Climate averages 1991–2020
Sylhet weather
in October.
A hot, very wet month: the 7th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in Sylhet: daytime highs average 29.3°C and nights cool to about 22.1°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 217 mm of rain on roughly 15 days, which makes October a very wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 35 min on an average October day.
The nearest other city in this atlas is Sunāmganj (51 km away). In October its highs average 28.7°C, 0.6°C cooler than Sylhet, with 219 mm of rain.
Among the 63 cities listed in Bangladesh, Sylhet ranks joint 59th of 63 for the warmest October highs and 62nd of 63 for the driest October (rainfall, lowest first). The mean October high of those 63 cities is 29.9°C; Sylhet is 0.6°C cooler than that mean.
From October to November, average highs fall by 2.0°C to 27.3°C, and monthly rainfall falls from 217 mm to 28 mm.
The annual picture
October 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
Sylhet climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 23.5°C11.6°C | 11.6°C | 10 | 1.8 | 10.811 h |
| February | 25.8°C13.7°C | 13.7°C | 48 | 4.7 | 11.311 h |
| March | 28.6°C17.4°C | 17.4°C | 186 | 11.2 | 12.012 h |
| April | 29.4°C20.9°C | 20.9°C | 559 | 21.4 | 12.713 h |
| May | 29.8°C23.1°C | 23.1°C | 759 | 27.6 | 13.313 h |
| June | 30.0°C24.7°C | 24.7°C | 953 | 29.5 | 13.714 h |
| July | 30.1°C25.0°C | 25.0°C | 940 | 30.8 | 13.514 h |
| August | 30.4°C25.1°C | 25.1°C | 733 | 30.7 | 13.013 h |
| September | 30.1°C24.5°C | 24.5°C | 523 | 27.6 | 12.312 h |
| October, selected | 29.3°C22.1°C | 22.1°C | 217 | 14.8 | 11.612 h |
| November | 27.3°C17.3°C | 17.3°C | 28 | 2.3 | 11.011 h |
| December | 24.7°C13.3°C | 13.3°C | 12 | 1.0 | 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
October in nearby cities
- Sunāmganj in OctoberBangladesh · 51 kmHigh 28.7°C · Low 21.1°C · 219 mm rain
- Habiganj in OctoberBangladesh · 74 kmHigh 30.0°C · Low 22.8°C · 163 mm rain
- Shillong in OctoberIndia · 74 kmHigh 21.7°C · Low 15.3°C · 224 mm rain
- Silchar in OctoberIndia · 94 kmHigh 29.5°C · Low 21.9°C · 168 mm rain
- Netrakona in OctoberBangladesh · 115 kmHigh 29.7°C · Low 22.3°C · 147 mm rain
- Kishorganj in OctoberBangladesh · 121 kmHigh 29.9°C · Low 22.7°C · 150 mm rain
- Brāhmanbāria in OctoberBangladesh · 128 kmHigh 30.1°C · Low 23.0°C · 162 mm rain
- Ashuganj City in OctoberBangladesh · 129 kmHigh 30.0°C · Low 23.0°C · 162 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 Sylhet) is explained once on the Sylhet year overview and on the Sources, method and limits page.