What is the weather like in Bangladesh in 2026?

Most summaries frame a cool dry winter from about December to February, a hot pre-monsoon stretch from March to May, a wet southwest monsoon from roughly June to September, and a shorter post-monsoon window in autumn. April is often among the hottest months inland. January is usually the coolest, though “cool” in Dhaka still means mild evenings rather than European frost.

The southwest monsoon brings the bulk of annual rainfall and keeps humidity high. Monsoon depressions over the Bay of Bengal can dump heavy rain and push river flooding across the low Ganges–Brahmaputra–Meghna plain. Pre-monsoon and post-monsoon windows are also the classic periods when coastal cyclone risk rises.

Dhaka feels hot and sticky for long stretches, with monsoon weeks that rewrite traffic and street food plans: Social life and Nightlife. Flash waterlogging in low neighbourhoods matters as much as the temperature on the forecast. Northern and northwestern districts can feel sharper winter drops than the capital. Sylhet and southeastern hills see heavy rain and landslide risk in wet months. Coastal Chattogram and Cox’s Bazar add sea breeze relief some days and storm-surge planning when cyclones form.

Regional temperature gaps are smaller than in India or China because the country is low and flat, so humidity and flood exposure often matter more than a “best climate city” chase.

Air conditioning, mould control, and monsoon footwear matter more than newcomers expect. Test building drainage, backup power, and generator habits before you lock a Gulshan or Banani lease, because heat and outages raise utility and comfort costs: How expensive is Bangladesh and Monthly budget. Remote workers should check fibre resilience during storms. Keep a simple flood and cyclone alert habit if you live near rivers or the coast.

Winter is the easiest outdoor social window for many expats. Pre-monsoon heat and peak monsoon rain shrink walkable evenings even when café calendars stay open.