Sylhet weather in July

In July, Sylhet sees average daytime highs of 31°C and overnight lows near 25°C, with 941 mm of rain across 30.8 wet days and about 13.4 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 1% of the time in July, and the air most often feels miserable.

Daylight stretches from about 13 h 30 min at the start of July to 13 h 12 min by month's end. Set against the rest of the year, July is Sylhet's 12th-clearest and 1st-windiest month. For the whole year in context, see Sylhet's year-round climate.

Daytime high
31°
3rd warmest
Overnight low
25°
11th coldest
Rainfall
941 mm
30.8 wet days
Daylight
13 h 24 min
5:16 AM – 6:40 PM
Cloud cover
93%
12th clearest
Wind
5 km/h
1st windiest
Solar energy
3.23 kWh/m²
Travel score
2.3
out of 10

Sylhet is capital and largest city of Sylhet Division, Bangladesh.

Air quality
Severe
PM2.5 59.8 µg/m³ · 2018
Density
8,943/km²
people per km²
Founded
1867

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical July day in Sylhet reaches about 31°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 33°C. Set against its neighbours, July runs on par with June and on par with August.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
153025
163125
173125
183125
193125
203125
213125
223125
233126
243126
253126
263126
273126
283126
293126
303126
313126

How July really feels in Sylhet

Once humidity and wind are folded in, July averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
3 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Sylhet weather by month

How July compares with the rest of the year at a glance. July is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 11°101.810.69.0
Feb26° / 14°484.611.18.2
Mar29° / 18°18711.211.86.1
Apr29° / 21°56021.412.64.0
May30° / 23°75927.613.23.1
Jun30° / 25°95329.513.52.5
Jul31° / 25°94130.813.42.3
Aug31° / 26°73330.712.92.3
Sep31° / 25°52327.612.22.6
Oct30° / 23°21714.811.44.7
Nov28° / 17°282.310.87.8
Dec25° / 13°121.110.59.1

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in July, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 2% of July, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1397
2397
3298
4298
5298
6298
7298
8298
9298
10298
11298
12298
13298
14397
15397
16397
17397
18397
19397
20397
21496
22496
23496
24496
25496
26397
27397
28397
29397
30397
31397

Chance of precipitation in July

Any precipitation

Sylhet gets around 941 mm of rain over 30.8 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 99% and peaks near 100% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
1100
2100
3100
4100
599
699
799
899
999
1099
1199
1299
1399
1499
1599
1699
1799
1899
1999
2099
2199
2299
2399
2499
2599
2699
2799
2899
2999
3099
3199

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the miserable band about 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1199
2199
3199
4199
5199
6199
7199
8199
9199
10298
11298
12298
13298
14298
15298
16298
17298
18298
19298
20298
21298
22298
23298
24298
25298
26298
27298
28298
29298
30298
31298

Wind in July

Winds average 5 km/h in July, the windiest month of the year.

Across July, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 13 h 30 min at the start of July to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over July. Sunrise moves from 5:10 AM to 5:23 AM, and sunset from 6:42 PM to 6:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:106:42
213.55:106:42
313.55:116:42
413.55:116:42
513.55:116:42
613.55:126:42
713.55:126:42
813.55:126:42
913.55:136:42
1013.55:136:41
1113.55:146:41
1213.55:146:41
1313.45:156:41
1413.45:156:41
1513.45:156:41
1613.45:166:40
1713.45:166:40
1813.45:176:40
1913.45:176:40
2013.45:186:39
2113.35:186:39
2213.35:196:39
2313.35:196:38
2413.35:206:38
2513.35:206:37
2613.35:216:37
2713.35:216:36
2813.25:216:36
2913.25:226:35
3013.25:226:35
3113.25:236:34

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 3.23 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.23 kWh/m² to a high of 5.31 kWh/m² in March across the year — July's 3.23 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.0Moderate
23.0Moderate
33.0Moderate
43.0Moderate
53.0Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.1Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.2Moderate
173.2Moderate
183.2Moderate
193.2Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.4Moderate
243.4Moderate
253.4Moderate
263.5Moderate
273.5Moderate
283.5Moderate
293.5Moderate
303.5Moderate
313.6Moderate
Planning a trip in July

Hazard calendar for Sylhet

In seasonPeak

In July, Sylhet sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Sylhet's monsoon runs April–September, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Sylhet?

Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.3
Sightseeing
11th-best month of the year
3.4
Beach & pool
11th-best month of the year

July is a weaker month for outdoor sightseeing in Sylhet.

What to pack for Sylhet in July

From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In July, Sylhet sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. About 31 days see rain.

light clothesrain gear

UV index in Sylhet in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sylhet peaks around July 21 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 17 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highVery highExtremeHighJul 21UV 12Jan 17UV 4
UV index (midday)Level
Jan4Moderate
Feb5Moderate
Mar8Very high
Apr7High
May8Very high
Jun6High
Jul12Extreme
Aug10Extreme
Sep11Extreme
Oct6High
Nov6High
Dec5Moderate

Air quality in Sylhet in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Sylhet is worst in January — around 100 µg/m³ PM2.5 (unhealthy), about 4.3× the cleanest month (July, 23 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Sylhet's WHO annual average of 59.8 µg/m³.

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 2099 µg/m³Jul 1824 µg/m³
PM2.5 (µg/m³)Level
Jan100Unhealthy
Feb94Unhealthy
Mar95Unhealthy
Apr62Unhealthy
May44Poor
Jun32Moderate
Jul23Moderate
Aug30Moderate
Sep36Poor
Oct51Poor
Nov67Unhealthy
Dec83Unhealthy
Location & terrain

Where is Sylhet?

Sylhet sits at 24.9°N, 91.9°E, 26 m above sea level, in Bangladesh. The nearest listed city is Mymensingh, 149 km away.

MymensinghDhakaSamdrup JongkharRangpurChittagong

Topography around Sylhet

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sylhet.

Within 3 km, the terrain around Sylhet has only modest variations in elevation — a maximum elevation change of 55 m around an average of 19 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 82 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,953 m.

The land around Sylhet is covered by trees (52%) and artificial surfaces (41%) within 3 km, cropland (53%) and trees (39%) within 16 km, and trees (46%) and cropland (40%) within 80 km.

3 km
55 m
16 km
82 m
80 km
1,953 m
treesgrasslandcroplandartificial surfaceswaterwetland
July weather nearby: Mymensingh 149 km · Dhaka 199 km · Samdrup Jongkhar 215 km · Tamu 258 km · Mongar 272 km · Trashigang 273 km · Rangpur 280 km · Chittagong 285 km

Bangladesh travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / C / D / G
220 V · 50 Hz
Prices
≈ 25% of US
price level, 2025
GDP per capita
$2,597
2025
Happiness
4.3 / 10
World Happiness, 2025
Safe drinking water
59%
of population, 2024
Homicide rate
2.3
per 100k, 2018
Road deaths
15.3
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Moderate
EF EPI 506
Religion
Muslim 91%Hindu 8%other 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sylhet (24.899°, 91.872°, elevation 26 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).