Cox's Bazar in Summer
In summer (June, July and August), Cox's Bazar sees average daytime highs around 29°C and overnight lows near 26°C, with 1707 mm of rain over about 87 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 2% of the time across summer, and the air most often feels miserable.
Summer is Cox's Bazar's weakest season of the year to visit on our travel score. For the whole year in context, see Cox's Bazar's year-round climate.
- Avg daytime high
- 29°C
- 2nd-warmest season
- Avg overnight low
- 26°C
- Rainfall
- 1707 mm
- 87 wet days
- Avg wind
- 17 km/h
- Travel score
- 2.9
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Cox's Bazar in Summer
Across summer, daytime highs hold fairly steady around 29°C.
A typical summer day in Cox's Bazar reaches about 29°C and drops to 26°C overnight. The warmest of the three months is June, the coolest August.
How summer really feels in Cox's Bazar
Once humidity and wind are folded in, summer brings about 92 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Cox's Bazar weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| 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 Summer
The sky is clear or mostly clear about 2% of the time across summer.
Chance of precipitation in Summer
Cox's Bazar gets around 1707 mm of rain over 87 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 17 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 12 min in early June to 12 h 30 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 3.7 kWh/m².
Hazard calendar for Cox's Bazar
In summer, Cox's Bazar overlaps its cyclone and 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.
Is summer a good time to visit Cox's Bazar?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Cox's Bazar.
What to pack for Cox's Bazar in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Cox's Bazar sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. About 87 days see rain.
Sea temperature near Cox's Bazar in Summer
The nearest coast averages about 29°C across summer — 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 Summer
Clear-sky midday UV across summer averages around 11 (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.
| 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 Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer 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.