VacationSelector
Big Ben and Westminster Bridge, London
LondonBig Ben and Westminster Bridge
Angkor Wat beyond the palms of the causeway, Siem Reap
Siem ReapAngkor Wat beyond the palms of the causeway

Photos: London by AXP Photography, Pexels License; Siem Reap by allPhoto Bangkok, Pexels License.

London or Siem Reap?

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

  • live music and the arts
  • shopping
  • getting around

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

Choose Siem Reap for

  • prices
  • wellness

What lies behind each score is written up on Siem Reap’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, Siem Reap 5: London leads by 20 points.
Food & drink. London 84, Siem Reap 45: London leads by 39 points.
Culture & sights. London 94, Siem Reap 88: London leads by 6 points.
Nightlife. London 88, Siem Reap 42: London leads by 46 points.
Nature & outdoors. London 57, Siem Reap 40: London leads by 17 points.
Day trips. London 90, Siem Reap 55: London leads by 35 points.
Good for families. London 82, Siem Reap 35: London leads by 47 points.
Getting around. London 85, Siem Reap 30: London leads by 55 points.
Shopping & style. London 95, Siem Reap 38: London leads by 57 points.
Affordability. London 15, Siem Reap 88: Siem Reap leads by 73 points.
Live music & performing arts. London 98, Siem Reap 32: London leads by 66 points.
Wellness & relaxation. London 40, Siem Reap 60: Siem Reap leads by 20 points.
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What lies behind each score is written up on the two cities’ own pages: London and Siem Reap.

Your match

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

London
Best match
71match

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

Siem Reap
47match

Wins on prices and wellness 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
16 hdaylight a day

Siem Reap in July

30 °Cdaytime high
24 °Cnight-time low
197 mmrain in the month
No recordsunshine a day
13 hdaylight a day

Daytime high, °C

0°10°20°30°40°JFMAMJJASOND

Rainfall in the month, mm

050100150200250JFMAMJJASOND
LondonSiem Reap

Where the figures come from

Siem Reap 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.

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). Siem Reap: 2001-2020 normals, NASA POWER reanalysis grid, no weather station within 90 km.

Before you go

MeasureLondonSiem Reap
Official languageEnglishKhmer
CurrencyPound Sterling (GBP)Riel (KHR)
SocketsG230 V, 50 HzACG230 V, 50 Hz
Driving sideLeftRight
Time zoneUTC, UTC+1 in summerUTC+7
Emergency number112 or 999Police 117, ambulance 119, fire 118
Elevation4 m18 m
Main airportLondon Heathrow Airport (LHR)23 km from centre224 non-stop destinationsSiem Reap-Angkor International Airport (SAI)39 km from centre14 non-stop destinations
Public holidays this year8 days21 days

By the numbers

MeasureLondonSiem Reap
City population8,799,728147,866
People per km²5,598-
Museums within 10 km2166
UNESCO World Heritage sites within 50 km41

Where else could you go?

Every comparison below shares a destination with this one, so you can follow London or Siem Reap 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. Temperature and rainfall for destinations with no weather station are from the NASA POWER 2001-2020 climatology, derived from MERRA-2. 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.