Comparison
TR · Turkey

Istanbul

15,655,924 residents41.01°, 28.96°
KR · South Korea

Seoul

9,668,465 residents37.56°, 126.99°

Istanbul is slightly warmer than Seoul; Istanbul is noticeably drier than Seoul.

01 · Basics

At a glance

Population
15,655,924
9,668,465
Metro populationno data
Area (km²)
5,343
605.25
Density (per km²)no data
Elevation (m)
100
38
02 · Climate

Weather, month by month

Solid lines are monthly highs, dashed lines are lows (°C).
Istanbul high low Seoul high low
Istanbul vs Seoul monthly temperature-10°-5°10°15°20°25°30°35°JFMAMJJASOND
Avg annual temp (°C)
15.4
12.2
Annual rainfall (mm)lower is better
743.4leads
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.
Istanbul

Living in Istanbul means daily life is layered with history, congestion, and constant visual drama. People who live here seem to move between beautiful waterfronts, old neighborhoods, crowded transit, and a cityscape that many both love and complain is being overbuilt. The city feels energetic and sociable, with a lot of casual help from strangers, but also prone to friction around traffic, taxis, crowds, and occasional safety concerns. At its best, it feels like a place where there is always something to see, eat, or photograph; at its worst, it can be exhausting, loud, and messy.

Common complaints
  • Traffic, taxis, and transit friction4
  • Overdevelopment / ugly new buildings3
  • Crowding in tourist and transport areas3
  • Safety and harassment concerns3
  • Earthquake anxiety and city vulnerability2
Common praises
  • Beautiful scenery and waterfront views6
  • Cats and animal-friendly street life4
  • Friendly, helpful locals4
  • Energy and vibrancy4
  • Food quality and variety4

“there is always something new to experience here. and there are always new ways to capture beautiful pictures of the city”

r/istanbul· 1654 votes

“Great city , ruined by taxis behavior”

r/istanbul· 21 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

Istanbul
Food

Istanbul’s food scene comes across as abundant, cheap-to-midrange, and hard to stop sampling. Posts mention iskender kebap, kokoreç sandwiches, baklava, lokum, künefe, kabak tatlısı, and endless tea breaks, with many visitors leaving full and slightly overwhelmed. Neighborhood food culture seems very local and specific: people name particular places in Kadıköy or random street-side snacks rather than talking about polished fine dining. The tone suggests that eating here is part of daily rhythm, not just a special outing, and that even short trips revolve around trying one more dish.

Nightlife

Nightlife seems energetic and late-running rather than sleek or orderly. One recurring note is that the city still feels vibrant at 2 a.m., with people praising the chaos and energy instead of expecting quiet, controlled evenings. The mood appears mixed: lively districts like Kadıköy and Taksim draw crowds, street life, and photos, but the same places can also generate complaints about disorder, harassment, and general intensity. Overall, nightlife reads as social, spontaneous, and very urban, with more emphasis on hanging out, eating, walking, and people-watching than on a single club scene.

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

Istanbul
By the numbers

How locals feel

The weather is described less in statistics and more through atmosphere. Visitors mention cold, cloudy, rainy stretches that do not stop them from enjoying the city, and the Bosphorus and blue water are repeatedly linked to a sense of freshness and relief. Rather than focusing on heat or temperature averages, people describe how weather changes the mood of the city: gray days can feel dramatic, while clear dawns and water views make Istanbul seem bright and alive. The overall sentiment is that the city’s weather is variable, but the scenery often compensates.

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

  • Istanbul is slightly warmer than Seoul.
  • Istanbul is noticeably drier than Seoul.
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