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

Cox's Bazar🇧🇩 Bangladesh · Bangladesh & Bengal · Beach88
  1. 90Jan
  2. 94Feb
  3. 91Mar
  4. 83Apr
  5. 73May
  6. 51Jun
  7. 48Jul
  8. 49Aug
  9. 56Sep
  10. 68Oct
  11. 86Nov
  12. 88Dec

#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
Cox's Bazar, Bangladesh
Photo: Saied Shohag · Pexels

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.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗
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.
Tripadvisor community · February · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Cox's Bazar's card on the map.

Cox's Bazar climate normals — December

Daytime high26°C / 78°F🌤 warm
Nighttime low19°C / 66°F
Feels like (high)27°C / 81°F
Sea temperature26°C / 79°F😎 warm sea
Rainfall13 mm / 0.5 in☀️ dry
Rainy days2 days
Humidity73%💧 humid
Dew point17°C / 62°F
Sunshine9.5 h/day
Daylight10.8 h
Wind15 km/h / 9 mph
Air quality (US AQI)98🙂 moderate

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)

JFMAMJJASOND

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.

JFMAMJJASOND

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 early

    The 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.

What's on around the world in December →

Where is Cox's Bazar?

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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.