Ha Long weather in August
August in Ha Long: hot, soaked, with very humid — a gamble, with 28 rainy days.
#12 of 12 months in Ha Long · #707 of 897 destinations to visit in August · comfort 64/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Ha Long in August
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Ha Long climate normals — August
| Daytime high | 31°C / 87°F | 🥵 hot |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Rainfall | 459 mm / 18.1 in | ⛈ soaked |
| Rainy days | 28 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 26°C / 78°F | |
| Sunshine | 7.8 h/day | |
| Daylight | 12.8 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 73 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Ha Long in August — FAQ
- Is August a good time to visit Ha Long?
- August in Ha Long: hot, soaked, with very humid — a gamble, with 28 rainy days. It ranks #12 of 12 months for Ha Long on SeasonMap's comfort score (64/100).
- What is the weather like in Ha Long in August?
- In August, Ha Long averages a daily high of 30.6°C and a low of 26.6°C, with about 458.9 mm of rain over roughly 28 rainy days.
- What is the air quality in Ha Long in August?
- Ha Long has a mean US Air Quality Index of about 73 in August.