within 50 km01
Swim season, months above 21 °C12 months-

Where else could you go?

Every comparison below shares a destination with this one, so you can follow Key West or Puerto Iguazu somewhere new.

Browse every destination

Sources

Structured data from Wikidata (CC0). Weather data by Meteostat. Meteorological data provided by NOAA, DWD and others. Rainfall where no rain gauge is within 25 km is from the TerraClimate 1991-2020 climatology (Abatzoglou et al. 2018, Scientific Data), read at the city. Sea surface temperature from NOAA OISST v2.1, NOAA Physical Sciences Laboratory. Airport data from OurAirports (public domain). Public holidays from Nager.Date (MIT). Exchange rates via Frankfurter, based on European Central Bank reference rates. Non-stop route lists from the "Airlines and destinations" tables on English Wikipedia airport articles, by Wikipedia contributors, reused under CC BY-SA 4.0. Currency from the ISO 4217 register maintained by SIX, cross-checked against country data from GeoNames (CC BY 4.0). Price level from World Bank open data (PPP conversion factor for private consumption and official exchange rate), CC BY 4.0. Time zones from GeoNames (CC BY 4.0); clock offsets computed from the IANA time zone database. Daylight hours computed from each destination's latitude using the NOAA solar position algorithm.

Category scores are our editorial verdict under rubric v3, each placed against the same fixed benchmark cities; the climate figures are measured. How the scores are set. Snapshot generated 2026-10-31. Daily budgets are estimates from country price levels.