Cox's Bazar weather in December
In December, Cox's Bazar sees average daytime highs of 25°C and overnight lows near 19°C, with 15 mm of rain across 1.3 wet days and about 10.7 hours of daylight. It is the 11th-warmest and 10th-wettest month of the year here.
Highs ease over the month, from about 26°C in the first days to 24°C by the end. The sky is clear or mostly clear about 81% of the time in December, and the air most often feels humid.
Daylight stretches from about 10 h 48 min at the start of December to 10 h 42 min by month's end. Set against the rest of the year, December is Cox's Bazar's 4th-clearest and 10th-windiest month. For the whole year in context, see Cox's Bazar's year-round climate.
- Daytime high
- 25°
- 11th warmest
- Overnight low
- 19°
- 2nd coldest
- Rainfall
- 15 mm
- 1.3 wet days
- Daylight
- 10 h 42 min
- 6:27 AM – 5:09 PM
- Cloud cover
- 19%
- 4th clearest
- Wind
- 11 km/h
- 10th windiest
- Solar energy
- 4.43 kWh/m²
- Travel score
- 9.0
- out of 10
Cox's Bazar is beach town in Bangladesh.
- Density
- 391/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Highs ease over the month, from about 26°C in the first days to 24°C by the end.
A typical December day in Cox's Bazar reaches about 25°C in the afternoon and slips back to 19°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 27°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg low (°C) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 27 | 20 |
| 2 | 26 | 20 |
| 3 | 26 | 20 |
| 4 | 26 | 20 |
| 5 | 26 | 20 |
| 6 | 26 | 20 |
| 7 | 26 | 20 |
| 8 | 26 | 20 |
| 9 | 26 | 20 |
| 10 | 26 | 19 |
| 11 | 26 | 19 |
| 12 | 26 | 19 |
| 13 | 25 | 19 |
| 14 | 25 | 19 |
| 15 | 25 | 19 |
| 16 | 25 | 19 |
| 17 | 25 | 19 |
| 18 | 25 | 19 |
| 19 | 25 | 19 |
| 20 | 25 | 18 |
| 21 | 25 | 18 |
| 22 | 25 | 18 |
| 23 | 25 | 18 |
| 24 | 25 | 18 |
| 25 | 24 | 18 |
| 26 | 24 | 18 |
| 27 | 24 | 18 |
| 28 | 24 | 18 |
| 29 | 24 | 18 |
| 30 | 24 | 18 |
| 31 | 24 | 18 |
How December really feels in Cox's Bazar
Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Cox's Bazar weather by month
How December compares with the rest of the year at a glance. December is the 11th-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 24° / 17° | 5 | 0.6 | 10.8 | 9.5 |
| Feb | 26° / 19° | 10 | 1.2 | 11.3 | 8.9 |
| Mar | 29° / 23° | 27 | 2.7 | 11.8 | 7.0 |
| Apr | 31° / 25° | 53 | 6.5 | 12.5 | 5.3 |
| May | 31° / 26° | 221 | 18.4 | 13 | 3.9 |
| Jun | 29° / 26° | 584 | 27.3 | 13.3 | 2.9 |
| Jul | 29° / 26° | 658 | 30 | 13.2 | 2.9 |
| Aug | 29° / 26° | 466 | 29.8 | 12.7 | 2.9 |
| Sep | 29° / 26° | 341 | 26.5 | 12.1 | 3.1 |
| Oct | 29° / 25° | 196 | 17.1 | 11.5 | 4.6 |
| Nov | 28° / 22° | 42 | 4.3 | 11 | 7.5 |
| Dec | 25° / 19° | 15 | 1.3 | 10.7 | 9.0 |
Cloud cover in December
The sky is clear or mostly clear about 81% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 6% of December, with mostly cloudy or overcast conditions the remaining 13%. Skies tend to open up as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 83 | 83 | 83 | 83 | 83 | 84 | 84 | 84 | 85 | 85 | 85 | 85 | 86 | 86 | 87 | 88 | 88 | 88 | 89 | 89 | 89 | 89 | 89 | 89 | 90 | 90 | 90 | 90 | 90 | 90 | 89 |
