Comparison
CN · People's Republic of China

Chengdu

20,937,757 residents30.66°, 104.06°
IR · Iran

Tehran

8,693,706 residents35.69°, 51.39°

Chengdu is noticeably wetter than Tehran; Chengdu is about 2× the size of Tehran by population.

01 · Basics

At a glance

Population
20,937,757
8,693,706
Metro populationno data
Area (km²)
14,378
686
Density (per km²)no data
Elevation (m)
500
1,179
02 · Climate

Weather, month by month

Solid lines are monthly highs, dashed lines are lows (°C).
Chengdu high low Tehran high low
Chengdu vs Tehran monthly temperature-5°10°15°20°25°30°35°40°JFMAMJJASOND
Avg annual temp (°C)
17.8
17.9
Annual rainfall (mm)lower is better
1,050.2
301.7leads
Sunny days per yearno data
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
Tehran

Living in Tehran sounds like living in a huge, crowded capital that is equal parts ordinary city life and political tension. The city has the usual big-city perks—museums, parks, bazaars, restaurants, and mountain views—but Reddit threads from the past year are dominated by war scares, protests, evacuations, water cuts, and disrupted communications. Day to day, it comes across as a place where people still commute, shop, run, meet friends, and plan trips, but they do so with a constant background awareness of instability. The clearest portrait is of a city with deep cultural life and normal routines, yet one where those routines can be interrupted by shortages, unrest, and security fears.

Common complaints
  • War, strikes, and security anxiety5
  • Water shortages and utility stress4
  • Protests and political repression4
  • Communication and mobility disruptions3
  • Strict social rules / uncertainty around enforcement2
Common praises
  • Cosmopolitan scale and amenities3
  • Museums, palaces, and historic landmarks4
  • Parks and mountain access3
  • Running and outdoor recreation1
  • Friendly, warm people1

“The have vast underground bunkers built, probably he is not in Tehran . Most likely a smaller more discreet town . I’ve heard Ghom or Semnan , but probably many more possibilities. Mosaad agents probably know and are following his every move , corruption in the regime is rampant and spying is a dangerous but highly common and lucrative business.”

r/iran· 3 votes

“Trying to leave Tehran”

r/iran· 27 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.

Tehran
Food

Tehran’s food scene reads as broad and urban rather than narrowly local: visitors ask about fine dining, cafes, and practical restaurant recommendations, while itineraries center on the Grand Bazaar, central mosque area, and neighborhood markets like Tajrish. That suggests an everyday food culture that mixes market shopping, casual eateries, and higher-end city dining. The public conversation does not dwell much on signature dishes, but it does imply that eating out is a normal part of city life, with enough variety for both budget travelers and luxury visitors.

Nightlife

The nightlife picture is thin in the source material, but what comes through is not a club-heavy scene so much as an evening city culture shaped by constraints. One itinerary specifically includes Darband at night, which hints at dining, strolling, and mountain-side socializing rather than bars or late-night partying. Overall, Tehran seems to have after-dark life, but it is likely more centered on cafes, restaurants, and public gathering spots than on open nightlife in the Western sense.

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.

Tehran
By the numbers

How locals feel

Weather is mentioned indirectly rather than described in detail, but the city’s climate seems to be understood less as a pleasant talking point and more through its consequences: drought, water shortages, and reservoir concerns. The available posts frame the environment as dry and stressed, not as a day-to-day comfort issue like rain or snow. At the same time, Tehran’s mountain setting and public parks suggest locals still value outdoor air and elevation as part of the city’s appeal. In short, the weather is less celebrated than endured, and recent discussion centers on scarcity rather than beauty.

09 · Summary

In short

  • Chengdu is noticeably wetter than Tehran.
  • Chengdu is about 2× the size of Tehran by population.
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