VacationSelector
Big Ben and Westminster Bridge, London
LondonBig Ben and Westminster Bridge
A cobbled street of painted houses in Old San Juan, San Juan
San JuanA cobbled street of painted houses in Old San Juan

Photos: London by AXP Photography, Pexels License; San Juan by Mohan Nannapaneni, Pexels License.

London or San Juan?

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 London for

  • getting around
  • shopping
  • live music and the arts

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

Choose San Juan for

  • beaches
  • prices
  • nature and the outdoors

What lies behind each score is written up on San Juan’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. London 25, San Juan 84: San Juan leads by 59 points.
Food & drink. London 84, San Juan 66: London leads by 18 points.
Culture & sights. London 94, San Juan 64: London leads by 30 points.
Nightlife. London 88, San Juan 70: London leads by 18 points.
Nature & outdoors. London 57, San Juan 74: San Juan leads by 17 points.
Day trips. London 90, San Juan 52: London leads by 38 points.
Good for families. London 82, San Juan 58: London leads by 24 points.
Getting around. London 85, San Juan 38: London leads by 47 points.
Shopping & style. London 95, San Juan 50: London leads by 45 points.
Affordability. London 15, San Juan 38: San Juan leads by 23 points.
Live music & performing arts. London 98, San Juan 55: London leads by 43 points.
Wellness & relaxation. London and San Juan are level on 40.
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What lies behind each score is written up on the two cities’ own pages: London and San Juan.

Your match

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

London
Best match
71match

Wins on getting around and shopping with your weighting.

San Juan
57match

Wins on beaches 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.

London in July

23 °Cdaytime high
15 °Cnight-time low
46 mmrain in the month
7 hsunshine a day
No seasea
16 hdaylight a day

San Juan in July

32 °Cdaytime high
25 °Cnight-time low
153 mmrain in the month
9 hsunshine a day
28 °Csea
13 hdaylight a day

Daytime high, °C

0°10°20°30°40°JFMAMJJASOND

Rainfall in the month, mm

050100150200JFMAMJJASOND
LondonSan Juan

Temperature and rainfall are climate normals, averaged over the years shown. London: 1992-2020 (sunshine 1991-2020, rainfall 1991-2020) normals, London Weather Centre (1.3 km from centre). San Juan: 1991-2020 normals, San Juan / Int., Puerto Rico (12.8 km from centre).

Before you go

MeasureLondonSan Juan
Official languageEnglishSpanish, English
CurrencyPound Sterling (GBP)US Dollar (USD)
SocketsG230 V, 50 HzAB120 V, 60 Hz
Driving sideLeftRight
Time zoneUTC, UTC+1 in summerUTC-4
Emergency number112 or 999911
Elevation4 m3 m
Main airportLondon Heathrow Airport (LHR)23 km from centre224 non-stop destinationsLuis Munoz Marin International Airport (SJU)12 km from centre59 non-stop destinations
Public holidays this year8 days21 days

By the numbers

MeasureLondonSan Juan
City population8,799,728342,259
People per km²5,5982,847
Museums within 10 km21618
UNESCO World Heritage sites within 50 km41
Swim season, months above 21 °C-12 months

Where else could you go?

Every comparison below shares a destination with this one, so you can follow London or San Juan 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. 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. Sea surface temperature from NOAA OISST v2.1, NOAA Physical Sciences Laboratory. 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.