Temperature
Hot by day, warm at night.
Humid air is the main limitation.

Hot by day, warm at night.
It rains on most days, with a mix of brief and longer spells. About 26 wet days, more than in most months.
Cloudier spells limit sunshine.
Very humid air is a major factor this month.
In September, afternoons feel about 93° and nights feel near 87°.
Overcast skies this month.
Calm winds are typical in September.
September late afternoons are around 84°F, easing to about 82°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 75 | 60 | 0.2 | 1 | 10.0 | 75 |
| Feb | 80 | 65 | 0.6 | 2 | 10.5 | 71 |
| Mar | 85 | 72 | 2.0 | 5 | 11.4 | 73 |
| Apr | 87 | 77 | 4.4 | 10 | 11.3 | 79 |
| May | 87 | 79 | 11.7 | 21 | 10.2 | 82 |
| Jun | 85 | 79 | 21.0 | 27 | 7.7 | 87 |
| Jul | 84 | 79 | 22.1 | 29 | 7.0 | 88 |
| Aug | 85 | 79 | 17.3 | 29 | 7.7 | 88 |
| Sep | 85 | 79 | 13.5 | 26 | 8.4 | 87 |
| Oct | 85 | 77 | 7.9 | 17 | 9.1 | 83 |
| Nov | 82 | 71 | 1.7 | 4 | 10.0 | 78 |
| Dec | 77 | 63 | 0.4 | 1 | 9.8 | 78 |
Similar climates
Want a side-by-side climate view? Compare Chittagong with Hong Kong.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 26, 2026
Data & methodology