Comparison
MX · Mexico

Greater Mexico City

21,905,000 residents19.43°, -99.13°
CN · People's Republic of China

Nanjing

9,314,685 residents32.06°, 118.78°

Greater Mexico City is about 2× the size of Nanjing by population.

01 · Basics

At a glance

Population
21,905,000
9,314,685
Metro populationno data
Area (km²)
741,000
6,587.02
Density (per km²)no data
Elevation (m)
no data
15
02 · Climate

Weather, month by month

Solid lines are monthly highs, dashed lines are lows (°C).
Greater Mexico City high low Nanjing high low
Greater Mexico City vs Nanjing monthly temperature-5°10°15°20°25°30°35°JFMAMJJASOND
Avg annual temp (°C)
17.3
16.8
Annual rainfall (mm)lower is better
1,107.3leads
1,253.7
Sunny days per yearno data
06 · Vibes

What locals say

Synthesized from upvoted comments on each city's subreddit.
Greater Mexico City

Greater Mexico City feels dense, busy, and deeply layered, with neighborhood-by-neighborhood differences that can change the experience a lot. Daily life often means planning around traffic, long commutes, and crowding, but also having easy access to transit, street life, museums, parks, and an enormous range of food and services. Many residents enjoy the city’s energy and convenience while accepting that noise, pollution, and bureaucratic friction are part of the tradeoff. It can feel overwhelming at first, but for people who like a big-city pace and constant activity, it offers a rich and very lived-in urban environment.

Common complaints
  • Traffic and long commutes4
  • Air pollution and smog3
  • Noise and crowding3
  • Safety and petty theft3
  • Bureaucracy and uneven public services2
Common praises
  • Food variety and quality5
  • Cultural life4
  • Transit and walkable pockets3
  • Neighborhood character3
  • Cost relative to major global capitals2
Nanjing

Nanjing comes across as a big, historically important city that is still easy to move through if you know the metro and the main districts. Daily life seems to revolve around university neighborhoods, coffee shops, language exchanges, and practical errands rather than a huge foreigner scene. People mention good food, pleasant places to bike and wander, and a city that can feel welcoming if you plug into student or expat circles. At the same time, newcomers often say it can be harder to make English-speaking friends here than in some other Chinese cities, and summer heat is a real drag.

Common complaints
  • Hard to build an English-speaking social circle8
  • Summer heat2
  • Foreign-friendly nightlife is limited or scattered3
  • Short-term housing near campuses can be difficult2
  • Dealing with incidents requires evidence and local know-how1
Common praises
  • Friendly locals and openness to language exchange9
  • Strong university and student presence7
  • Good food and coffee spots6
  • Walkable, bike-friendly exploration4
  • Historical and scenic places5

“Go to secco on a Friday night.”

r/Nanjing· 3 votes

“Heyy I am an international student studying in Nanjing . It has been hard making friends who speak English. I would love to join u for a coffee”

r/Nanjing· 1 votes
07 · Culture

Food & nightlife

Greater Mexico City
Food

The food scene is one of the clearest reasons people love living here: street stands, taquerías, markets, casual fondas, bakeries, and destination restaurants all coexist in the same city. You can eat very well on an ordinary budget, and neighborhood food culture matters as much as formal dining. The range is huge, from classic CDMX staples like tacos al pastor and quesadillas to regional Mexican cooking and strong international options in wealthier districts. For many residents, grabbing food out is part of daily life rather than a special occasion.

Nightlife

Nightlife in Greater Mexico City is varied and neighborhood-specific rather than centralized into one uniform scene. Some areas lean toward bars, mezcalerías, live music, and late dinners, while others quiet down early and feel residential at night. The city can stay active very late in selected districts, but getting home safely and cheaply matters, so people often plan around transit, rideshares, or familiar routes. Overall, it is a big-city nightlife scene with plenty of options, but not something that feels effortless everywhere.

Nanjing
Food

The food scene in the Reddit sample feels practical, varied, and neighborhood-based rather than flashy. People ask for budget places, local Chinese food with beer, and even an Iranian restaurant, while one commenter singles out Commune’s Thai salted egg yolk wings as unusually good. Coffee and casual drinks also come up often, which suggests a city where eating out is part of everyday social life. The overall impression is that you can eat well, especially around universities and expat-friendly areas, but you may need local tips to find the best spots.

Nightlife

Nightlife seems modest but usable, with a few known bars and a small foreigner hangout network rather than a huge club scene. One commenter recommends Secco on a Friday night, and others ask about the go-to laowai bar or weekend events like BBQs and magic shows at Finnegans Wake. The vibe appears more after-work beer, live music, and social meetups than late-night spectacle. For many people, nightlife in Nanjing seems tied to meeting friends, language exchange, or a mixed local-international crowd.

08 · Reality check

Weather vs. what locals say

Greater Mexico City
By the numbers

How locals feel

On paper, the weather often looks mild and pleasant, with springlike temperatures for much of the year. Locals, though, tend to talk more about microclimates, dry seasons, rainy-season downpours, and the way air quality can make a nice-temperature day feel less comfortable. Sunshine is common, but so are sudden storms in the wet months and cool evenings at higher elevations. The result is a climate that sounds ideal in statistics but is experienced more through pollution, seasonality, and neighborhood-by-neighborhood variation than by temperature alone.

Nanjing
By the numbers

How locals feel

The weather sentiment is mixed but tilted negative in summer. The city can look beautiful in cherry blossom season, and people clearly enjoy outdoor exploring, biking, and photo walks, but one comment bluntly notes that July and August are not ideal because it gets too hot. That suggests locals and visitors appreciate the seasons, yet summer humidity and heat are memorable enough to affect travel planning. The vibe is that Nanjing’s weather is best enjoyed in spring and autumn, while midsummer is something to endure.

09 · Summary

In short

  • Greater Mexico City is about 2× the size of Nanjing by population.
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