SeasonMapPunakha weather in September
Bhutan
September in Punakha: warm, soaked, with clean air — a gamble, with 29 rainy days.
#10 of 12 months in Punakha · #1163 of 1383 destinations to visit in September · comfort 59/100 (tier D)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Punakha in September
No notes yet. Open Punakha on the map to add the first one.
Punakha climate normals — September
| Daytime high | 25°C / 76°F | 🌤 warm |
|---|---|---|
| Nighttime low | 19°C / 66°F | |
| Rainfall | 487 mm / 19.2 in | ⛈ soaked |
| Rainy days | 29 days | |
| Humidity | 87% | 💦 very humid |
| Dew point | 19°C / 66°F | |
| Sunshine | 6.8 h/day | |
| Daylight | 12.3 h | |
| Wind | 6 km/h / 4 mph | |
| Air quality (US AQI) | 29 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Punakha 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.
Quietschool holidays in 3 of the markets that fill it, one of its worst months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Punakha'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).
Toughest weatherPunakha's weather peaks October–December, best around November.
September coincides with Glacial flood risk on the rivers.
Best weatherFair weatherToughest weather
What's on in Punakha in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Glacial flood risk on the rivers
1 Jun – 15 Oct · usuallyFlood seasonThe Mo Chhu and Pho Chhu, which meet at the dzong, are fed by glacial lakes upstream that have burst before: floods in 1957, 1960, 1994 and 1996 each damaged Punakha Dzong, the worst killing 23 people. The risk sits in the monsoon and glacier-melt months, not the dry winter. Source ↗
- Season
Wet season
MonsoonRisk29 rainy days and about 487 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 Punakha — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Punakha?
Punakha in September — FAQ
- Is September a good time to visit Punakha?
- September in Punakha: warm, soaked, with clean air — a gamble, with 29 rainy days. It ranks #10 of 12 months for Punakha on SeasonMap's comfort score (59/100).
- What is the weather like in Punakha in September?
- In September, Punakha averages a daily high of 24.7°C and a low of 18.8°C, with about 486.7 mm of rain over roughly 29.4 rainy days.
- What is the air quality in Punakha in September?
- Punakha has a mean US Air Quality Index of about 29 in September.
Other months in Punakha
Compare Punakha in September
Warmer or cooler than Punakha in September
Similar destinations in South Asia — September
Within 300 km: Thimphu's Thimphu Tshechu on 21–23 Sep, and Lhasa's Bathing Festival around 25 Aug – 15 Sep.