Sylhet weather in April
Bangladesh

April in Sylhet: hot, soaked, with poor air quality — a gamble, with 18 rainy days.
#6 of 12 months in Sylhet · #1269 of 1383 destinations to visit in April · comfort 59/100 (tier D)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sylhet in April
No notes yet. Open Sylhet on the map to add the first one.
Sylhet climate normals — April
| Daytime high | 31°C / 87°F | 🥵 hot |
|---|---|---|
| Nighttime low | 21°C / 70°F | |
| Rainfall | 227 mm / 8.9 in | ⛈ soaked |
| Rainy days | 18 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 22°C / 71°F | |
| Sunshine | 10 h/day | |
| Daylight | 12.8 h | |
| Wind | 8 km/h / 5 mph | |
| Air quality (US AQI) | 129 | 😷 poor |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Sylhet in April
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 3 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Sylhet's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherSylhet's weather peaks December–February, best around January.
Best weatherFair weatherToughest weather
Where is Sylhet?
Sylhet in April — FAQ
- Is April a good time to visit Sylhet?
- April in Sylhet: hot, soaked, with poor air quality — a gamble, with 18 rainy days. It ranks #6 of 12 months for Sylhet on SeasonMap's comfort score (59/100).
- What is the weather like in Sylhet in April?
- In April, Sylhet averages a daily high of 30.5°C and a low of 20.9°C, with about 227 mm of rain over roughly 18.4 rainy days.
- What is the air quality in Sylhet in April?
- Sylhet has a mean US Air Quality Index of about 129 in April.