August · Vietnam
Best time to visit Hanoi in August Weather, crowds & prices
Weather in Hanoi in August
Average temperature 28°C, 359 mm of rain, about 18 days with 6+ hours of sunshine and 87% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
2.8/10
Ranked #11 of 12 months
- Avg temp
- 28°C
- Rainfall
- 359 mm
- Humidity
- 87%
- Days with 6h+ sun
- 18
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
August in Hanoi scores 2.8/10 for sightseeing and cultural travel - ranked #11 of 12. Expect around 28°C, 359 mm of rain, and roughly 18 days with 6+ hours of sunshine this month.
Old Quarter alleys, lake walks, and street-noodle mornings peak January through March.
August in Hanoi — off-season conditions
Days in August average 28°C (83°F) and humidity near 87% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
Expect monsoon-level rainfall at 359 mm: only about 18 days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.
That is 2.8/10 on the same scale — 11th of 12 months, versus 8.5/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Expect low-season pricing, and crowds are light for this destination.
If your dates are flexible, November is materially better in Hanoi — 5.7 points higher on the same scale.
Frequently asked
- What is the weather like in Hanoi in August?
- In August, Hanoi averages 28°C, 359 mm of rain, and about 18 days with 6+ hours of sunshine. Its climate-comfort score is 2.8/10.
- Is August a good time to visit Hanoi?
- August earns a 2.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Hanoi in August?
- Expect about 359 mm of rain in August. Average humidity is 87% and there are about 18 days with 6+ hours of sunshine.
Curated in Hanoi
Tickets & experiences
Things to do in Hanoi
Hanoi, Vietnam. Live activities and tours from GetYourGuide, matched to this destination.