VacationSelector
The coastline of the Hotel Zone, Cancun
CancunThe coastline of the Hotel Zone
Ross Castle on Lough Leane, Killarney
KillarneyRoss Castle on Lough Leane

Photos: Cancun by Tellez Erik, Pexels License; Killarney by NicholasH, CC BY-SA 4.0, cropped.

Cancun or Killarney?

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 Cancun for

  • beaches
  • nightlife
  • families

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

Choose Killarney for

  • getting around
  • live music and the arts
  • nature and the outdoors

What lies behind each score is written up on Killarney’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. Cancun 98, Killarney 22: Cancun leads by 76 points.
Food & drink. Cancun 44, Killarney 33: Cancun leads by 11 points.
Culture & sights. Cancun 15, Killarney 28: Killarney leads by 13 points.
Nightlife. Cancun 70, Killarney 32: Cancun leads by 38 points.
Nature & outdoors. Cancun 66, Killarney 82: Killarney leads by 16 points.
Day trips. Cancun 65, Killarney 58: Cancun leads by 7 points.
Good for families. Cancun 78, Killarney 42: Cancun leads by 36 points.
Getting around. Cancun 25, Killarney 47: Killarney leads by 22 points.
Shopping & style. Cancun 40, Killarney 22: Cancun leads by 18 points.
Affordability. Cancun 46, Killarney 35: Cancun leads by 11 points.
Live music & performing arts. Cancun 17, Killarney 35: Killarney leads by 18 points.
Wellness & relaxation. Cancun 55, Killarney 42: Cancun leads by 13 points.
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What lies behind each score is written up on the two cities’ own pages: Cancun and Killarney.

Your match

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

Cancun
Best match
52match

Wins on beaches and nightlife with your weighting.

Killarney
40match

Wins on getting around and live music and the arts with your weighting.

What matters to you?

When should you go?

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

Cancun in July

30 °Cdaytime high
26 °Cnight-time low
89 mmrain in the month
No recordsunshine a day
29 °Csea
13 hdaylight a day

Killarney in July

18 °Cdaytime high
13 °Cnight-time low
88 mmrain in the month
4 hsunshine a day
15 °Csea
16 hdaylight a day

Daytime high, °C

0°10°20°30°40°JFMAMJJASOND

Rainfall in the month, mm

050100150200250JFMAMJJASOND
CancunKillarney

Where the figures come from

Cancun has no weather station within reach, so its figures come from a gridded climate model rather than a measured record, and read a broad area rather than the city itself.

Killarney's temperatures are measured 53 km from the centre, at Valentia Observatory.

Killarney 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. Cancun: 2001-2020 normals, NASA POWER reanalysis grid, no weather station within 90 km. Killarney: 1991-2020 normals, Valentia Observatory (52.7 km from centre).

Before you go

MeasureCancunKillarney
Official languageSpanish, Nahuatl, Yucatec MayaEnglish, Irish
CurrencyMexican Peso (MXN)Euro (EUR)
SocketsAB127 V, 60 HzG230 V, 50 Hz
Driving sideRightLeft
Time zoneUTC-5UTC, UTC+1 in summer
Emergency number911112
Elevation5 m50 m
Main airportCancún International Airport (CUN)14 km from centre137 non-stop destinationsKerry Airport (KIR)14 km from centre10 non-stop destinations
Public holidays this year9 days11 days

By the numbers

MeasureCancunKillarney
City population888,79714,412
Museums within 10 km11
UNESCO World Heritage sites within 50 km00
Swim season, months above 21 °C12 monthsNone

Where else could you go?

Every comparison below shares a destination with this one, so you can follow Cancun or Killarney somewhere new.

Browse every destination

Sources

Structured data from Wikidata (CC0). Temperature and rainfall for destinations with no weather station are from the NASA POWER 2001-2020 climatology, derived from MERRA-2. 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. Weather data by Meteostat. Meteorological data provided by NOAA, DWD and others. Tourism statistics from Eurostat, © European Union, reused under CC BY 4.0. 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.