| Cloudier (%) | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 11 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 83 | 17 |
| 2 | 83 | 17 |
| 3 | 83 | 17 |
| 4 | 83 | 17 |
| 5 | 83 | 17 |
| 6 | 84 | 16 |
| 7 | 84 | 16 |
| 8 | 84 | 16 |
| 9 | 85 | 15 |
| 10 | 85 | 15 |
| 11 | 85 | 15 |
| 12 | 85 | 15 |
| 13 | 86 | 14 |
| 14 | 86 | 14 |
| 15 | 87 | 13 |
| 16 | 88 | 12 |
| 17 | 88 | 12 |
| 18 | 88 | 12 |
| 19 | 89 | 11 |
| 20 | 89 | 11 |
| 21 | 89 | 11 |
| 22 | 89 | 11 |
| 23 | 89 | 11 |
| 24 | 89 | 11 |
| 25 | 90 | 10 |
| 26 | 90 | 10 |
| 27 | 90 | 10 |
| 28 | 90 | 10 |
| 29 | 90 | 10 |
| 30 | 90 | 10 |
| 31 | 89 | 11 |
Chance of precipitation in December
Cox's Bazar gets around 15 mm of rain over 1.3 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 4% and peaks near 6% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Rain chance (%) | |
|---|---|
| 1 | 6 |
| 2 | 6 |
| 3 | 6 |
| 4 | 6 |
| 5 | 6 |
| 6 | 6 |
| 7 | 5 |
| 8 | 5 |
| 9 | 5 |
| 10 | 5 |
| 11 | 5 |
| 12 | 4 |
| 13 | 4 |
| 14 | 4 |
| 15 | 4 |
| 16 | 4 |
| 17 | 4 |
| 18 | 3 |
| 19 | 3 |
| 20 | 3 |
| 21 | 3 |
| 22 | 3 |
| 23 | 3 |
| 24 | 3 |
| 25 | 3 |
| 26 | 3 |
| 27 | 3 |
| 28 | 3 |
| 29 | 3 |
| 30 | 3 |
| 31 | 3 |
Humidity in December
Most of December feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the humid band about 49% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 7 |
| Comfortable (%) | 9 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 18 | 19 | 20 | 22 | 23 | 25 | 27 | 28 | 30 | 32 | 33 | 35 | 37 | 38 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 |
| Humid (%) | 46 | 47 | 48 | 49 | 50 | 51 | 51 | 53 | 54 | 53 | 55 | 55 | 55 | 54 | 54 | 53 | 54 | 54 | 52 | 52 | 50 | 49 | 48 | 47 | 46 | 44 | 43 | 43 | 42 | 41 | 40 |
| Muggy (%) | 38 | 37 | 35 | 34 | 33 | 31 | 30 | 28 | 26 | 25 | 23 | 22 | 20 | 19 | 18 | 17 | 15 | 14 | 13 | 12 | 11 | 11 | 10 | 9 | 9 | 9 | 8 | 8 | 7 | 7 | 6 |
| Oppressive (%) | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 0 | 9 | 46 | 38 | 7 |
| 2 | 0 | 9 | 47 | 37 | 7 |
| 3 | 0 | 10 | 48 | 35 | 6 |
| 4 | 0 | 11 | 49 | 34 | 6 |
| 5 | 0 | 12 | 50 | 33 | 5 |
| 6 | 0 | 13 | 51 | 31 | 5 |
| 7 | 0 | 14 | 51 | 30 | 5 |
| 8 | 0 | 15 | 53 | 28 | 4 |
| 9 | 0 | 16 | 54 | 26 | 4 |
| 10 | 0 | 18 | 53 | 25 | 4 |
| 11 | 0 | 19 | 55 | 23 | 3 |
| 12 | 0 | 20 | 55 | 22 | 3 |
| 13 | 0 | 22 | 55 | 20 | 3 |
| 14 | 1 | 23 | 54 | 19 | 3 |
| 15 | 1 | 25 | 54 | 18 | 2 |
| 16 | 1 | 27 | 53 | 17 | 2 |
| 17 | 1 | 28 | 54 | 15 | 2 |
| 18 | 1 | 30 | 54 | 14 | 1 |
| 19 | 2 | 32 | 52 | 13 | 1 |
| 20 | 2 | 33 | 52 | 12 | 1 |
| 21 | 3 | 35 | 50 | 11 | 1 |
| 22 | 3 | 37 | 49 | 11 | 0 |
| 23 | 4 | 38 | 48 | 10 | 0 |
| 24 | 4 | 40 | 47 | 9 | 0 |
| 25 | 4 | 41 | 46 | 9 | 0 |
| 26 | 5 | 42 | 44 | 9 | 0 |
| 27 | 5 | 43 | 43 | 8 | 0 |
| 28 | 5 | 44 | 43 | 8 | 0 |
| 29 | 6 | 45 | 42 | 7 | 0 |
| 30 | 6 | 46 | 41 | 7 | 0 |
| 31 | 7 | 47 | 40 | 6 | 0 |
Wind in December
Winds average 11 km/h in December.
