The Calendar Says Autumn, the Thermometer Disagrees: By late October, many people expect the first cool mornings. Instead, much of the country is still sticky and warm. The reason is simple: October is a transition month, not the start of winter.
What the Numbers Show
Climate averages put Dhaka’s October highs around 32°C, with nights near 24°C. Humidity sits at roughly 74 to 76 per cent, which makes the heat feel heavier. AccuWeather’s forecast for the last week of October shows Dhaka highs between about 87°F and 95°F, with periods of cloud and showers.
The Monsoon Leaves Slowly
The rainy season officially runs from June to October, and the rain typically retreats around mid-October. The ground and air stay damp for weeks after, so the moisture keeps temperatures feeling hotter. Dry northern air, which brings the real chill, has not yet taken over.
The Sun Is Still High
Bangladesh lies near the Tropic of Cancer, so the sun stays fairly high in the sky well into autumn. Days are only slowly getting shorter. That means plenty of daytime heating even when the rain has stopped.
Bay of Bengal Weather Systems
Late October and November are a busy period for low-pressure systems and cyclones over the Bay of Bengal. These systems pull in humid air and can bring clouds and showers. That can keep nights warm and delay the arrival of cooler, drier winds.
The City Effect in Dhaka
Concrete, traffic, air conditioner exhaust and a lack of green space trap heat in the capital. Urban areas often stay warmer than surrounding countryside after sunset. This is why many Dhaka residents feel the heat more strongly than people in rural districts.
When Does Real Winter Arrive?
Some references define the cool, dry season as lasting from October to March, but the sharp cold comes much later. During the 2025-26 winter, mild to moderate cold waves hit northern districts mainly in January, and Tetulia in Panchagarh recorded about 6.7°C at its lowest. BMD had forecast a slightly colder-than-normal winter that year, with up to 10 cold waves between November and January. Expect the first noticeable drop in November, with December and January the coldest months.
Staying Comfortable Through the Heat
- Drink plenty of water and avoid long exposure in midday sun.
- Wear light cotton clothing.
- Keep an umbrella handy for sudden showers.
- Watch for dengue risk, since stagnant water and warm, humid weather can keep mosquitoes active.
- Take extra care with children, older adults and outdoor workers.
Discover Latest Weather Forecast with Bangla Pulse
What is the weather forecast for Bangladesh in October, and when will the monsoon withdraw?
Bangladesh may experience changing rainfall patterns during October as the monsoon season draws to a close. Read more about rainfall trends and the expected monsoon withdrawal in this October weather forecast for Bangladesh.
What vegetables can be grown during the Rabi season in Bangladesh?
The Rabi season is suitable for growing a variety of cool-season crops and vegetables, depending on local weather and soil conditions. Discover useful planting ideas and gardening advice in this guide to Rabi-season gardening in Bangladesh.
How should parents adjust childcare routines during winter?
Parents and caregivers can adapt winter routines by keeping children comfortably warm, maintaining good hygiene and paying attention to hydration and seasonal illnesses. Find more practical advice in this guide to childcare during winter.
How can you prevent dry and dull hair during winter?
Dry winter air can contribute to hair dryness, frizz and a lack of shine. Using a suitable conditioner, limiting excessive heat styling and protecting hair from harsh weather may help maintain its moisture. Explore more tips in this winter hair-care guide.
Is a new Bay of Bengal weather disturbance a potential threat to Bangladesh?
Weather disturbances over the Bay of Bengal can bring heavy rainfall, strong winds and rough sea conditions, depending on their development and movement. Read the latest details about the weather systems being tracked by the Bangladesh Meteorological Department and India’s Meteorological Department in this report on the new Bay disturbance.
