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.
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
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
| Factor | October | April |
|---|---|---|
| Weather score | 6 | 8 |
| Value score | 6 | 7 |
| Crowd score | 6 | 7 |
| Events score | 8 | 5 |
| Atmosphere | 8 | 7 |
| Avg high temp | 29°C | 26°C |
| Monthly rain | 198mm | 88mm |
| Daily sunshine | 5.8hrs | 5.5hrs |
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 →