Sylhet weather in March

In March, Sylhet sees average daytime highs of 29°C and overnight lows near 18°C, with 187 mm of rain across 11.2 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 64% of the time in March, and the air most often feels humid.

Daylight stretches from about 11 h 30 min at the start of March to 12 h 12 min by month's end. Set against the rest of the year, March is Sylhet's 5th-clearest and 4th-windiest month. For the whole year in context, see Sylhet's year-round climate.

Daytime high
29°
8th warmest
Overnight low
18°
5th coldest
Rainfall
187 mm
11.2 wet days
Daylight
11 h 48 min
6:08 AM – 5:57 PM
Cloud cover
34%
5th clearest
Wind
4 km/h
4th windiest
Solar energy
5.31 kWh/m²
Travel score
6.1
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 March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical March day in Sylhet reaches about 29°C in the afternoon and slips back to 18°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 32°C. Set against its neighbours, March runs about 3°C warmer than February and about 1°C cooler than April.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12716
22716
32816
42816
52816
62816
72816
82816
92817
102817
112817
122917
132917
142917
152917
162918
172918
182918
192918
202918
212918
222918
232919
242919
252919
262919
272919
282919
292919
302919
312919

How March really feels in Sylhet

Once humidity and wind are folded in, March averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

March sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Sylhet weather by month

How March compares with the rest of the year at a glance. March is the 8th-warmest and 8th-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 March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 16% of March, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18812
28812
38713
48713
58713
68713
78713
88614
98614
108515
118515
128515
138317
148317
158317
168119
178119
188020
197921
207822
217624
227624
237525
247327
257228
267129
277030
286832
296832
306733
316733

Chance of precipitation in March

Any precipitation

Sylhet gets around 187 mm of rain over 11.2 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 37% and peaks near 62% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
122
222
322
423
523
623
724
824
925
1025
1126
1227
1328
1429
1530
1632
1734
1836
1938
2040
2142
2244
2347
2449
2551
2653
2755
2857
2959
3060
3162

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the humid band about 36% of days. Sticky, muggy-or-worse air turns up on roughly 40% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1133736140
2123637150
3113538150
4113438161
5103339171
693240181
793140191
883041201
982941211
1072841231
1172741242
1262641252
1362441262
1462341283
1552141293
1651941314
1741841325
1841640346
1941439366
2031338387
2131237408
2231135439
23210334510
2428324711
2527304912
2626285113
2715265414
2815245515
2914225617
3013205818
3113195720

Wind in March

Winds average 4 km/h in March.

Across March, daily wind ranges from about 4 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
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 30 min at the start of March to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over March. Sunrise moves from 6:22 AM to 5:52 AM, and sunset from 5:49 PM to 6:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:225:49
211.56:215:50
311.56:205:50
411.56:195:51
511.56:185:51
611.66:185:52
711.66:175:52
811.66:165:53
911.66:155:53
1011.76:145:54
1111.76:135:54
1211.76:125:55
1311.76:115:55
1411.86:105:56
1511.86:095:56
1611.86:085:57
1711.86:075:57
1811.96:065:58
1911.96:045:58
2011.96:035:59
2111.96:025:59
2212.06:015:59
2312.06:006:00
2412.05:596:00
2512.05:586:01
2612.15:576:01
2712.15:566:02
2812.15:556:02
2912.15:546:02
3012.25:536:03
3112.25:526:03

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.31 kWh/m² — the sunniest month for solar.

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 — March's 5.31 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.2Bright
245.2Bright
255.2Bright
265.1Bright
275.1Bright
285.1Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in March

Hazard calendar for Sylhet

In seasonPeak

None of Sylhet's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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 March a good time to visit Sylhet?

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

6.1
Sightseeing
5th-best month of the year
7.1
Beach & pool
5th-best month of the year

March is a reasonable time to visit Sylhet for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Sylhet in March

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

In March, Sylhet sees daytime highs around 29°C and nights near 18°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Sylhet in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 8 — enough to warrant sun protection. 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 March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March 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
March 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).