Comparison
CN · People's Republic of China

Chengdu

20,937,757 residents30.66°, 104.06°
KR · South Korea

Seoul

9,668,465 residents37.56°, 126.99°

Chengdu is much warmer than Seoul; Chengdu is about 2× the size of Seoul by population.

01 · Basics

At a glance

Population
20,937,757
9,668,465
Metro populationno data
Area (km²)
14,378
605.25
Density (per km²)no data
Elevation (m)
500
38
02 · Climate

Weather, month by month

Solid lines are monthly highs, dashed lines are lows (°C).
Chengdu high low Seoul high low
Chengdu vs Seoul monthly temperature-10°-5°10°15°20°25°30°35°JFMAMJJASOND
Avg annual temp (°C)
17.8
12.2
Annual rainfall (mm)lower is better
1,050.2leads
1,210.5
Sunny days per yearno data
03 · Cost

Cost of living

Benchmarked against New York City at 100. Higher = more expensive.
Rent · 1BR, city centerlower is better
no data
1,284,468.09
Rent · 1BR, outside centerlower is better
no data
854,872.34
Rent · 3BR, city centerlower is better
no data
3,061,382.98
Groceries indexno data
Inexpensive meallower is better
no data
13,000
Midrange meal for twolower is better
no data
90,000
Transit · monthly passlower is better
no data
65,000
Utilities per monthlower is better
no data
230,981.29
06 · Vibes

What locals say

Synthesized from upvoted comments on each city's subreddit.
Chengdu

Chengdu comes across as a huge, food-first city that still feels surprisingly social and laid-back in the day-to-day. People talk about it as a place where you can spend hours eating, wandering parks, browsing markets, and meeting friends over tea or drinks rather than rushing from one landmark to another. It has a visible foreigner/expat scene, plenty of student energy, and lots of small-interest communities from skate parks to D&D to volunteering, but finding your people can still take some effort. The tradeoff is that some everyday life gets filtered through a big-city Chinese system—apps, WeChat groups, Didi, and navigating neighborhoods—while the city’s size and humidity can make the weather and logistics feel more tiring than the travel brochures suggest.

Common complaints
  • Hard to make friends / social circles feel segmented5
  • Nightlife skews young or hard to navigate4
  • Weather and seasonal discomfort4
  • Food options for non-Sichuan tastes can require effort3
  • Navigation / airport / arrival friction3
Common praises
  • Food is the main event8
  • Easy to find hobbies and niche communities5
  • Strong expat/foreigner ecosystem5
  • Parks, slow wandering, and urban leisure4
  • Shopping and markets3

“We’re gonna visit Chengdu soon and are huge fans of Sichuan cuisine. We would love to get some recommendations for authentic hot pot places (preferably Chongqing version) or other restaurants or foods you’d recommend us to try.”

r/Chengdu· 8 votes

“Have been in Chengdu for a couple of days now and really loving it. I’ve been out and about by the bridge and headed to Lan Kwai Fong afterwards wanting to dance - but literally everyone around there was sub 20 if I was guessing.”

r/Chengdu· 11 votes
Seoul

Living in Seoul feels like being in a city that runs on speed, density, and constant contrast. You can move from old neighborhoods and temple quiet to neon districts, massive malls, and subway-heavy daily routines in the same afternoon, and people seem to normalize that mix. The city is praised for being safe, efficient, and visually striking, but day-to-day life also carries pressure: high costs in some areas, language friction for foreigners, tourist fatigue in busy districts, and a culture that can feel strict about rules and manners. For many residents and long-term visitors, Seoul is exciting and convenient, but it can also feel impersonal, exhausting, and highly competitive under the surface.

