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One page of sourced numbers per city: what a day costs, what the travel advisory says, and which months score best on the weather.

Data: GeoNames, Open-Meteo, World Bank, US State Department, UK FCDO.

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© 2026 Travel City Index. Every number on this site comes from a dataset named on the page that shows it.
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Thailand · South Korea

Bangkok vs Seoul: cost, safety and weather compared (2026)

Every figure below comes from the same datasets for both cities, so the two columns are comparable.

Bangkok and Seoul compared on cost, safety, weather and size
BangkokThailandSeoulSouth Korea
Daily cost, per personestimate
Budget$35$65
Mid-range$85$155
Luxury$180$335
Price level0.31× US (2025)0.57× US (2025)
US advisoryLevel 1Level 1
Best monthsJan, Feb and DecJun and Sep
Annual rain1,677 mm1,469 mm
Average high32.6 °C17.4 °C
Population5.1M10.3M
Time zoneAsia/BangkokAsia/Seoul

The short answer

Bangkok is about 45 % cheaper per day than Seoul, $85 against $155 (mid-range estimate). Both carry a US Level 1 advisory. In September, the daily average is 28 °C in Bangkok and 23 °C in Seoul.

Keep reading

City overviews

  • Bangkok overview
  • Seoul overview

Cost and safety in detail

  • Bangkok trip cost
  • Is Bangkok safe?
  • Seoul trip cost
  • Is Seoul safe?

Where they rank

  • Cheapest cities in Asia
  • Safest cities in Asia

Countries

  • All cities in Thailand
  • All cities in South Korea

Sources

  • GeoNames city database — CC BY 4.0, fetched September 14, 2026
  • Open-Meteo climate archive — CC BY 4.0, fetched September 21, 2026
  • World Bank price level and exchange rate — CC BY 4.0, data year 2025
  • US State Department travel advisories — public domain, fetched September 21, 2026

Dates are the most recent fetch across the cities on this page. Every sentence here is generated from the data by rule, with no AI writing; the formulas are public.