SeasonMapSylhet weather in July
Bangladesh
July in Sylhet: hot, soaked, with muggy air — not the time — 31 rainy days.
#11 of 12 months in Sylhet · #1292 of 1383 destinations to visit in July · comfort 37/100 (tier F)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sylhet in July
No notes yet. Open Sylhet on the map to add the first one.
Sylhet climate normals — July
| Daytime high | 31°C / 87°F | 🥵 hot |
|---|---|---|
| Nighttime low | 25°C / 78°F | |
| Rainfall | 729 mm / 28.7 in | ⛈ soaked |
| Rainy days | 31 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 25°C / 78°F | |
| Sunshine | 5.8 h/day | |
| Daylight | 13.5 h | |
| Wind | 8 km/h / 5 mph | |
| Air quality (US AQI) | 58 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Sylhet in July
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.
Peak crowdstravelers describe it as peak season, school holidays in 5 of the markets that fill it
Sourced from traveler notes: “…direct that despite this, June through September counts as high season for some of Sylhet's signature natural attractions specific…” — Tripadvisor community
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).
Toughest weatherSylhet's weather peaks December–February, best around January.
July coincides with Flash-flood season.
Best weatherFair weatherToughest weather
What's on in Sylhet in July
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Flash-flood season
15 May – 30 Sep · usuallyClosuresThe Surma and Kushiyara rivers regularly burst their banks between May and September: the 2022 flood submerged most of Sylhet and neighbouring Sunamganj district, shut the airport and railway station, and displaced close to half a million people. Smaller flash floods recur most years. Source ↗
- Nature
Ratargul submerged
1 Jun – 30 Sep · usuallyMonsoonBangladesh's only freshwater swamp forest floods to 15-20 feet during the monsoon, turning the trees into a paddled maze reachable only by small wooden boat. Outside these four months the water drops and much of the forest floor is walkable clay. Source ↗
- Season
Wet season
MonsoonRisk31 rainy days and about 729 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Where is Sylhet?
Sylhet in July — FAQ
- Is July a good time to visit Sylhet?
- July in Sylhet: hot, soaked, with muggy air — not the time — 31 rainy days. It ranks #11 of 12 months for Sylhet on SeasonMap's comfort score (37/100).
- What is the weather like in Sylhet in July?
- In July, Sylhet averages a daily high of 30.6°C and a low of 25.4°C, with about 728.8 mm of rain over roughly 30.6 rainy days.
- What is the air quality in Sylhet in July?
- Sylhet has a mean US Air Quality Index of about 58 in July.