Climate averages 1991–2020
Sunāmganj weather
in August.
A hot, very wet month: the warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Sunāmganj: daytime highs average 29.4°C and nights cool to about 24.6°C. By daytime temperature it is the warmest month of the year.
Expect about 723 mm of rain on roughly 31 days, which makes August a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 01 min on an average August day.
The nearest other city in this atlas is Sylhet (51 km away). In August its highs average 30.4°C, 1.0°C warmer than Sunāmganj, with 733 mm of rain.
Among the 63 cities listed in Bangladesh, Sunāmganj ranks 59th of 63 for the warmest August highs and 62nd of 63 for the driest August (rainfall, lowest first). The mean August high of those 63 cities is 30.7°C; Sunāmganj is 1.3°C cooler than that mean.
From August to September, average highs fall by 0.2°C to 29.2°C, and monthly rainfall falls from 723 mm to 521 mm.
The annual picture
August 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
Sunāmganj climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 22.7°C10.6°C | 10.6°C | 9.5 | 1.6 | 10.811 h |
| February | 24.9°C12.9°C | 12.9°C | 38 | 4.5 | 11.311 h |
| March | 27.9°C16.8°C | 16.8°C | 155 | 10.2 | 12.012 h |
| April | 28.6°C20.3°C | 20.3°C | 519 | 21.9 | 12.713 h |
| May | 29.0°C22.5°C | 22.5°C | 751 | 28.1 | 13.313 h |
| June | 29.0°C24.2°C | 24.2°C | 918 | 29.6 | 13.714 h |
| July | 29.0°C24.5°C | 24.5°C | 916 | 30.8 | 13.514 h |
| August, selected | 29.4°C24.6°C | 24.6°C | 723 | 30.6 | 13.013 h |
| September | 29.2°C23.9°C | 23.9°C | 521 | 27.8 | 12.312 h |
| October | 28.7°C21.1°C | 21.1°C | 219 | 15.7 | 11.612 h |
| November | 26.8°C16.2°C | 16.2°C | 28 | 2.8 | 10.911 h |
| December | 24.0°C12.3°C | 12.3°C | 11 | 1.2 | 10.611 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
August in nearby cities
- Sylhet in AugustBangladesh · 51 kmHigh 30.4°C · Low 25.1°C · 733 mm rain
- Netrakona in AugustBangladesh · 71 kmHigh 31.0°C · Low 25.3°C · 422 mm rain
- Shillong in AugustIndia · 74 kmHigh 23.5°C · Low 18.9°C · 558 mm rain
- Habiganj in AugustBangladesh · 77 kmHigh 31.0°C · Low 25.4°C · 341 mm rain
- Kishorganj in AugustBangladesh · 94 kmHigh 31.1°C · Low 25.5°C · 317 mm rain
- Mymensingh in AugustBangladesh · 106 kmHigh 31.1°C · Low 25.4°C · 392 mm rain
- Nagar Naluākot in AugustBangladesh · 120 kmHigh 31.1°C · Low 25.6°C · 286 mm rain
- Bhairab Bāzār in AugustBangladesh · 121 kmHigh 31.1°C · Low 25.6°C · 277 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 Sunāmganj) is explained once on the Sunāmganj year overview and on the Sources, method and limits page.