Chattogram weather in September
September is one of the least pleasant months in Chattogram: highs of 30°C (86°F) and about 395 mm (15.6 in) of rain on average. Nights average 26°C (78°F) and cloud cover 84% (NASA POWER, 2001–2025 averages). The sea averages 31°C (87°F). It is the 4th wettest month of the year and the 5th warmest. Compared with August, it is about as warm and drier; October brings highs of 30°C (85°F) and 233 mm (9.2 in) of rain.
Is September a good time to visit Chattogram?
least pleasant month Weather score 33/100.
September is one of the least pleasant months for weather in Chattogram. For better conditions, consider Nov–Mar.
Does it rain a lot in Chattogram in September?
Yes, it is one of the rainy months: about 395 mm (15.6 in) falls in an average September. It is the 4th wettest month of the year.
How warm is Chattogram in September?
Days average 30°C (86°F) and nights 26°C (78°F).
Chattogram weather by month
| Month | High | Low | Rain | Cloud | Sea | Weather |
|---|---|---|---|---|---|---|
| January | 24°C (75°F) | 13°C (55°F) | 9 mm | 25% | 21°C (70°F) | best |
| February | 28°C (82°F) | 16°C (61°F) | 19 mm | 26% | 23°C (74°F) | best |
| March | 31°C (89°F) | 21°C (69°F) | 41 mm | 36% | 27°C (80°F) | best |
| April | 32°C (90°F) | 24°C (76°F) | 126 mm | 48% | 30°C (86°F) | fair |
| May | 32°C (89°F) | 26°C (79°F) | 305 mm | 65% | 31°C (88°F) | least pleasant |
| June | 31°C (87°F) | 26°C (79°F) | 551 mm | 87% | 30°C (86°F) | least pleasant |
| July | 30°C (86°F) | 26°C (79°F) | 782 mm | 91% | 29°C (85°F) | least pleasant |
| August | 30°C (86°F) | 26°C (78°F) | 531 mm | 90% | 29°C (84°F) | least pleasant |
| September | 30°C (86°F) | 26°C (78°F) | 395 mm | 84% | 31°C (87°F) | least pleasant |
| October | 30°C (85°F) | 24°C (75°F) | 233 mm | 56% | 30°C (87°F) | least pleasant |
| November | 28°C (82°F) | 20°C (67°F) | 56 mm | 30% | 28°C (82°F) | best |
| December | 25°C (76°F) | 15°C (59°F) | 14 mm | 28% | 23°C (73°F) | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), sea temperature from Open-Meteo Marine. Page updated . How we rate months