Chittagong weather in April

In April, Chittagong sees average daytime highs of 29°C and overnight lows near 26°C, with 98 mm of rain across 9.4 wet days and about 12.5 hours of daylight. It is the 2nd-warmest and 7th-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 70% of the time in April, and the air most often feels miserable.

Daylight stretches from about 12 h 12 min at the start of April to 12 h 48 min by month's end. Set against the rest of the year, April is Chittagong's 6th-clearest and 6th-windiest month. For the whole year in context, see Chittagong's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
26°
7th coldest
Rainfall
98 mm
9.4 wet days
Daylight
12 h 30 min
5:37 AM – 6:08 PM
Cloud cover
31%
6th clearest
Wind
15 km/h
6th windiest
Solar energy
6.16 kWh/m²
Travel score
5.7
out of 10

Chittagong is second largest city of Bangladesh, situated at the southwestern part of the country.

Air quality
Severe
PM2.5 56.4 µg/m³ · 2018
Density
24,351/km²
people per km²

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

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

A typical April day in Chittagong reaches about 29°C in the afternoon and slips back to 26°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, April runs about 2°C warmer than March and on par with May.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12925
22925
32925
42925
52926
62926
72926
82926
92926
102926
112926
122926
132926
142926
152926
162926
173026
183026
193026
203027
213027
223027
233027
243027
253027
263027
273027
283027
293027
303027

How April really feels in Chittagong

Once humidity and wind are folded in, April averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Chittagong weather by month

How April compares with the rest of the year at a glance. April is the 2nd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan23° / 18°60.810.89.3
Feb25° / 20°141.811.29.0
Mar28° / 24°464.411.87.6
Apr29° / 26°989.412.55.7
May30° / 27°29120.513.14.1
Jun29° / 27°58326.813.33.1
Jul29° / 27°60629.313.23.0
Aug29° / 27°45428.712.83.1
Sep29° / 27°34025.612.13.3
Oct29° / 26°20317.311.54.8
Nov27° / 23°483.910.97.8
Dec25° / 19°121.210.79.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 70% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 13% of April, with mostly cloudy or overcast conditions the remaining 17%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18614
28614
38614
48515
58515
68515
78515
88515
98515
108515
118416
128416
138416
148416
158317
168317
178317
188317
198218
208218
218119
228119
238119
248020
257921
267921
277822
287822
297822
307723

Chance of precipitation in April

Any precipitation

Chittagong gets around 98 mm of rain over 9.4 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 33% and peaks near 48% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
128
228
328
428
528
628
727
827
927
1026
1127
1227
1327
1428
1529
1630
1730
1831
1932
2033
2134
2235
2337
2438
2540
2642
2743
2845
2947
3048

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the miserable band about 66% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1155935
2145738
3145441
4135244
5135046
6034849
7024553
8024355
9024058
10023860
11013564
12013366
13013168
14012970
15012871
16012772
17002674
18002575
19002476
20002476
21002476
22002377
23002377
24002377
25002377
26002278
27002278
28002179
29002080
30001981

Wind in April

Winds average 15 km/h in April.

Across April, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 12 min at the start of April to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over April. Sunrise moves from 5:52 AM to 5:26 AM, and sunset from 6:03 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:526:03
212.25:516:03
312.25:506:04
412.35:496:04
512.35:486:04
612.35:476:05
712.35:466:05
812.35:456:06
912.45:446:06
1012.45:436:06
1112.45:426:07
1212.45:416:07
1312.55:406:07
1412.55:396:08
1512.55:386:08
1612.55:376:08
1712.55:376:09
1812.65:366:09
1912.65:356:09
2012.65:346:10
2112.65:336:10
2212.65:326:11
2312.75:316:11
2412.75:316:11
2512.75:306:12
2612.75:296:12
2712.75:286:13
2812.85:286:13
2912.85:276:13
3012.85:266:14

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.16 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.87 kWh/m² to a high of 6.16 kWh/m² in April across the year — April's 6.16 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.2Intense
86.2Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.0Intense
276.0Intense
286.0Intense
296.0Bright
306.0Bright
Planning a trip in April

Hazard calendar for Chittagong

In seasonPeak

In April, Chittagong sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

Chittagong sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Chittagong's monsoon runs May–September, when most of the year's rain falls.

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

Is April a good time to visit Chittagong?

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

5.7
Sightseeing
6th-best month of the year
7.4
Beach & pool
5th-best month of the year

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

What to pack for Chittagong in April

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

In April, Chittagong sees daytime highs around 29°C and nights near 26°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

Sea temperature near Chittagong in April

The nearest coast averages about 28°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 22 km away) is warmest in October at about 29°C and coldest in January near 22°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb23Refreshing
Mar26Warm
Apr28Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov27Warm
Dec24Refreshing

UV index in Chittagong in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Chittagong peaks around July 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 21UV 13Jan 10UV 6
UV index (midday)Level
Jan6High
Feb7High
Mar8Very high
Apr8Very high
May10Extreme
Jun8Very high
Jul13Extreme
Aug11Extreme
Sep9Very high
Oct6High
Nov7High
Dec6High

Air quality in Chittagong in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Chittagong is worst in January — around 117 µg/m³ PM2.5 (unhealthy), about 5.3× the cleanest month (July, 22 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Chittagong's WHO annual average of 56.4 µg/m³.

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 16114 µg/m³Jul 1723 µg/m³
PM2.5 (µg/m³)Level
Jan117Unhealthy
Feb92Unhealthy
Mar79Unhealthy
Apr49Poor
May34Moderate
Jun27Moderate
Jul22Moderate
Aug26Moderate
Sep26Moderate
Oct43Poor
Nov67Unhealthy
Dec95Unhealthy
Location & terrain

Where is Chittagong?

Chittagong sits at 22.3°N, 91.8°E, 15 m above sea level, in Bangladesh. The nearest listed city is Cox's Bazar, 102 km away.

Cox's BazarBarisalButhidaung TownKyauktawDhakaBagerhatKhulna

Topography around Chittagong

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

Within 3 km, the terrain around Chittagong has only modest variations in elevation — a maximum elevation change of 60 m around an average of 12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 96 m; within 80 km, large variations in elevation — a maximum elevation change of 893 m.

The land around Chittagong is covered by artificial surfaces (62%) and trees (22%) within 3 km, trees (43%) and water (27%) within 16 km, and trees (53%) and water (33%) within 80 km.

3 km
60 m
16 km
96 m
80 km
893 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Cox's Bazar 102 km · Barisal 156 km · Buthidaung Town 178 km · Hakha 186 km · Kyauktaw 204 km · Dhaka 211 km · Bagerhat 213 km · Khulna 239 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 Chittagong (22.3384°, 91.8317°, elevation 15 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).