Climate
Hanoi logs 121 sunny days a year to Phan Thiết's 252 — Phan Thiết wins by 131. Hanoi also leads on outdoor-dinner months by 2.
Hanoi
Feels-like °C
Dinner outside
Phan Thiết
Feels-like °C
Dinner outside
Air Quality
Hanoi averages 35.4 µg/m³ (very unhealthy) PM2.5 annually versus Phan Thiết's 16.8 µg/m³ (sensitive-groups) — Phan Thiết breathes ~53% cleaner air (18.6 µg/m³ lower).
Hanoi
Phan Thiết
PM2.5 annual average
WHO classification
City Scale
Both maps at the same real-world scale — 1 cm on either map is the same distance.
Hanoi (5.0M) and Phan Thiết (212K) are 23x in population — Hanoi is the larger metro, Phan Thiết the smaller; on land area Hanoi spans roughly 17x more ground.
Hanoi is roughly 20x the scale of Phan Thiết
Combined population & area comparison
HanoiPhan ThiếtCity Scale Rankings
Hanoi5.0M23xPhan Thiết212K1xHanoi925 km²17xPhan Thiết53 km²1xHanoi
Phan Thiết
Who Thrives Here
Phan Thiết is the stronger fit for the clean air seeker. Both cities work well for the winter escapist.
Also compared
SingaporeFrequently asked about Hanoi vs Phan Thiết
▶How does the climate compare between Hanoi and Phan Thiết?
▶Should I move to Hanoi or Phan Thiết?
The best city depends on what matters to you
This comparison shows how Hanoi and Phan Thiết stack up on the data. But your climate preferences, budget, career needs, and lifestyle priorities can shift the picture entirely. A personalized diagnostic finds what fits your life.
Take the free diagnostic10 minutes, no account needed