Climate averages 1991–2020
Sylhet weather
in April.
A hot, very wet month: the 6th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a hot month in Sylhet: daytime highs average 29.4°C and nights cool to about 20.9°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 559 mm of rain on roughly 21 days, which makes April a very wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 43 min on an average April day.
The nearest other city in this atlas is Sunāmganj (51 km away). In April its highs average 28.6°C, 0.7°C cooler than Sylhet, with 519 mm of rain.
Among the 63 cities listed in Bangladesh, Sylhet ranks 62nd of 63 for the warmest April highs and 63rd of 63 for the driest April (rainfall, lowest first). The mean April high of those 63 cities is 32.6°C; Sylhet is 3.2°C cooler than that mean.
From April to May, average highs rise by 0.4°C to 29.8°C, and monthly rainfall rises from 559 mm to 759 mm.
The annual picture
April 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, selected | 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 | 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
April in nearby cities
- Sunāmganj in AprilBangladesh · 51 kmHigh 28.6°C · Low 20.3°C · 519 mm rain
- Habiganj in AprilBangladesh · 74 kmHigh 31.0°C · Low 22.3°C · 333 mm rain
- Shillong in AprilIndia · 74 kmHigh 22.0°C · Low 14.2°C · 275 mm rain
- Silchar in AprilIndia · 94 kmHigh 30.1°C · Low 21.1°C · 252 mm rain
- Netrakona in AprilBangladesh · 115 kmHigh 30.5°C · Low 21.8°C · 317 mm rain
- Kishorganj in AprilBangladesh · 121 kmHigh 31.4°C · Low 22.5°C · 267 mm rain
- Brāhmanbāria in AprilBangladesh · 128 kmHigh 31.9°C · Low 23.1°C · 233 mm rain
- Ashuganj City in AprilBangladesh · 129 kmHigh 31.8°C · Low 23.1°C · 233 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.