Climate averages 1991–2020
Chattogram weather
in July.
A hot, very wet month: the 8th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Chattogram: daytime highs average 28.5°C and nights cool to about 25.6°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 606 mm of rain on roughly 29 days, which makes July a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 22 min on an average July day.
The nearest other city in this atlas is Hāthazāri (19 km away). In July its highs average 28.7°C, about as warm as Chattogram, with 562 mm of rain.
Among the 63 cities listed in Bangladesh, Chattogram ranks 62nd of 63 for the warmest July highs and 60th of 63 for the driest July (rainfall, lowest first). The mean July high of those 63 cities is 30.5°C; Chattogram is 2.0°C cooler than that mean.
From July to August, average highs rise by 0.3°C to 28.7°C, and monthly rainfall falls from 606 mm to 454 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Chattogram climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 23.9°C15.8°C | 15.8°C | 6.2 | 0.8 | 10.911 h |
| February | 26.4°C18.0°C | 18.0°C | 14 | 1.8 | 11.411 h |
| March | 29.4°C22.1°C | 22.1°C | 46 | 4.4 | 12.012 h |
| April | 30.5°C25.0°C | 25.0°C | 98 | 9.4 | 12.713 h |
| May | 30.3°C26.0°C | 26.0°C | 291 | 20.5 | 13.213 h |
| June | 29.2°C26.0°C | 26.0°C | 583 | 26.8 | 13.513 h |
| July, selected | 28.5°C25.6°C | 25.6°C | 606 | 29.3 | 13.413 h |
| August | 28.7°C25.6°C | 25.6°C | 454 | 28.7 | 12.913 h |
| September | 29.0°C25.4°C | 25.4°C | 340 | 25.6 | 12.312 h |
| October | 29.0°C24.5°C | 24.5°C | 203 | 17.3 | 11.712 h |
| November | 27.3°C21.1°C | 21.1°C | 48 | 3.9 | 11.111 h |
| December | 24.7°C17.4°C | 17.4°C | 12 | 1.2 | 10.811 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Hāthazāri in JulyBangladesh · 19 kmHigh 28.7°C · Low 25.4°C · 562 mm rain
- Bibir Hat in JulyBangladesh · 39 kmHigh 28.9°C · Low 25.2°C · 502 mm rain
- Rangamati in JulyBangladesh · 50 kmHigh 29.6°C · Low 24.7°C · 355 mm rain
- Karnaphuli in JulyBangladesh · 57 kmHigh 29.5°C · Low 24.9°C · 355 mm rain
- Feni in JulyBangladesh · 87 kmHigh 29.4°C · Low 25.3°C · 428 mm rain
- Maijdi in JulyBangladesh · 95 kmHigh 29.6°C · Low 25.5°C · 415 mm rain
- Cox’s Bāzār in JulyBangladesh · 102 kmHigh 28.1°C · Low 25.3°C · 658 mm rain
- Lākshām in JulyBangladesh · 124 kmHigh 29.8°C · Low 25.4°C · 361 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Chattogram) is explained once on the Chattogram year overview and on the Sources, method and limits page.