VacationSelector
The Botanical Building, Balboa Park, San Diego
San DiegoThe Botanical Building, Balboa Park
The Bell Tower of Xi'an under a blue sky, Xi'an
Xi'anThe Bell Tower of Xi'an under a blue sky

Photos: San Diego by Bernard Gagnon, CC BY-SA 3.0, cropped; Xi'an by xiquinhosilva, CC BY 2.0, cropped.

San Diego or Xi'an?

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 San Diego for

  • beaches
  • families
  • live music and the arts

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

Choose Xi'an for

  • prices
  • culture and sights
  • getting around

What lies behind each score is written up on Xi'an’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. San Diego 72, Xi'an 4: San Diego leads by 68 points.
Food & drink. San Diego 62, Xi'an 70: Xi'an leads by 8 points.
Culture & sights. San Diego 50, Xi'an 81: Xi'an leads by 31 points.
Nightlife. San Diego 48, Xi'an 42: San Diego leads by 6 points.
Nature & outdoors. San Diego 77, Xi'an 62: San Diego leads by 15 points.
Day trips. San Diego 60, Xi'an 80: Xi'an leads by 20 points.
Good for families. San Diego 96, Xi'an 48: San Diego leads by 48 points.
Getting around. San Diego 38, Xi'an 66: Xi'an leads by 28 points.
Shopping & style. San Diego 44, Xi'an 50: Xi'an leads by 6 points.
Affordability. San Diego 26, Xi'an 80: Xi'an leads by 54 points.
Live music & performing arts. San Diego 56, Xi'an 40: San Diego leads by 16 points.
Wellness & relaxation. San Diego 45, Xi'an 40: San Diego leads by 5 points.
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What lies behind each score is written up on the two cities’ own pages: San Diego and Xi'an.

Your match

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

Too close to call, 1 point apart

San Diego
56match

Wins on beaches and families with your weighting.

Xi'an
55match

Wins on prices and culture and sights with your weighting.

What matters to you?

When should you go?

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

San Diego in July

24 °Cdaytime high
19 °Cnight-time low
2 mmrain in the month
No recordsunshine a day
20 °Csea
14 hdaylight a day

Xi'an in July

33 °Cdaytime high
23 °Cnight-time low
96 mmrain in the month
6 hsunshine a day
No seasea
14 hdaylight a day

Daytime high, °C

0°10°20°30°40°JFMAMJJASOND

Rainfall in the month, mm

020406080100JFMAMJJASOND
San DiegoXi'an

Temperature and rainfall are climate normals, averaged over the years shown. San Diego: 1991-2020 normals, San Diego International Airport (2.8 km from centre). Xi'an: 1991-2020 normals, Xi'An (4.4 km from centre).

Before you go

MeasureSan DiegoXi'an
Official language-Putonghua
CurrencyUS Dollar (USD)Yuan Renminbi (CNY)
SocketsAB120 V, 60 HzACI220 V, 50 Hz
Driving sideRightRight
Time zoneUTC-8, UTC-7 in summerUTC+8
Emergency number911Police 110, ambulance 120, fire 119
Elevation129 m405 m
Main airportSan Diego International Airport (SAN)3 km from centre87 non-stop destinationsXi'an Xianyang International Airport (XIY)26 km from centre178 non-stop destinations
Public holidays this year13 days6 days

By the numbers

MeasureSan DiegoXi'an
City population1,386,93212,952,907
People per km²1,4381,283
Museums within 10 km269
UNESCO World Heritage sites within 50 km02
Swim season, months above 21 °C1 month-

Where else could you go?

Every comparison below shares a destination with this one, so you can follow San Diego or Xi'an 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.