⚖️ City comparison

Chiang Mai vs Hanoi

Chiang Mai (Thailand) and Hanoi (Vietnam), compared on what matters when you move from the US: cost, weather, safety, internet, visas and tax.

The short version

Hanoi is 16% cheaper: $873 vs $1,041 a month all-in for one person.
Rent is lower in Hanoi: $423 vs $496 for a 1-bedroom in the centre.
Hanoi has more pleasant weather: 4 pleasant months a year vs 2.
Chiang Mai is warmer: highs average 4°F more across the year (coldest-month high 81°F vs 71°F in Hanoi; hottest 98°F vs 92°F).
Residents rate Chiang Mai safer: a safety index of 78 vs 66 out of 100 (Numbeo survey).
Internet is faster in Chiang Mai: 335 vs 238 Mbps median download.
The air is cleaner in Chiang Mai: PM2.5 of 18.2 vs 45.9 µg/m³ a year.
Thailand has a nomad visa (savings test); Vietnam has no nomad visa.

Measure	🇹🇭 Chiang Mai	🇻🇳 Hanoi
⭐ Fit score (default weights)	82	81
💰 All-in / month	$1,041	$873
🏠 1BR rent, centre	$496	$423
🛒 Living costs, no rent	$545	$450
☀️ Pleasant months	2	4
🌡️ Highs, coldest–hottest month	81–98°F	71–92°F
🛡️ Safety	78/100 (residents)	66/100 (residents)
📶 Internet, median download	335 Mbps	238 Mbps
🌬️ Air, PM2.5 per year	18.2 µg/m³	45.9 µg/m³
🗣️ English	Very low (EF)	Moderate (EF)
🏥 Healthcare access (WHO)	Very high	High
👩 Women's safety & rights	Moderate	Moderate
🏳️‍🌈 LGBTQ+ equality	High	Moderate
✈️ Flight to the US (est.)	~14.5h to Seattle	~14h to Seattle
🕘 US work-hour overlap	0 h	0 h
🗓️ Visa-free stay (US passport)	60 days	90 days
🛂 Nomad visa	DTV (Destination Thailand Visa)	No nomad visa
🧾 Tax if resident	🟢 Friendly · Foreign income only if brought in, top 35%	🟡 Moderate · Worldwide income, top 35%

🇹🇭 Chiang Mai

2 best months

🇻🇳 Hanoi

5 best months

Colour is each month's typical temperature; ticked months are the most comfortable. Full detail: Chiang Mai climate · Hanoi climate.

Data last updated September 7, 2026 · Source: Numbeo cost data, measured climate history, Ookla, UNODC/Numbeo safety and curated visa research