SeasonMapSundarbans weather in December
Bangladesh
December in Sundarbans: warm, dry, with poor air quality — fine if you can take poor air.
#2 of 12 months in Sundarbans · #374 of 1383 destinations to visit in December · comfort 83/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sundarbans in December
No notes yet. Open Sundarbans on the map to add the first one.
Sundarbans climate normals — December
| Daytime high | 25°C / 78°F | 🌤 warm |
|---|---|---|
| Nighttime low | 15°C / 60°F | |
| Rainfall | 30 mm / 1.2 in | ☀️ dry |
| Rainy days | 2 days | |
| Humidity | 74% | 💧 humid |
| Dew point | 15°C / 59°F | |
| Sunshine | 9.2 h/day | |
| Daylight | 10.8 h | |
| Wind | 10 km/h / 6 mph | |
| Air quality (US AQI) | 146 | 😷 poor |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Sundarbans in December
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.
Busyschool holidays in 5 of the markets that fill it, one of its best months for weather(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).
Best weatherSundarbans's weather peaks December–February, best around January.
Best weatherFair weatherToughest weather
What's on in Sundarbans in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Launch cruise season
15 Nov – 28 FebDry seasonBook earlyThe cool dry months are when the two and three-night launches run out of Mongla and Khulna. Nothing moves inside the forest without an armed forest guard aboard, so the boat you book is the trip you get.
Nearby, and something's on
Within 300 km of Sundarbans — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Sundarbans?
Sundarbans in December — FAQ
- Is December a good time to visit Sundarbans?
- December in Sundarbans: warm, dry, with poor air quality — fine if you can take poor air. It ranks #2 of 12 months for Sundarbans on SeasonMap's comfort score (83/100).
- What is the weather like in Sundarbans in December?
- In December, Sundarbans averages a daily high of 25.3°C and a low of 15.3°C, with about 29.5 mm of rain over roughly 1.6 rainy days.
- What is the air quality in Sundarbans in December?
- Sundarbans has a mean US Air Quality Index of about 146 in December.
Other months in Sundarbans
Compare Sundarbans in December
Warmer or cooler than Sundarbans in December
Similar destinations in South Asia — December
Within 300 km: Kolkata's Park Street at Christmas on 18 Dec – 1 Jan.