Cox's Bazar weather in December
December in Cox's Bazar: warm, dry — an excellent time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#4 of 12 months in Cox's Bazar · #158 of 1413 destinations to visit in December · comfort 88/100 (tier A)
- Days
- 26°C
- Nights
- 19°C
- Wet days
- 2
- Sun
- 9.5 h
- Humidity
- 73%
- Daylight
- 11 h

Traveller notes on Cox's Bazar in December
Other months in Cox's Bazar
Forum posters describe August across Bangladesh as hot, humid and squarely within monsoon season, with a high likelihood of heavy rainfall and localized flooding risk. Posters recommend November through March as the more reliable window specifically for Cox's Bazar, Bangladesh's main beach destination, implying August sits well outside its ideal weather stretch. Posters are consistent that while some sights and attractions elsewhere in the country remain accessible during the rains, travel plans benefit from staying flexible and monitoring forecasts closely. Some posters do note a certain charming, moody atmosphere to traveling Bangladesh during the rainy season for those willing to embrace it. Posters generally rate August as hot, wet and outside Cox's Bazar's recommended beach season, workable only with realistic, flexible expectations.
Forum posters name February as the supreme time to visit Bangladesh generally, describing it as much less hot and humid with winter in full bloom - genuinely the best weather window of the year by posters' consistent reckoning. Posters name November through March, and February specifically, as the best stretch for Cox's Bazar, with December and January noted as running properly cold by local standards even though this is nowhere near a Northern-Hemisphere winter cold. Posters generally recommend February as a strong, low-risk choice for beach time along Cox's Bazar's long coastline, sitting comfortably within the dry winter season before the pre-monsoon heat begins building later in spring.
Add your own note from Cox's Bazar's card on the map.
Cox's Bazar climate normals — December
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Cox's Bazar 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.
BusyDomestic high season, school holidays in 5 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Cox's Bazar'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 weatherCox's Bazar's weather peaks January–March, best around February.
Best weatherFair weatherToughest weather
What's on in Cox's Bazar in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Domestic high season
15 Nov – 28 FebDry seasonCrowdedBook earlyThe dry months are when the whole country takes its beach holiday. Weekends are the pinch point: rates jump from Thursday, and the boats out to Saint Martin's run full while the season allows them to run at all.
Where is Cox's Bazar?
Cox's Bazar in December — FAQ
- Is December a good time to visit Cox's Bazar?
- December in Cox's Bazar: warm, dry — an excellent time to visit. It ranks #4 of 12 months for Cox's Bazar on SeasonMap's comfort score (88/100).
- What is the weather like in Cox's Bazar in December?
- In December, Cox's Bazar averages a daily high of 25.7°C and a low of 19°C, with about 13.1 mm of rain over roughly 1.6 rainy days.
- What is the air quality in Cox's Bazar in December?
- Cox's Bazar has a mean US Air Quality Index of about 98 in December.