Climate averages 1991–2020
Sylhet weather
in January.
A warm, very dry month: the coolest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
January is a warm month in Sylhet: daytime highs average 23.5°C and nights cool to about 11.6°C. By daytime temperature it is the coolest month of the year.
Expect about 10 mm of rain on roughly 2 days, which makes January a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 47 min on an average January day.
The nearest other city in this atlas is Sunāmganj (51 km away). In January its highs average 22.7°C, 0.8°C cooler than Sylhet, with 9.5 mm of rain.
Among the 63 cities listed in Bangladesh, Sylhet ranks joint 52nd of 63 for the warmest January highs and 48th of 63 for the driest January (rainfall, lowest first). The mean January high of those 63 cities is 24.1°C; Sylhet is 0.6°C cooler than that mean.
From January to February, average highs rise by 2.2°C to 25.8°C, and monthly rainfall rises from 10 mm to 48 mm.
The annual picture
January 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, selected | 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 | 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
January in nearby cities
- Sunāmganj in JanuaryBangladesh · 51 kmHigh 22.7°C · Low 10.6°C · 9.5 mm rain
- Habiganj in JanuaryBangladesh · 74 kmHigh 24.2°C · Low 12.8°C · 8.5 mm rain
- Shillong in JanuaryIndia · 74 kmHigh 15.7°C · Low 6.8°C · 22 mm rain
- Silchar in JanuaryIndia · 94 kmHigh 23.8°C · Low 11.8°C · 12 mm rain
- Netrakona in JanuaryBangladesh · 115 kmHigh 24.1°C · Low 11.9°C · 8.8 mm rain
- Kishorganj in JanuaryBangladesh · 121 kmHigh 24.3°C · Low 12.7°C · 8.1 mm rain
- Brāhmanbāria in JanuaryBangladesh · 128 kmHigh 24.4°C · Low 12.9°C · 6.5 mm rain
- Ashuganj City in JanuaryBangladesh · 129 kmHigh 24.4°C · Low 13.0°C · 6.5 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.