Cox's Bazar Weather in September
September in Cox's Bazar brings very high temperatures, with highs of 30°C (86°F) and nights dropping to 26°C (79°F). The rainy season is in full swing this month, so frequent downpours are part of the picture.
Rainfall in Cox's Bazar in September
Cox's Bazar is in the rainy season in September, with rain on around 17 days and an average of 367 mm (14 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours, often in the late afternoon.
Temperature in Cox's Bazar in September
In September, expect very high temperatures in Cox's Bazar, with highs of 30°C (86°F) and lows of 26°C (79°F) at night. For most visitors, the main thing to prepare for is the heat during the day. At 26°C (79°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.September in Cox's Bazar can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bangladesh, check out our Cox's Bazar's climate page.
Cox's Bazar Temperature in September
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Chance of Rain
55%
Precipitation
367 mm (14 in)
Rainy days
17 days
Daily Historical Temperatures
37-year average (1986-2025)
Based on our historical records, temperatures in Cox's Bazar typically stay consistent throughout September, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in September
Historical weather for Cox's Bazar in September
Browse day-by-day weather records for Cox's Bazar spanning 45 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cox's Bazar historical weather extremes in September
The extremes listed below come from historical weather data collected in Cox's Bazar from 2005 through 2025.
- Cox's Bazar recorded its highest September temperature of 35°C (95°F) on September 1, 2017.
- On September 22, 2006, Cox's Bazar saw its coldest September day with temperatures maxing out at 26°C (79°F).
- Cox's Bazar registered its coldest September night on September 24, 2011, with temperatures dropping to 24°C (75°F).
Best Places in Bangladesh in September
Find out more about the weather in Bangladesh and which places have the best travel conditions in this month. See all of Bangladesh in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Cox's Bazar in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything!What To Do in Cox's Bazar in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Bangladesh, check out our Cox's Bazar's climate page.
See the full Cox's Bazar climate overview or explore weather in Bangladesh.
