Climate averages 1991–2020
Sirajganj weather
in September.
A hot, very wet month: the 7th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Sirajganj: daytime highs average 30.6°C and nights cool to about 25.2°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 252 mm of rain on roughly 25 days, which makes September a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 19 min on an average September day.
The nearest other city in this atlas is Tangail (31 km away). In September its highs average 30.8°C, about as warm as Sirajganj, with 251 mm of rain.
Among the 63 cities listed in Bangladesh, Sirajganj ranks joint 33rd of 63 for the warmest September highs and joint 15th of 63 for the driest September (rainfall, lowest first). The mean September high of those 63 cities is 30.5°C; Sirajganj is 0.1°C warmer than that mean.
From September to October, average highs fall by 0.9°C to 29.8°C, and monthly rainfall falls from 252 mm to 139 mm.
The annual picture
September 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
Sirajganj climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 23.4°C12.9°C | 12.9°C | 9.2 | 1.5 | 10.811 h |
| February | 26.7°C15.5°C | 15.5°C | 20 | 2.7 | 11.311 h |
| March | 31.0°C19.7°C | 19.7°C | 48 | 5.5 | 12.012 h |
| April | 32.3°C23.0°C | 23.0°C | 153 | 14.6 | 12.713 h |
| May | 31.8°C24.6°C | 24.6°C | 339 | 22.7 | 13.313 h |
| June | 31.4°C25.8°C | 25.8°C | 389 | 26.3 | 13.614 h |
| July | 30.8°C25.8°C | 25.8°C | 340 | 28.0 | 13.513 h |
| August | 30.9°C25.8°C | 25.8°C | 285 | 27.9 | 13.013 h |
| September, selected | 30.6°C25.2°C | 25.2°C | 252 | 24.5 | 12.312 h |
| October | 29.8°C23.0°C | 23.0°C | 139 | 12.4 | 11.612 h |
| November | 27.6°C18.5°C | 18.5°C | 18 | 1.2 | 11.011 h |
| December | 24.6°C14.6°C | 14.6°C | 8.1 | 0.8 | 10.711 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
September in nearby cities
- Tangail in SeptemberBangladesh · 31 kmHigh 30.8°C · Low 25.1°C · 251 mm rain
- Shāhzādpur in SeptemberBangladesh · 33 kmHigh 30.9°C · Low 25.3°C · 247 mm rain
- Sarishābāri in SeptemberBangladesh · 35 kmHigh 30.7°C · Low 25.0°C · 275 mm rain
- Nāgarpur in SeptemberBangladesh · 48 kmHigh 30.9°C · Low 25.2°C · 262 mm rain
- Bogra in SeptemberBangladesh · 55 kmHigh 30.7°C · Low 24.9°C · 273 mm rain
- Jamālpur, Bangladesh in SeptemberBangladesh · 57 kmHigh 30.7°C · Low 24.9°C · 286 mm rain
- Kaliakair in SeptemberBangladesh · 68 kmHigh 30.9°C · Low 25.0°C · 265 mm rain
- Pābna in SeptemberBangladesh · 69 kmHigh 30.8°C · Low 25.2°C · 250 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 Sirajganj) is explained once on the Sirajganj year overview and on the Sources, method and limits page.