VacationSelector
The Esplanade boardwalk and its palms, Cairns
CairnsThe Esplanade boardwalk and its palms
The Botanical Building, Balboa Park, San Diego
San DiegoThe Botanical Building, Balboa Park

Photos: Cairns by Donaldytong, Public domain; San Diego by Bernard Gagnon, CC BY-SA 3.0, cropped.

Cairns or San Diego?

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 Cairns for

  • nature and the outdoors
  • prices
  • getting around

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

Choose San Diego for

  • live music and the arts
  • families
  • culture and sights

What lies behind each score is written up on San Diego’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. Cairns 62, San Diego 72: San Diego leads by 10 points.
Food & drink. Cairns 40, San Diego 62: San Diego leads by 22 points.
Culture & sights. Cairns 22, San Diego 50: San Diego leads by 28 points.
Nightlife. Cairns 42, San Diego 48: San Diego leads by 6 points.
Nature & outdoors. Cairns 95, San Diego 77: Cairns leads by 18 points.
Day trips. Cairns 45, San Diego 60: San Diego leads by 15 points.
Good for families. Cairns 66, San Diego 96: San Diego leads by 30 points.
Getting around. Cairns 45, San Diego 38: Cairns leads by 7 points.
Shopping & style. Cairns 28, San Diego 44: San Diego leads by 16 points.
Affordability. Cairns 35, San Diego 26: Cairns leads by 9 points.
Live music & performing arts. Cairns 22, San Diego 56: San Diego leads by 34 points.
Wellness & relaxation. Cairns and San Diego are level on 45.
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What lies behind each score is written up on the two cities’ own pages: Cairns and San Diego.

Your match

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

Cairns
46match

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

San Diego
Best match
56match

Wins on live music and the arts and families with your weighting.

What matters to you?

When should you go?

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

Cairns in July

24 °Cdaytime high
20 °Cnight-time low
30 mmrain in the month
24 °Csea
11 hdaylight a day

San Diego in July

24 °Cdaytime high
19 °Cnight-time low
2 mmrain in the month
20 °Csea
14 hdaylight a day

Daytime high, °C

0°10°20°30°40°JFMAMJJASOND

Rainfall in the month, mm

0200400600JFMAMJJASOND
CairnsSan Diego

Where the figures come from

Cairns's temperatures are measured 27 km from the centre, at Green Island Aws.

Cairns 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. Cairns: 1993-2010 (rainfall 1991-2020) normals, Green Island Aws (27 km from centre). San Diego: 1991-2020 normals, San Diego International Airport (2.8 km from centre).

Before you go

MeasureCairnsSan Diego
Official languageEnglish-
CurrencyAustralian Dollar (AUD)US Dollar (USD)
SocketsI230 V, 50 HzAB120 V, 60 Hz
Driving sideLeftRight
Time zoneUTC+10UTC-8, UTC-7 in summer
Emergency number000911
Elevation7 m129 m
Main airportCairns International Airport (CNS)6 km from centre32 non-stop destinationsSan Diego International Airport (SAN)3 km from centre87 non-stop destinations
Public holidays this year11 days13 days

By the numbers

MeasureCairnsSan Diego
City population146,7781,386,932
People per km²3011,438
Museums within 10 km126
UNESCO World Heritage sites within 50 km10
Swim season, months above 21 °C12 months1 month

Where else could you go?

Every comparison below shares a destination with this one, so you can follow Cairns or San Diego 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 2026-11-01. Daily budgets are estimates from country price levels.