Cox's Bazar weather in August

In August, Cox's Bazar sees average daytime highs of 29°C and overnight lows near 26°C, with 466 mm of rain across 29.8 wet days and about 12.7 hours of daylight. It is the 7th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 1% of the time in August, and the air most often feels miserable.

Daylight stretches from about 13 hours at the start of August to 12 h 30 min by month's end. Set against the rest of the year, August is Cox's Bazar's 11th-clearest and 3rd-windiest month. For the whole year in context, see Cox's Bazar's year-round climate.

Daytime high
29°
7th warmest
Overnight low
26°
9th coldest
Rainfall
466 mm
29.8 wet days
Daylight
12 h 42 min
5:34 AM – 6:18 PM
Cloud cover
93%
11th clearest
Wind
16 km/h
3rd windiest
Solar energy
3.67 kWh/m²
Travel score
2.9
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 August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical August day in Cox's Bazar reaches about 29°C in the afternoon and slips back to 26°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, August runs on par with July and on par with September.

25°28°30°33°35°151015202531
Avg high (°C)Avg low (°C)
12926
22926
32926
42926
52926
62926
72926
82926
92926
102926
112926
122926
132926
142926
152926
162926
172926
182926
192926
202926
212926
222926
232926
242926
252926
262926
272926
282926
292926
302926
312926

How August really feels in Cox's Bazar

Once humidity and wind are folded in, August averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Cox's Bazar weather by month

How August compares with the rest of the year at a glance. August is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 17°50.610.89.5
Feb26° / 19°101.211.38.9
Mar29° / 23°272.711.87.0
Apr31° / 25°536.512.55.3
May31° / 26°22118.4133.9
Jun29° / 26°58427.313.32.9
Jul29° / 26°6583013.22.9
Aug29° / 26°46629.812.72.9
Sep29° / 26°34126.512.13.1
Oct29° / 25°19617.111.54.6
Nov28° / 22°424.3117.5
Dec25° / 19°151.310.79.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 2% of August, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1298
2298
3298
4298
5199
6199
7199
8199
9199
10199
11199
12199
13199
14199
15199
16397
17397
18397
19397
20397
21496
22496
23496
24496
25496
26595
27595
28595
29595
30595
31595

Chance of precipitation in August

Any precipitation

Cox's Bazar gets around 466 mm of rain over 29.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 96% and peaks near 97% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
197
297
397
497
597
697
797
897
997
1097
1197
1297
1396
1496
1596
1696
1796
1896
1995
2095
2195
2295
2395
2495
2595
2695
2794
2894
2994
3094
3194

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the miserable band about 100% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Miserable (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in August

Winds average 16 km/h in August.

Across August, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 hours at the start of August to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over August. Sunrise moves from 5:28 AM to 5:38 AM, and sunset from 6:28 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:286:28
213.05:296:27
313.05:296:27
412.95:296:26
512.95:306:26
612.95:306:25
712.95:316:24
812.95:316:24
912.95:316:23
1012.85:326:23
1112.85:326:22
1212.85:326:21
1312.85:336:20
1412.85:336:20
1512.85:336:19
1612.75:346:18
1712.75:346:18
1812.75:346:17
1912.75:356:16
2012.75:356:15
2112.65:356:14
2212.65:366:14
2312.65:366:13
2412.65:366:12
2512.65:376:11
2612.65:376:10
2712.55:376:09
2812.55:386:08
2912.55:386:07
3012.55:386:06
3112.55:386:06

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.67 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 — August's 3.67 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.5Moderate
123.5Moderate
133.5Moderate
143.5Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.6Moderate
193.6Moderate
203.7Moderate
213.7Moderate
223.7Moderate
233.8Moderate
243.8Moderate
253.8Moderate
263.8Moderate
273.9Moderate
283.9Moderate
293.9Moderate
303.9Moderate
313.9Moderate
Planning a trip in August

Hazard calendar for Cox's Bazar

In seasonPeak

In August, Cox's Bazar sits inside its monsoon 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.

Cyclone
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Cox's Bazar?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.9
Sightseeing
10th-best month of the year
3.7
Beach & pool
11th-best month of the year

August is a weaker month for outdoor sightseeing in Cox's Bazar.

What to pack for Cox's Bazar in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Cox's Bazar sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. About 30 days see rain.

light clothesrain gear

Sea temperature near Cox's Bazar in August

The nearest coast averages about 29°C in August — 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.

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb24Warm
Mar26Warm
Apr28Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct30Tropical
Nov28Tropical
Dec26Warm

UV index in Cox's Bazar in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 12 (very high — sun protection essential). 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highVery highExtremeVery highHighJul 22UV 13Jan 10UV 6
UV index (midday)Level
Jan6High
Feb7Very high
Mar8Very high
Apr8Very high
May11Extreme
Jun8Very high
Jul13Extreme
Aug12Extreme
Sep9Very high
Oct7Very high
Nov7High
Dec6High

Air quality in Cox's Bazar in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August 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).

0306090120150JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyModeratePoorMar 20137 µg/m³Jul 1919 µg/m³
PM2.5 (µg/m³)Level
Jan64Unhealthy
Feb60Unhealthy
Mar143Unhealthy
Apr113Unhealthy
May32Moderate
Jun23Moderate
Jul19Moderate
Aug21Moderate
Sep21Moderate
Oct28Moderate
Nov36Poor
Dec52Poor
Location & terrain

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.

Buthidaung TownChittagongKyauktawBarisalBagerhat

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.

3 km
62 m
16 km
92 m
80 km
1,029 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
August weather nearby: Buthidaung Town 83 km · Chittagong 102 km · Kyauktaw 120 km · Mrauk U 155 km · Sittwe 171 km · Hakha 213 km · Barisal 220 km · Bagerhat 266 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
Muslim 91%Hindu 8%other 1%

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).