Climate
Haiphong logs 117 hot days a year to Hanoi's 168 — Haiphong wins by 51. Haiphong also leads on sunny days by 34.
Haiphong
Feels-like °C
Dinner outside
Hanoi
Feels-like °C
Dinner outside
Air Quality
Haiphong averages 25.4 µg/m³ (unhealthy) PM2.5 annually versus Hanoi's 35.4 µg/m³ (very unhealthy) — Haiphong breathes ~28% cleaner air (10.0 µg/m³ lower).
Haiphong
Hanoi
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.
Haiphong (922K) and Hanoi (5.0M) are 5.4x in population — Hanoi is the larger metro, Haiphong the smaller; on land area Hanoi spans roughly 4.2x more ground.
Hanoi is roughly 4.7x the scale of Haiphong
Combined population & area comparison
HanoiHaiphongCity Scale Rankings
Hanoi5.0M5.4xHaiphong922K1xHanoi925 km²4.2xHaiphong221 km²1xHaiphong
Hanoi
Who Thrives Here
Both cities work well for the winter escapist.
Frequently asked about Haiphong vs Hanoi
▶How does the climate compare between Haiphong and Hanoi?
▶Should I move to Haiphong or Hanoi?
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