Climate averages 1991–2020
Khulna weather
in September.
A hot, very wet month: the joint 6th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Khulna: daytime highs average 30.5°C and nights cool to about 25.3°C. By daytime temperature it is the joint 6th warmest of the 12 months.
Expect about 235 mm of rain on roughly 26 days, which makes September a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 18 min on an average September day.
The nearest other city in this atlas is Bagerhat (29 km away). In September its highs average 30.5°C, about as warm as Khulna, with 236 mm of rain.
Among the 63 cities listed in Bangladesh, Khulna ranks joint 41st of 63 for the warmest September highs and joint 1st of 63 for the driest September (rainfall, lowest first). The mean September high of those 63 cities is 30.5°C; Khulna is level with that mean.
From September to October, average highs fall by 0.5°C to 30.0°C, and monthly rainfall falls from 235 mm to 136 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
Khulna climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 24.9°C13.6°C | 13.6°C | 8.1 | 1.3 | 10.911 h |
| February | 28.2°C16.8°C | 16.8°C | 19 | 2.7 | 11.411 h |
| March | 32.4°C21.5°C | 21.5°C | 40 | 5.1 | 12.012 h |
| April | 34.0°C24.8°C | 24.8°C | 115 | 11.4 | 12.713 h |
| May | 33.4°C26.3°C | 26.3°C | 188 | 15.7 | 13.213 h |
| June | 31.7°C26.6°C | 26.6°C | 306 | 24.3 | 13.514 h |
| July | 30.6°C26.0°C | 26.0°C | 349 | 29.6 | 13.413 h |
| August | 30.5°C25.8°C | 25.8°C | 293 | 29.0 | 12.913 h |
| September, selected | 30.5°C25.3°C | 25.3°C | 235 | 25.6 | 12.312 h |
| October | 30.0°C23.4°C | 23.4°C | 136 | 14.5 | 11.612 h |
| November | 28.2°C19.1°C | 19.1°C | 37 | 2.2 | 11.111 h |
| December | 25.6°C15.1°C | 15.1°C | 10 | 0.9 | 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
September in nearby cities
- Bagerhat in SeptemberBangladesh · 29 kmHigh 30.5°C · Low 25.3°C · 236 mm rain
- Tungipara in SeptemberBangladesh · 36 kmHigh 30.6°C · Low 25.1°C · 261 mm rain
- Sātkhira in SeptemberBangladesh · 52 kmHigh 30.5°C · Low 25.6°C · 242 mm rain
- Jessore in SeptemberBangladesh · 54 kmHigh 30.8°C · Low 25.0°C · 235 mm rain
- Basirhat City in SeptemberIndia · 75 kmHigh 30.6°C · Low 25.5°C · 240 mm rain
- Madaripur in SeptemberBangladesh · 77 kmHigh 30.6°C · Low 25.3°C · 255 mm rain
- Bangaon in SeptemberIndia · 80 kmHigh 30.8°C · Low 25.2°C · 241 mm rain
- Barishal in SeptemberBangladesh · 83 kmHigh 30.2°C · Low 25.4°C · 262 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 Khulna) is explained once on the Khulna year overview and on the Sources, method and limits page.