SeasonMapSundarbans weather in September
Bangladesh
September in Sundarbans: hot, soaked, with muggy air — a gamble, with 26 rainy days.
#7 of 12 months in Sundarbans · #1260 of 1383 destinations to visit in September · comfort 50/100 (tier D)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sundarbans in September
No notes yet. Open Sundarbans on the map to add the first one.
Sundarbans climate normals — September
| Daytime high | 31°C / 88°F | 🥵 hot |
|---|---|---|
| Nighttime low | 26°C / 78°F | |
| Rainfall | 232 mm / 9.1 in | ⛈ soaked |
| Rainy days | 26 days | |
| Humidity | 87% | 💦 very humid |
| Dew point | 26°C / 78°F | |
| Sunshine | 8 h/day | |
| Daylight | 12.3 h | |
| Wind | 14 km/h / 8 mph | |
| Air quality (US AQI) | 65 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Sundarbans 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.
Shoulder seasonschool holidays in 3 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Sundarbans'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 weatherSundarbans's weather peaks December–February, best around January.
Best weatherFair weatherToughest weather
What's on in Sundarbans in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Wet season
MonsoonRisk26 rainy days and about 232 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Where is Sundarbans?
Sundarbans in September — FAQ
- Is September a good time to visit Sundarbans?
- September in Sundarbans: hot, soaked, with muggy air — a gamble, with 26 rainy days. It ranks #7 of 12 months for Sundarbans on SeasonMap's comfort score (50/100).
- What is the weather like in Sundarbans in September?
- In September, Sundarbans averages a daily high of 30.9°C and a low of 25.8°C, with about 231.7 mm of rain over roughly 26.4 rainy days.
- What is the air quality in Sundarbans in September?
- Sundarbans has a mean US Air Quality Index of about 65 in September.