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When to Visit Chittagong

Climate guide & best times to travel

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Monthly Climate Data for Chittagong Average temperature and rainfall by month Climate Overview 9°C 16°C 23°C 30°C 37°C Rainfall (mm) 0 359 718 Jan Jan: 25.0°C high, 14.0°C low, 10mm rain Feb Feb: 28.0°C high, 16.0°C low, 20mm rain Mar Mar: 31.0°C high, 21.0°C low, 48mm rain Apr Apr: 32.0°C high, 24.0°C low, 104mm rain May May: 32.0°C high, 25.0°C low, 333mm rain Jun Jun: 31.0°C high, 25.0°C low, 627mm rain Jul Jul: 31.0°C high, 25.0°C low, 719mm rain Aug Aug: 31.0°C high, 25.0°C low, 533mm rain Sep Sep: 31.0°C high, 25.0°C low, 282mm rain Oct Oct: 31.0°C high, 24.0°C low, 231mm rain Nov Nov: 30.0°C high, 20.0°C low, 48mm rain Dec Dec: 27.0°C high, 16.0°C low, 10mm rain Temperature Rainfall
Chittagong's weather is a tug of war. The Bay of Bengal pushes in from the south. The Chittagong Hill Tracts rise to the east. These two forces create drama far beyond Bangladesh's mild latitude. The city lives by two main seasons with two short shoulders. November through February brings the dry spell. Think mild subtropical winter anyone can handle. June to late September is the monsoon. This season is a different beast entirely. Compared to Dhaka, the difference is volume. July alone dumps 719mm of rain. Most European cities do not see that in a year. June and August are close behind. Temperatures stay steady year round. Moisture is the wild card. Peak monsoon means water everywhere. It clings to the air. It slicks the streets. It lashes sideways off the Bay. The Hill Tracts squeeze out extra rain inland. The city still takes the coastal hit. April and May turn the heat up. May peaks at 32°C (90°F). Nights barely cool to 25°C (77°F). Early storms arrive first. By late May the downpours are constant. October and November flip the script. The monsoon backs off. The air dries. Evenings cool. The cycle resets.

Best Time to Visit

Recommended timing for different travel styles.

Beach and relaxation
Book December through February. Patenga Beach and Naval Beach shine under clear skies. Humidity bottoms out. The Bay lies calmer. Monsoon chaos is a memory.
Cultural exploration
Walk from November through February. Chittagong War Cemetery, Ethnological Museum, Batali Hill all reward slow feet. Dry season streets feel different. July floods force detours. Older lanes beg for lingering. Rain gear kills that vibe.
Adventure and hiking
Day trip window: November through March. Mirsarai and the Hill Tracts stay open. Trails are firm. Views stay sharp. Flash flood risk is low. March is the edge. April heat and early storms complicate plans.
Budget travel
Late September through October is the bargain shoulder. Prices drop. Domestic crowds thin. Rain still falls. Yet it is gentler than peak monsoon. Vatiary Lake and nearby hills glow their greenest.

What to Pack

Essentials and seasonal recommendations for Chittagong.

Year-Round Essentials
lightweight, breathable clothing in natural fabrics
Cotton and linen beat the humidity. Synthetics trap heat and linger damp.
Sunscreen
Sunscreen matters every month. UV stays fierce between monsoon bursts. Clouds can lie.
A reusable water bottle
Water keeps you ahead of dehydration. Heat plus humidity sneaks up.
Insect repellent
Mosquito repellent earns its spot year-round. Wet months see them swarm.
A small first-aid kit with basic stomach remedies
A basic med kit covers most stomach grumbles from local food and water.
A secure daypack with a zip closure
A dry bag handles daily carry. It also shields gear from sudden rain.
A compact travel lock
is useful across a range of accommodation types.
cool dry season running from December through February
Clothing
a light layer for evenings: a thin jacket or long-sleeved shirt
Footwear
closed-toe shoes
Layering Tip
A light fleece tackles 14-16°C (57-62°F) nights in January and February. It packs small.
hot pre-monsoon period from March through May
Clothing
maximum breathability, loose-fitting clothing
Accessories
a wide-brimmed hat, extended sun protection
monsoon from June through September
Footwear
waterproof sandals or quick-dry footwear
Accessories
a compact but strong umbrella, not the flimsy folding variety
post-monsoon transition through October and November
Accessories
a light rain layer
Layering Tip
October asks little beyond dry-season kit. Keep a light rain shell handy. Lingering showers fade fast.
Plug Type
Type C, Type D, Type G
Voltage
220 volts
Adapter Note
North Americans need both a voltage converter and a plug adapter. UK or Australia arrivals usually need only a plug adapter for the Type C and D sockets they will meet most often. A universal adapter plus a small power strip solves most setups in one move.
Skip These Items
Skip heavy winter layers. Even January in Chittagong never warrants a real coat. Bulky gear wastes space that breathable fabrics use better. Leather or suede footwear suffers in this humidity. It also falters on uneven city streets every month. Thick denim or heavy canvas drags. Slow-dry fabrics become a nuisance during monsoon. Quick turnaround matters. Electronics without cases or sealed bags risk humidity from June through September. Store devices when idle during peak monsoon. Full waterproof rain suits are overkill. Heat renders them miserable outside the heaviest bursts. A sturdy umbrella handles most downpours with far less sweat.

