Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Chittagong is from January, February, December. — consistent weather climate
⛈Hot & rainy
| Score | 98 | 98 | 89 | 71 | 45 | 34 | 33 | 33 | 31 | 49 | 92 | 97 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Pleasant | Pleasant | Hot & dry | Hot & dry | Hot & rainy | Hot & rainy | Hot & rainy | Hot & rainy | Hot & rainy | Hot & rainy | Pleasant | Pleasant |
| Temperature | 14–25°C | 16–28°C | 21–31°C | 24–32°C | 25–32°C | 26–30°C | 25–30°C | 25–30°C | 25–30°C | 24–30°C | 20–29°C | 16–26°C |
| Feels like | 14–26°C | 17–29°C | 23–34°C | 29–37°C | 30–38°C | 30–36°C | 30–35°C | 30–36°C | 30–37°C | 29–36°C | 22–33°C | 17–28°C |
| Precipitation | 11mm 1 days | 6mm 1 days | 38mm 3 days | 74mm 8 days | 188mm 16 days | 475mm 30 days | 544mm 30 days | 451mm 30 days | 342mm 28 days | 207mm 17 days | 45mm 3 days | 20mm 2 days |
| Sunshine | 9.7h ☀︎ 89% | 10.2h ☀︎ 89% | 10.5h ☀︎ 87% | 11.0h ☀︎ 87% | 10.6h ☀︎ 81% | 5.1h ☀︎ 38% | 4.2h ☀︎ 31% | 4.3h ☀︎ 33% | 5.5h ☀︎ 45% | 9.2h ☀︎ 79% | 10.1h ☀︎ 91% | 9.5h ☀︎ 88% |
| Wind | N · 12 km/h | NW · 13 km/h | W · 15 km/h | SW · 18 km/h | S · 18 km/h | S · 20 km/h | S · 20 km/h | S · 18 km/h | S · 14 km/h | NE · 12 km/h | N · 10 km/h | N · 11 km/h |
| Humidity (%) | 75% | 71% | 71% | 78% | 81% | 87% | 89% | 89% | 88% | 86% | 80% | 79% |
| Day length | 10.9h | 11.4h | 12.0h | 12.7h | 13.2h | 13.5h | 13.3h | 12.9h | 12.3h | 11.6h | 11.1h | 10.8h |
Chittagong exists as two entirely different cities: a crisp, breezy maritime sanctuary from November through February, and a waterlogged pressure cooker for the rest of the year where the Bay of Bengal's rains bring the coastal metropolis to a standstill.
Most travelers perceive Chittagong merely as a functional springboard—a sprawling industrial powerhouse wedged between the green folds of the Chittagong Hill Tracts and the restless currents of the Karnaphuli River. As Bangladesh's commercial engine and historic seaport, it hums with shipping containers, garment mills, and maritime trade. Yet when the air clears and the winds swing from the north, this city reveals an unexpected, rugged charm. Container ships sit anchored like steel islands in the Bay of Bengal, ridges of ancient hills offer panoramic views over verdant river valleys, and the evening breeze off the water washes away the diesel and dust. But your experience depends entirely on the calendar. Arrive during the wrong month, and you will spend your days wading through flooded thoroughfares under an oppressive, suffocating blanket of moisture. Arrive during the golden winter corridor, and Chittagong feels like one of the most dynamic, atmospheric port towns in South Asia.
Winter in Chittagong is nothing short of a revelation. Beginning in November, the oppressive humidity abruptly collapses, replaced by dry air drifting south from the continental interior. Daytime temperatures hover in the comfortable mid-twenties, and the nighttime chill brings out wool shawls and steaming earthenware cups of sweet tea on every street corner. The haze lifts to reveal sharp outlines of distant ridgelines, and the sky turns an immaculate, cloudless pale blue.
