Chattogram climate at a glance
Chattogram sees average daytime highs ranging from 26°C in January to 33°C in April. Around 2101 mm of precipitation falls over roughly 155 wet days a year, peaking in August (471 mm) and easing off in February (5 mm). April is the sunniest month at about 11 hours of sunshine.
Chattogram temperature & rainfall by month
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Weather seasons in Chattogram
Grouped by the monthly travel score — purely weather-based, not crowd or price data.
Chattogram climate, month by month
Averages computed from ERA5 reanalysis data, 2019–2024. Daylight on the 15th: 10.8 h in January. Reuse this data freely with attribution — download as JSON or CSV.
| Month | High | Low | Rain days | Rainfall | Sun/day | Humidity | Score |
|---|---|---|---|---|---|---|---|
| January | 26°C | 14°C | 1.3 | 14 mm | 9.7 h | 76% | 10.0 · Excellent |
| February | 28°C | 15°C | 1.5 | 5 mm | 10 h | 69% | 10.0 · Excellent |
| March | 32°C | 20°C | 3 | 21 mm | 10.2 h | 68% | 6.9 · Fair |
| April | 33°C | 24°C | 6.3 | 51 mm | 11 h | 76% | 4.8 · Poor |
| May | 33°C | 25°C | 16.5 | 179 mm | 10.5 h | 80% | 3.0 · Poor |
| June | 31°C | 26°C | 24.3 | 369 mm | 8.1 h | 87% | 3.6 · Poor |
| July | 30°C | 26°C | 28.7 | 432 mm | 7.7 h | 88% | 3.6 · Poor |
| August | 30°C | 25°C | 29 | 471 mm | 7 h | 89% | 3.7 · Poor |
| September | 31°C | 25°C | 25.8 | 336 mm | 8.4 h | 88% | 3.4 · Poor |
| October | 31°C | 24°C | 14.8 | 157 mm | 9.6 h | 86% | 4.3 · Poor |
| November | 29°C | 20°C | 2.7 | 48 mm | 10.2 h | 80% | 8.5 · Excellent |
| December | 27°C | 16°C | 1.5 | 19 mm | 9.6 h | 78% | 10.0 · Excellent |
Frequently asked questions
What is the best time to visit Chattogram?
The best time to visit Chattogram is December–February, when daytime highs average around 26°C with about 1.3 rainy days per month.
What is the hottest month in Chattogram?
April is the hottest month in Chattogram, with average highs of 33°C.
What is the rainiest month in Chattogram?
August is the rainiest month in Chattogram, with around 471 mm of rainfall over 29 rainy days.
Where should you go next month?
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