Across December, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 10 | calm |
| 2 | 10 | calm |
| 3 | 10 | calm |
| 4 | 10 | calm |
| 5 | 10 | calm |
| 6 | 10 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 10 | calm |
| 11 | 10 | calm |
| 12 | 10 | calm |
| 13 | 11 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 11 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 12 | calm |
| 31 | 12 | calm |
Sunrise & sunset in December
Daylight runs from about 10 h 48 min at the start of December to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 6 minutes over December. Sunrise moves from 6:18 AM to 6:34 AM, and sunset from 5:05 PM to 5:16 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 |
| Sunrise (AM) | 6:18 | 6:19 | 6:19 | 6:20 | 6:21 | 6:21 | 6:22 | 6:22 | 6:23 | 6:24 | 6:24 | 6:25 | 6:25 | 6:26 | 6:27 | 6:27 | 6:28 | 6:28 | 6:29 | 6:29 | 6:30 | 6:30 | 6:31 | 6:31 | 6:31 | 6:32 | 6:32 | 6:33 | 6:33 | 6:33 | 6:34 |
| Sunset (PM) | 5:05 | 5:05 | 5:06 | 5:06 | 5:06 | 5:06 | 5:06 | 5:07 | 5:07 | 5:07 | 5:07 | 5:08 | 5:08 | 5:08 | 5:09 | 5:09 | 5:10 | 5:10 | 5:10 | 5:11 | 5:11 | 5:12 | 5:12 | 5:13 | 5:13 | 5:14 | 5:14 | 5:15 | 5:15 | 5:16 | 5:16 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.8 | 6:18 | 5:05 |
| 2 | 10.8 | 6:19 | 5:05 |
| 3 | 10.8 | 6:19 | 5:06 |
| 4 | 10.8 | 6:20 | 5:06 |
| 5 | 10.8 | 6:21 | 5:06 |
| 6 | 10.7 | 6:21 | 5:06 |
| 7 | 10.7 | 6:22 | 5:06 |
| 8 | 10.7 | 6:22 | 5:07 |
| 9 | 10.7 | 6:23 | 5:07 |
| 10 | 10.7 | 6:24 | 5:07 |
| 11 | 10.7 | 6:24 | 5:07 |
| 12 | 10.7 | 6:25 | 5:08 |
| 13 | 10.7 | 6:25 | 5:08 |
| 14 | 10.7 | 6:26 | 5:08 |
| 15 | 10.7 | 6:27 | 5:09 |
| 16 | 10.7 | 6:27 | 5:09 |
| 17 | 10.7 | 6:28 | 5:10 |
| 18 | 10.7 | 6:28 | 5:10 |
| 19 | 10.7 | 6:29 | 5:10 |
| 20 | 10.7 | 6:29 | 5:11 |
| 21 | 10.7 | 6:30 | 5:11 |
| 22 | 10.7 | 6:30 | 5:12 |
| 23 | 10.7 | 6:31 | 5:12 |
| 24 | 10.7 | 6:31 | 5:13 |
| 25 | 10.7 | 6:31 | 5:13 |
| 26 | 10.7 | 6:32 | 5:14 |
| 27 | 10.7 | 6:32 | 5:14 |
| 28 | 10.7 | 6:33 | 5:15 |
| 29 | 10.7 | 6:33 | 5:15 |
| 30 | 10.7 | 6:33 | 5:16 |
| 31 | 10.7 | 6:34 | 5:16 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 4.43 kWh/m².