This is the season when the city lives outdoors. December brings the heaviest influx of regional travelers and school holidays, turning waterfront promenades into carnival corridors of peanut vendors, kites, and sea-watchers. But the genuine secret of the calendar is January. While the weather matches the flawless clarity and mild warmth of December, visitor numbers drop sharply. You can climb to the summit of Batali Hill in the morning without breaking into a sweat, looking out over the red rooftops, minarets, and the bustling harbor without fighting for elbow room.
By February, the afternoons begin to warm up, yet the evenings remain blissfully cool. Out at Patenga Beach, the seawall catches the offshore breeze as the sun dips into the Bay of Bengal, silhouetting cargo ships waiting in the roads. Walking along the shoreline or exploring the forested walking paths around Foy's Lake feels easy and energizing—a stark contrast to the grueling physical toll of walking these same streets just a few weeks later. If you want to experience the maritime grandeur of Chittagong without the misery of extreme heat, this four-month window is the only time to go.
In March, the pleasant northern breezes shut down. The air reverses direction, dragging warm, moist air directly off the ocean. What follows is a brutal two-month ramp-up where temperatures climb past thirty degrees, but the real adversary is the humidity. By April and May, midday walking becomes an exercise in endurance. The apparent temperature easily reaches thirty-eight degrees, turning short strolls into sodden ordeals. The air feels heavy, thick, and stationary.
Yet paradoxically, visitor numbers spike in late spring. Domestic travelers converge on the city for holidays, filling the waterfront and parks even as the climate deteriorates into an atmospheric pressure cooker. If you find yourself in Chittagong during these months, pace yourself to the rhythms of the locals. The city retreats behind whirring ceiling fans between noon and four in the afternoon. Life restarts only after dusk, when the Karnaphuli River exhales a damp, salty draft across the docks.
May also brings the Kalbaishakhi—violent, sudden pre-monsoon thunderstorms that sweep down from the hills in the late afternoon. The sky turns the color of bruised slate in minutes, the wind roars with gale-force urgency, and blinding downpours tear through the city streets. These deluges briefly clear the suffocating air, leaving the pavement steaming, but they are only a warning shot of what is about to engulf the coast.
By June, the southwest monsoon officially makes landfall, and Chittagong becomes an aquatic landscape. For the next four months, the city receives astronomical volumes of rain—frequently topping five hundred millimeters in July alone. This is not a picturesque, poetic shower that passes in an hour; it is a relentless, sky-splitting torrent that can fall uninterrupted for days on end, driven by howling coastal winds.
Visiting Chittagong during the summer monsoon is deeply challenging. Low-lying avenues around the commercial districts flood routinely, turning roads into sluggish canals choked with marooned auto-rickshaws. Landslides become a serious hazard along the hilly fringes of the city, and trail walks around Foy's Lake turn into slick, impassable red clay chutes. Sunlight is a rare luxury; weeks go by where the sky remains an unbroken, dreary ceiling of low grey clouds, while the saturated air traps heat against the ground.
Unless your purpose is to witness the sheer, terrifying majesty of maritime weather or you are traveling strictly on industrial business, avoid this stretch. The ship-breaking beaches further north become inaccessible mudflats, ferry traffic along the Karnaphuli River faces frequent suspensions due to rough seas, and the sheer volume of water makes everyday logistics exhausting.
October marks the awkward, muggy transition between the drowned summer and the crisp winter. The torrential monsoon fronts begin to retreat, and the hours of sunshine rebound sharply, but the moisture stored in the sodden soil has nowhere to go. As the sun beats down on the saturated earth, the entire city feels like an enormous sauna.
While rainfall drops by more than half compared to the deluge of September, sudden tropical depressions in the Bay of Bengal can still dump heavy sheets of rain without warning. The coastal waters remain choppy and unpredictable. Walking around the base of Batali Hill, you will find lush, overgrown vegetation and vibrant green landscapes, but the air remains sticky and heavy enough that any uphill climb leaves you completely drenched.
It is a workable month for those who dislike crowds and do not mind damp heat, as the city operates at a steady, unhurried pace before the winter rush. However, patience is required. If you have the flexibility to wait even three or four weeks into November, the transformation in comfort and clarity is nothing short of miraculous.