VacationSelector
Ross Castle on Lough Leane, Killarney
KillarneyRoss Castle on Lough Leane
The Metropolitan Cathedral of San Jose, San Jose, Costa Rica
San Jose, Costa RicaThe Metropolitan Cathedral of San Jose

Photos: Killarney by NicholasH, CC BY-SA 4.0, cropped; San Jose, Costa Rica by Bernard Gagnon, CC0.

Killarney or San Jose, Costa Rica?

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 Killarney for

  • getting around
  • wellness
  • beaches

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

Choose San Jose, Costa Rica for

  • prices
  • shopping
  • culture and sights

What lies behind each score is written up on San Jose, Costa Rica’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. Killarney 22, San Jose, Costa Rica 12: Killarney leads by 10 points.
Food & drink. Killarney 33, San Jose, Costa Rica 42: San Jose, Costa Rica leads by 9 points.
Culture & sights. Killarney 28, San Jose, Costa Rica 38: San Jose, Costa Rica leads by 10 points.
Nightlife. Killarney 32, San Jose, Costa Rica 40: San Jose, Costa Rica leads by 8 points.
Nature & outdoors. Killarney 82, San Jose, Costa Rica 78: Killarney leads by 4 points.
Day trips. Killarney 58, San Jose, Costa Rica 52: Killarney leads by 6 points.
Good for families. Killarney 42, San Jose, Costa Rica 44: San Jose, Costa Rica leads by 2 points.
Getting around. Killarney 47, San Jose, Costa Rica 30: Killarney leads by 17 points.
Shopping & style. Killarney 22, San Jose, Costa Rica 36: San Jose, Costa Rica leads by 14 points.
Affordability. Killarney 35, San Jose, Costa Rica 54: San Jose, Costa Rica leads by 19 points.
Live music & performing arts. Killarney 35, San Jose, Costa Rica 38: San Jose, Costa Rica leads by 3 points.
Wellness & relaxation. Killarney 42, San Jose, Costa Rica 28: Killarney leads by 14 points.
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What lies behind each score is written up on the two cities’ own pages: Killarney and San Jose, Costa Rica.

Your match

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

Too close to call, 1 point apart

Killarney
40match

Wins on getting around and wellness with your weighting.

San Jose, Costa Rica
41match

Wins on prices and shopping with your weighting.

What matters to you?

When should you go?

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

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

San Jose, Costa Rica in July

28 °Cdaytime high
19 °Cnight-time low
173 mmrain in the month
No recordsunshine a day
No seasea
13 hdaylight a day

Daytime high, °C

0°10°20°30°40°JFMAMJJASOND

Rainfall in the month, mm

0100200300400JFMAMJJASOND
KillarneySan Jose, Costa Rica

Where the figures come from

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.

San Jose, Costa Rica's station stands 241 m below the city centre, so the centre is likely a little cooler than the figures say.

Temperature and rainfall are climate normals, averaged over the years shown. Killarney: 1991-2020 normals, Valentia Observatory (52.7 km from centre). San Jose, Costa Rica: 1991-2020 normals, Juan Santamaria (16.8 km from centre).

Before you go

MeasureKillarneySan Jose, Costa Rica
Official languageEnglish, IrishSpanish
CurrencyEuro (EUR)Costa Rican Colon (CRC)
SocketsG230 V, 50 HzAB120 V, 60 Hz
Driving sideLeftRight
Time zoneUTC, UTC+1 in summerUTC-6
Emergency number112911
Elevation50 m1,161 m
Main airportKerry Airport (KIR)14 km from centre10 non-stop destinationsJuan Santamaría International Airport (SJO)16 km from centre49 non-stop destinations
Public holidays this year11 days11 days

By the numbers

MeasureKillarneySan Jose, Costa Rica
City population14,412335,007
People per km²-7,511
Museums within 10 km19
UNESCO World Heritage sites within 50 km00
Swim season, months above 21 °CNone-

Where else could you go?

Every comparison below shares a destination with this one, so you can follow Killarney or San Jose, Costa Rica 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). Tourism statistics from Eurostat, © European Union, reused under CC BY 4.0. Public holidays from Nager.Date (MIT). 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. Exchange rates via Frankfurter, based on European Central Bank reference rates.

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 2026-11-01. Daily budgets are estimates from country price levels.