For context, solar energy here swings from a low near 3.44 kWh/m² to a high of 6.34 kWh/m² in April across the year — December's 4.43 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.5 | 4.5 | 4.5 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.5 | Bright |
| 2 | 4.5 | Bright |
| 3 | 4.5 | Bright |
| 4 | 4.4 | Bright |
| 5 | 4.4 | Bright |
| 6 | 4.4 | Bright |
| 7 | 4.4 | Bright |
| 8 | 4.4 | Bright |
| 9 | 4.4 | Bright |
| 10 | 4.4 | Bright |
| 11 | 4.4 | Bright |
| 12 | 4.4 | Bright |
| 13 | 4.4 | Bright |
| 14 | 4.4 | Bright |
| 15 | 4.4 | Bright |
| 16 | 4.4 | Bright |
| 17 | 4.4 | Bright |
| 18 | 4.4 | Bright |
| 19 | 4.4 | Bright |
| 20 | 4.4 | Bright |
| 21 | 4.5 | Bright |
| 22 | 4.5 | Bright |
| 23 | 4.5 | Bright |
| 24 | 4.5 | Bright |
| 25 | 4.5 | Bright |
| 26 | 4.5 | Bright |
| 27 | 4.5 | Bright |
| 28 | 4.5 | Bright |
| 29 | 4.5 | Bright |
| 30 | 4.5 | Bright |
| 31 | 4.5 | Bright |
Hazard calendar for Cox's Bazar
In December, Cox's Bazar sits inside its cyclone season. The full year is below, with each hazard's peak months called out.
Cox's Bazar sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.
Cox's Bazar's monsoon runs June–September, when most of the year's rain falls.
Is December a good time to visit Cox's Bazar?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is one of the better times to visit Cox's Bazar for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Cox's Bazar in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Cox's Bazar sees daytime highs around 25°C and nights near 19°C. Worth packing: light clothes.
Sea temperature near Cox's Bazar in December
The nearest coast averages about 26°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 km away) is warmest in October at about 30°C and coldest in January near 24°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 24 | 24 | 26 | 28 | 29 | 29 | 29 | 29 | 29 | 30 | 28 | 26 |
| Comfort | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 24 | Warm |
| Feb | 24 | Warm |
| Mar | 26 | Warm |
| Apr | 28 | Tropical |
| May | 29 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 30 | Tropical |
| Nov | 28 | Tropical |
| Dec | 26 | Warm |
UV index in Cox's Bazar in December
Clear-sky midday UV in December peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Cox's Bazar peaks around July 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 6 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 6 | 7 | 8 | 8 | 11 | 8 | 13 | 12 | 9 | 7 | 7 | 6 |
| Level | High | Very high | Very high | Very high | Extreme | Very high | Extreme | Extreme | Very high | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 6 | High |
| Feb | 7 | Very high |
| Mar | 8 | Very high |
| Apr | 8 | Very high |
| May | 11 | Extreme |
| Jun | 8 | Very high |
| Jul | 13 | Extreme |
| Aug | 12 | Extreme |
| Sep | 9 | Very high |
| Oct | 7 | Very high |
| Nov | 7 | High |
| Dec | 6 | High |
Air quality in Cox's Bazar in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in Cox's Bazar is worst in March — around 143 µg/m³ PM2.5 (unhealthy), about 7.5× the cleanest month (July, 19 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 64 | 60 | 143 | 113 | 32 | 23 | 19 | 21 | 21 | 28 | 36 | 52 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 64 | Unhealthy |
| Feb | 60 | Unhealthy |
| Mar | 143 | Unhealthy |
| Apr | 113 | Unhealthy |
| May | 32 | Moderate |
| Jun | 23 | Moderate |
| Jul | 19 | Moderate |
| Aug | 21 | Moderate |
| Sep | 21 | Moderate |
| Oct | 28 | Moderate |
| Nov | 36 | Poor |
| Dec | 52 | Poor |
Where is Cox's Bazar?
Cox's Bazar sits at 21.4°N, 92.0°E, 2 m above sea level, in Bangladesh. The nearest listed city is Buthidaung Town, 83 km away.
Topography around Cox's Bazar
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cox's Bazar.
Within 3 km, the terrain around Cox's Bazar has only modest variations in elevation — a maximum elevation change of 62 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 92 m; within 80 km, large variations in elevation — a maximum elevation change of 1,029 m.
The land around Cox's Bazar is covered by trees (54%) and cropland (25%) within 3 km, water (41%) and trees (38%) within 16 km, and trees (53%) and water (38%) within 80 km.
Bangladesh travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type A / C / D / G
- 220 V · 50 Hz
- Prices
- ≈ 25% of US
- price level, 2025
- GDP per capita
- $2,597
- 2025
- Happiness
- 4.3 / 10
- World Happiness, 2025
- Safe drinking water
- 59%
- of population, 2024
- Homicide rate
- 2.3
- per 100k, 2018
- Road deaths
- 15.3
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Moderate
- EF EPI 506
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Cox's Bazar (21.4397°, 92.0096°, elevation 2 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).