Common complaints
  • Tourist fatigue / brusque service3
  • Language friction and navigation hassles3
  • Air pollution / fine dust2
  • Heat, mosquitoes, and seasonal discomfort2
  • Pressure and conformity2
Common praises
  • Safety and cleanliness4
  • Convenience and transit4
  • Food culture5
  • Beauty and atmosphere5
  • Helpful kindness from ordinary people3

“Just got back from my trip to South Korea and wow… every single day felt worth it. It’s definitely not the cheapest destination, but honestly, you get what you pay for. Clean streets, safe everywhere you go, amazing transportation, and the food? Unreal.”

r/travel· 1232 votes

“Mind you, it's not the message but the tone of the message and the general attitude. Seems they are tired of tourists there. Not sure we would like to come back.”

r/korea· 2063 votes
07 · Culture

Food & nightlife

Chengdu
Food

The food scene is the clearest daily-life superpower here. Redditors talk about stuffing themselves with Sichuan food, hunting for hot pot, street food, and neighborhood restaurants, and using specific districts like Yulin as food bases. At the same time, there is enough variety that people also ask about coffee, western food, vegetarian options, Cantonese food, pizza, and non-Sichuan restaurants, so the city is not just one-note mala. Overall, Chengdu reads as a city where food is both a civic identity and a practical social activity: people meet to eat, wander to eat, and choose neighborhoods partly by where they can eat well.

Nightlife

Nightlife seems active, but it is not described as a single obvious scene. People ask where to go for bars, hip-hop, R&B clubs, expat-friendly clubs, and age-appropriate nightlife, which suggests the options are there but spread across different pockets and can be hard to decode without local help. Lan Kwai Fong comes up as a known zone, yet one visitor found it full of very young crowds. The overall vibe is more ‘find the right bar, club, or live house for your subgroup’ than a universal pub culture.

Seoul
Food

Seoul’s food scene comes across as dense, affordable in the street-food sense, and always on. People talk about kimbap, salt-grilled pork, gomtang, anju with soju, convenience-store snacks, and restaurants that stay open 24/7, plus the city’s comfort food culture around cafes, pojangmacha tents, and late-night eats. It is also practical and hyper-local: natives rely on Naver Maps, local reviews, and neighborhood knowledge to find good spots, while foreigners often need help ordering or understanding what they are seeing. The overall feeling is that you can eat extremely well here without much planning, as long as you can navigate the language and neighborhood conventions.

Nightlife

Nightlife in Seoul seems large, varied, and very neighborhood-specific: Itaewon for late-night improvisation and international crowds, Hongdae for bars and music-adjacent energy, Gangnam for organized meetups and upscale socializing, and Euljiro for chaotic tent bars and old-school drinking. People describe a city where you can end up sitting in a pojangmacha with salarymen, drinking soju and being fed anju by strangers, or looking for a hotel at 1 a.m. after a plan falls through. The city also has a strong after-hours infrastructure—PC bangs, 24-hour restaurants, jjimjilbangs, hotel bars, and all-night districts—so nightlife feels less like a single strip and more like a system. At the same time, some posts suggest that in tourist-heavy zones the vibe can be impatient or transactional, especially late at night.

08 · Reality check

Weather vs. what locals say

Chengdu
By the numbers

How locals feel

The weather sentiment is mixed-to-negative on comfort, even when people are not talking about extremes. In the posts, winter is often framed as something people plan around, with visitors checking whether 6°C-ish days will be a dealbreaker, while one expat says they have been getting repeated respiratory infections after moving from Wisconsin. That said, the concern is more about dampness, seasonal chill, and general body adaptation than about dramatic cold. So the stats may look manageable on paper, but locals and long-term visitors seem to treat the climate as something that can wear on you over time.

Seoul
By the numbers

How locals feel

On paper, the weather looks dramatic and seasonal—snow, blossoms, rain, humid summers, crisp winters—and that spectacle is part of how people describe the city. In practice, locals seem to talk about weather in terms of inconvenience and survival: summer heat that makes a simple walk feel like punishment, mosquitoes that keep getting worse into the season, winter cold that can be beautiful but brutal, and fine dust days that turn into arguments about where the pollution comes from. The positive side is that the seasons are visible and emotionally vivid; the negative side is that Seoul’s weather is often something you work around rather than enjoy. People love photographing it, but they also give each other practical warnings about AC, repellent, and masks.

09 · Summary

In short

  • Chengdu is much warmer than Seoul.
  • Chengdu is about 2× the size of Seoul by population.
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