Month-by-Month Guide

Climate conditions and crowd levels for each month of the year.

January

December brings Chittagong's finest weather. Highs reach 25°C (78°F). Lows sink to 14°C (57°F). Rainfall is only 10mm. Plans rarely wash out. The air is crystal clear.

High 25°C (78°F)
Low 14°C (57°F)
Rainfall 10mm
Crowds High
View Details →
February

January warms to 28°C (83°F) by day. Night lows rest at 16°C (62°F). Rainfall stays light at 20mm. The month remains pleasant. Heat has not yet taken over.

High 28°C (83°F)
Low 16°C (62°F)
Rainfall 20mm
Crowds High
View Details →
March

February starts the pre-monsoon climb. Daytime peaks near 31°C (87°F). Nights linger at 21°C (69°F). Rain jumps to 48mm. Showers come hard yet brief. The air thickens.

High 31°C (87°F)
Low 21°C (69°F)
Rainfall 48mm
Crowds Medium
View Details →
April

March locks in the heat. Daily highs hover at 32°C (89°F). Lows only slip to 24°C (75°F). Rain totals 104mm. Pre-monsoon bursts grow heavier. Keep afternoons flexible.

High 32°C (89°F)
Low 24°C (75°F)
Rainfall 104mm
Crowds Medium
View Details →
May

April is the sneaky transition. It is still pre-monsoon on paper. Yet 333mm of rain says otherwise. Highs stay at 32°C (90°F). Lows sit at 25°C (77°F). Humidity plus heat feels hotter than the reading.

High 32°C (90°F)
Low 25°C (77°F)
Rainfall 333mm
Crowds Low
View Details →
June

June unleashes the monsoon. Rainfall hits 627mm. Highs hold at 31°C (89°F). Lows refuse to budge from 25°C (78°F). The challenge is water, not warmth. Plan around rain, not against it.

High 31°C (89°F)
Low 25°C (78°F)
Rainfall 627mm
Crowds Low
View Details →
July

July tops the charts. Rainfall soars to 719mm. Highs ease to 31°C (87°F). Lows stay at 25°C (77°F). Rain arrives in long spells. Most travelers should skip this month.

High 31°C (87°F)
Low 25°C (77°F)
Rainfall 719mm
Crowds Low
View Details →
August

August eases slightly yet remains soggy. Rainfall drops to 533mm. Highs stay at 31°C (88°F). Lows linger at 25°C (78°F). Drainage systems strain. Portside flooding is common.

High 31°C (88°F)
Low 25°C (78°F)
Rainfall 533mm
Crowds Low
View Details →
September

September shows the monsoon retreating. Rainfall falls to 282mm. Highs remain at 31°C (89°F). Lows stay at 25°C (77°F). Longer dry spells appear. Evenings hint at November relief.

High 31°C (89°F)
Low 25°C (77°F)
Rainfall 282mm
Crowds Low
View Details →
October

October is the post-monsoon shoulder month. Conditions improve considerably. Rainfall drops to 231mm, still meaningful yet no longer relentless. Daytime peaks at 31°C (89°F) while nights cool to 24°C (75°F). Skies clear noticeably. The landscape around Chittagong glows greenest now.

High 31°C (89°F)
Low 24°C (75°F)
Rainfall 231mm
Crowds Medium
View Details →
November

November brings back dry-season rhythms. Highs settle at 30°C (86°F). Lows slide to 20°C (68°F). Rainfall shrinks to 48mm, unlikely to disrupt plans. The city feels like its dry-season self again. Evenings invite lingering outdoors.

High 30°C (86°F)
Low 20°C (68°F)
Rainfall 48mm
Crowds High
View Details →
December

December stays reliably comfortable. Highs reach 27°C (80°F). Lows dip to 16°C (60°F). Rainfall is a mere 10mm, effectively a dry month. Cooler evenings arrive, after mid-December. Outdoor dining and city walks feel effortless.

High 27°C (80°F)
Low 16°C (60°F)
Rainfall 10mm
Crowds High
View Details →

Ready to plan your trip to Chittagong?

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Top Things to Do

Curated attractions, tours, and experiences in Chittagong.

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Where to Stay

Best neighbourhoods and hotels for every budget.

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Packing List

What to bring on your trip for Chittagong

When to Visit

Best times to travel for Chittagong

Budget Guide

Trip costs and money tips for Chittagong