Hanoi · Month comparison

October vs April

April ranks #1 overall vs October at #3. The best weather month — warm, sunny, low crowds, and the Old Quarter at its most photogenic.

Hanoi October — Turtle Tower at Hoan Kiem Lake in the warm autumn evening light

October

#3 of 12 months

Best match

Autumn arrives — rain easing, temperatures dropping, and one of the best months to experience the Old Quarter.

  • Temperatures fall to a very comfortable 29°C and humidity begins dropping — the best autumn weather makes Old Quarter exploration viable throughout the day for the first time since April
  • Mid-Autumn Festival can fall in early October (lunar calendar dependent) — if so, the Hang Ma Street and Hoan Kiem Lake celebrations are the highlight of the Hanoi calendar
Hanoi April — colonial building and green trees along the French Quarter in spring sunshine

April

#1 of 12 months

Best match

The best weather month — warm, sunny, low crowds, and the Old Quarter at its most photogenic.

  • April is the joint-best weather month in Hanoi: 26°C, 5.5 sunshine hours, and light rather than heavy rain — the Old Quarter is comfortable to explore for a full day without the humidity and heat of summer
  • Crowds are at their annual low outside the peak seasons; the Ngoc Son Temple at Hoan Kiem Lake and the Temple of Literature can be visited without congestion
FactorOctoberApril
Weather score
6
8
Value score
6
7
Crowd score
6
7
Events score
8
5
Atmosphere
8
7
Avg high temp29°C26°C
Monthly rain198mm88mm
Daily sunshine5.8hrs5.5hrs

October trade-offs

  • 198mm of rain means October still brings heavy downpours — not as relentless as August, but afternoon rain remains a reliable disruption to outdoor plans
  • Prices are beginning to rise with the improving weather; October is no longer the budget season of the summer months
  • The combination of still-frequent rain and tourist awareness of the good autumn weather means popular hotels book out faster than at any summer month

April trade-offs

  • Rainfall increases to 88mm — light but present; afternoon showers are possible; carry a small umbrella or poncho
  • April is starting to become more popular as word of the good weather spreads; hotels fill faster than in February-March and prices begin edging upward
  • The heat is building toward summer levels by late April — daytime sightseeing between 11am and 3pm can already feel warm
Scores compare months within Hanoi. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →