Comparison
JP · Japan

Greater Tokyo Area

37,900,000 residents35.69°, 139.69°
CN · People's Republic of China

Nanjing

9,314,685 residents32.06°, 118.78°

Greater Tokyo Area is about 4Ă— the size of Nanjing by population; Greater Tokyo Area is noticeably wetter than Nanjing.

01 · Basics

At a glance

Population
37,900,000
9,314,685
Metro populationno data
Area (km²)
13,500
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 Tokyo Area high low Nanjing high low
Greater Tokyo Area vs Nanjing monthly temperature-5°0°5°10°15°20°25°30°35°JFMAMJJASOND
Avg annual temp (°C)
15.8
16.8
Annual rainfall (mm)lower is better
1,588.9
1,253.7leads
Sunny days per yearno data
06 · Vibes

What locals say

Synthesized from upvoted comments on each city's subreddit.
Greater Tokyo Area

Greater Tokyo feels densely organized and relentlessly functional: trains are frequent, neighborhoods are distinct, and most daily errands can be handled without a car. Life is convenient but busy, with a constant tradeoff between tiny living spaces, long commutes, and the payoff of having almost anything you need within reach. The city rewards people who enjoy structure, order, and variety, but it can feel impersonal and expensive if you want room, quiet, or casual spontaneity. For many residents, the appeal is less about a single downtown and more about choosing a neighborhood that matches your pace, budget, and routine.

Common complaints
  • High housing costs and small apartments5
  • Crowding and commuter pressure4
  • Long commutes despite good transit4
  • Language barriers for non-Japanese speakers3
  • Humidity and uncomfortable summers3
Common praises
  • Exceptional transit network5
  • Convenience and neighborhood completeness5
  • Safety and general order4
  • Food variety and quality4
  • Varied neighborhoods and amenities3
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 Tokyo Area
Food

The food scene is one of Greater Tokyo’s strongest daily-life advantages: you can eat cheaply and well almost anywhere, and the quality floor is unusually high. Ordinary meals are easy to find at train-station shops, small family restaurants, ramen counters, curry shops, izakaya, bakeries, and department-store food halls, while the city also has an unmatched spread of specialty places, from tiny sushi bars to very formal kaiseki. Seasonal ingredients matter, and even convenience-store food is often better than outsiders expect. The main practical challenge is not finding good food, but choosing among an overwhelming number of options and, in some neighborhoods, dealing with lines or limited seating.

Nightlife

Nightlife in Greater Tokyo is highly neighborhood-specific rather than centered on one all-night district. Some areas are packed with izakaya, karaoke, small bars, clubs, and late ramen shops, while many residential neighborhoods become quiet surprisingly early. The scene can feel more polished and segmented than chaotic: after-work drinking, group gatherings, and train-based trips home are common, and people often plan the evening around the last train. For residents, nightlife is plentiful if you know where to go, but it is not always spontaneous, and late nights can be constrained by transit schedules and the cost of frequent drinking out.

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 Tokyo Area
By the numbers

—

How locals feel

On paper, the weather looks manageable: winter is usually not extreme, and the city avoids the kind of severe cold or snow that dominates daily life in some other capitals. In practice, locals often talk much more about the oppressive summer—hot, sticky, and exhausting—and about how the humidity can make even short walks unpleasant. Rainy periods, typhoon season, and sudden downpours also affect routines more than the annual averages suggest. The general sentiment is that Tokyo’s climate is livable, but summer and humidity are the seasons people complain about most.

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 Tokyo Area is about 4Ă— the size of Nanjing by population.
  • Greater Tokyo Area is noticeably wetter than Nanjing.
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