SeasonMapHa Giang (Ha Giang Loop) weather in September
Vietnam
September in Ha Giang: hot, soaked, with clean air — a gamble, with 22 rainy days.
#8 of 12 months in Ha Giang · #1220 of 1383 destinations to visit in September · comfort 54/100 (tier D)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Ha Giang in September
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Ha Giang climate normals — September
| Daytime high | 30°C / 86°F | 🥵 hot |
|---|---|---|
| Nighttime low | 24°C / 74°F | |
| Rainfall | 221 mm / 8.7 in | ⛈ soaked |
| Rainy days | 22 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 7.9 h/day | |
| Daylight | 12.3 h | |
| Wind | 6 km/h / 4 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Ha Giang in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusySummer break in Vietnam, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Ha Giang's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherHa Giang's weather peaks December–February.
Best weatherFair weatherToughest weather
What's on in Ha Giang in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Rice terraces turn gold
5 Sep – 10 Oct · usuallyHarvestThe terraces at Hoang Su Phi ripen for a few weeks before they are cut, and that short window is what most of the traffic on the western loop is here for.
- Season
Wet season
MonsoonRisk22 rainy days and about 221 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Nearby, and something's on
Within 300 km of Ha Giang — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Ha Giang?
Ha Giang in September — FAQ
- Is September a good time to visit Ha Giang?
- September in Ha Giang: hot, soaked, with clean air — a gamble, with 22 rainy days. It ranks #8 of 12 months for Ha Giang on SeasonMap's comfort score (54/100).
- What is the weather like in Ha Giang in September?
- In September, Ha Giang averages a daily high of 30.2°C and a low of 23.6°C, with about 221.3 mm of rain over roughly 22.2 rainy days.
- What is the air quality in Ha Giang in September?
- Ha Giang has a mean US Air Quality Index of about 44 in September.
Other months in Ha Giang
Compare Ha Giang in September
Warmer or cooler than Ha Giang in September
Similar destinations in Southeast Asia — September
Within 300 km: Hanoi's Hanoi autumn around 25 Sep – 30 Nov, and Ha Long's Northern autumn around 25 Sep – 30 Nov.