Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Khulna is from January, February, December. — consistent weather climate
⛈Hot & rainy
| Score | 98 | 96 | 81 | 60 | 42 | 27 | 27 | 26 | 29 | 51 | 93 | 96 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Pleasant | Pleasant | Hot & dry | Hot & rainy | Hot & rainy | Hot & rainy | Hot & rainy | Hot & rainy | Hot & rainy | Hot & rainy | Pleasant | Pleasant |
| Temperature | 13–25°C | 17–28°C | 21–32°C | 25–34°C | 26–34°C | 27–32°C | 26–31°C | 26–31°C | 26–31°C | 24–31°C | 19–29°C | 15–26°C |
| Feels like | 13–25°C | 17–30°C | 24–35°C | 29–39°C | 31–39°C | 32–39°C | 31–37°C | 31–37°C | 31–38°C | 28–36°C | 21–31°C | 16–26°C |
| Precipitation | 11mm 1 days | 21mm 2 days | 61mm 5 days | 107mm 6 days | 176mm 12 days | 273mm 23 days | 364mm 30 days | 344mm 30 days | 279mm 26 days | 198mm 15 days | 46mm 3 days | 31mm 2 days |
| Sunshine | 9.6h ☀︎ 88% | 10.0h ☀︎ 87% | 10.4h ☀︎ 87% | 10.6h ☀︎ 84% | 10.2h ☀︎ 77% | 5.8h ☀︎ 43% | 4.7h ☀︎ 35% | 4.7h ☀︎ 36% | 5.6h ☀︎ 46% | 9.1h ☀︎ 78% | 9.7h ☀︎ 87% | 9.1h ☀︎ 85% |
| Wind | N · 11 km/h | NW · 11 km/h | SW · 13 km/h | S · 17 km/h | S · 17 km/h | S · 18 km/h | S · 17 km/h | S · 16 km/h | S · 14 km/h | E · 11 km/h | N · 10 km/h | N · 10 km/h |
| Humidity (%) | 75% | 70% | 70% | 75% | 79% | 84% | 86% | 87% | 87% | 84% | 77% | 76% |
| Day length | 10.9h | 11.4h | 12.0h | 12.7h | 13.2h | 13.5h | 13.4h | 12.9h | 12.3h | 11.6h | 11.1h | 10.8h |
Khulna exists primarily as an open door to the wilderness and history at its doorstep, and the winter months from November through February provide the only window when traveling here feels like an adventure rather than an endurance test.
Khulna is rarely anyone's final stop. It is a city defined by water and transit: industrial barges idling along the muddy curves where the Rupsha River meets the Bhairab River, timber yards stacked high, and wooden passenger ferries cutting across swift tidal currents. Travelers come here because the roads south run out, yielding to the untamed waterways of the Sundarbans and the ancient brick domes of the Mosque City of Bagerhat. But the delta is merciless with its seasons. Timing your arrival determines whether you spend your days gliding across glassy forest channels in crisp sunshine or trapped inside an airless river cabin while the monsoon turns the entire southwestern coast into a sodden blur.
Late autumn through winter is when the delta settles into its gentlest rhythm. Mornings begin with cool river mist rising off the Bhairab River, muffling the thrum of diesel engines until the sun burns through to leave clear, dry blue skies. The oppressive humidity that blankets southwestern Bangladesh for most of the year completely evaporates. Afternoon temperatures hover in the mid-twenties, cool enough that walking through rural bazaars or spending ten hours on an open wooden deck tracking wildlife through the Sundarbans feels invigorating rather than exhausting.
December draws the largest crowds of the year, mostly domestic holidaymakers who pack the tour vessels heading south toward the Port of Mongla and the Bay of Bengal. If you arrive just after New Year in January, you get the absolute pinnacle of the weather—cool, crisp days with barely a hint of rain—with roughly half the foot traffic. Even February preserves this mild, easygoing temperament, though afternoons slowly begin to warm up.
This is the only period when day trips out to the Mosque City of Bagerhat are truly comfortable. The complex of fifteenth-century brick structures and quiet sacred ponds offers little shade, and exploring its terracotta facades in January air lets you linger over the architecture without searching desperately for a patch of tree cover.
By March, the winter tranquility vanishes. The air stalls, the temperature climbs sharply into the thirties, and the humidity creeps back off the Bay of Bengal. What makes this transition challenging is the sudden escalation of heat. By April and May, the midday sun reflects violently off the silt-laden waters of the Rupsha River, and the heat index regularly registers closer to forty degrees.
Navigating Khulna's busy roads and riverfront docks during these pre-monsoon months requires shifting your schedule to the edges of the day. The city wakes early, bustling with dockworkers and street vendors at dawn, then falls into a dazed stupor between noon and late afternoon. Traveling south on a river boat at this time means sweltering inside stagnant cabins unless you have reliable breeze on deck.
May brings another complication: the atmosphere turns unstable. Violent pre-monsoon squalls known locally as Kalbaishakhi can whip up out of nowhere, churning the wider estuaries into dangerous swells and abruptly halting small boat traffic. If you find yourself in the city during late spring, limit your excursions to the early hours and leave plenty of flexibility in your transit plans.
The monsoon arrives in June and stays firmly through September, reshaping the landscape entirely. Khulna and the lower delta do not merely experience rain; they are inundated by it. July and August bring relentless, heavy downpours that can last for days, turning dirt tracks into impassable quagmires and swelling the Bhairab River up to the edges of its stone embankments.
For general sightseeing, this is without question the worst time of year to visit. Jungle expeditions into the Sundarbans become fraught: walking trails wash out, high tides flood the mudbanks where animals normally emerge to feed, and visibility across the vast mangrove estuaries drops to a gray curtain of water. In town, local drainage struggles under the deluge, leading to waterlogged streets and endless traffic snarls.
There is, however, an austere beauty for those who appreciate raw tropical drama. The mangrove forests turn an incandescent, hyper-saturated green, and river life takes on a slow, hypnotic cadence. If you travel by boat during these months, you will share the rivers with few other foreigners, but you must be prepared to spend whole afternoons marooned under corrugated tin roofs waiting for the downpour to slacken.
October is an awkward shoulder month. The torrential summer rains taper off dramatically, but the heat lingers and the ground remains saturated. The moisture rising from flooded fields and waterways creates thick, sticky afternoons that make physical exertion taxing.
Yet the transition is unmistakable. As the month progresses, the sky clears more reliably, revealing long stretches of sunshine that hint at the coming winter. Commercial activity around the Port of Khulna picks up, and operators begin scrubbing down vessels in anticipation of the expedition season ahead. If you must travel before November, late October is workable, but you will still pay for the experience in sweat.