Cox's Bazar sits on Bangladesh's southeastern coast, home to what's recognized as the longest natural sandy beach in the world, stretching roughly 120 kilometers along the Bay of Bengal. Beyond the headline beach, the area is layered with coral-studded shores at Inani, the tropical rainforest of Himchari National Park, and island side trips to Maheshkhali and Saint Martin's, Bangladesh's only coral island. Fresh seafood is the backbone of the local food scene, with beachside stalls grilling the day's catch alongside samosas and jalebis, and the Burmese Market offers a window into the Rakhine-influenced culture that sets Cox's Bazar apart from the rest of Bangladesh.
Your best window for Cox's Bazar runs from late November through late February, when the weather shifts from the sticky monsoon months into a comfortably warm dry season. Highs settle into the low 80s°F, humidity drops to its most tolerable levels, and rain is almost nonexistent, giving you clear skies for beach days, boat trips to Saint Martin's Island, and drives along the 80-kilometer Marine Drive. This is also the quietest period for tourism volume, which means lower accommodation rates and less crowded stretches of sand at Inani and Laboni Beach. If you can't make that window, October and early November serve as a solid shoulder option: rain is tapering off, prices remain low, and the coast starts drying out, though air quality can be a concern for sensitive travelers year-round.
Spring in Cox's Bazar, Bangladesh
March kicks off the spring season with relatively dry conditions, only about a 3% chance of significant rain, and the beaches are at their most photogenic before the haze and moisture of the coming months settle in. This is still a solid time to cruise the 80-kilometer Marine Drive, stop at Inani Beach to walk among the coral stones, or take a half-day motorboat trip to Maheshkhali Island to visit the hilltop Adinath Temple. Highs climb to 91.7°F (33.2°C), though, so mornings and late afternoons are the most comfortable windows for sightseeing. Pack a hat and sunscreen, because the tropical sun is fierce.
By April the heat intensifies and humidity starts creeping up past 70%, making extended time outdoors more draining. Lows rarely drop below 76°F (24.4°C) overnight, so even evenings along Kolatoli or Laboni Beach feel warm. Rain chances jump from 3% in March to 11% in April, signaling the approaching monsoon. This is also one of the busier periods for domestic tourism, and you'll notice more crowds along the main beach strip. Air quality hovers in the Unhealthy for Sensitive Groups range through much of spring, so travelers with respiratory concerns should plan accordingly.
May marks the real transition, with rain probability surging to 31% and the coast starting to feel the first edges of monsoon energy. Rough seas begin to limit boat excursions to Saint Martin's Island, and beachside activities like parasailing and kayaking become weather-dependent. If you're visiting in spring, target March for the driest and most manageable conditions, and keep a light rain jacket handy by late April.
Summer in Cox's Bazar, Bangladesh
Summer in Cox's Bazar means monsoon, and the Bay of Bengal delivers it with full force. June through August sees the heaviest sustained rainfall of the year, with July topping out at a 76% chance of significant rain on any given day. The coastline transforms: waves crash harder, rivers swell, and the waterfalls at Himchari National Park reach their most dramatic flow. If you can tolerate the wet conditions, this is actually when Himchari's cascades are at their most impressive, tumbling down through the tropical forest canopy.
The heat remains substantial, with seasonal highs averaging 88.3°F (31.3°C) and lows holding steady at 78.4°F (25.8°C), paired with humidity regularly exceeding 80%. The combination makes it feel hotter than the thermometer reads. Outdoor exploration is best limited to early mornings before the afternoon downpours roll through. Boat trips to Saint Martin's Island are generally suspended or unreliable during the monsoon months, and rough seas make water sports inadvisable. This is the busiest tourism period by volume index, driven largely by domestic visitors during school breaks, which can make the main beach areas crowded despite the weather.
On the practical side, July's air quality is actually the best of the entire year, dropping into the Moderate range, so at least the air you're breathing between showers is cleaner. Bring waterproof bags for your electronics, quick-dry clothing, and sturdy sandals that can handle wet conditions. Roads along Marine Drive can flood during heavy downpours, so keep travel plans flexible and check conditions before heading south toward Teknaf.
Fall in Cox's Bazar, Bangladesh
September still carries the tail end of the monsoon, with a 46% rain chance that makes early fall feel more like a continuation of summer. But conditions improve noticeably as the weeks pass: by October, rain probability drops to 25%, and by November it falls to just 4%. This is the transition window, and patience pays off. The Rakhine community's cultural presence becomes more visible as the coast quiets down; if you're interested in local traditions, the Rakhine celebrate Baishabi, their biggest cultural festival, though that falls in the spring months rather than fall.
Temperatures remain warm, with seasonal highs of 89.1°F (31.7°C) and lows settling to 75°F (23.9°C), notably more comfortable than the monsoon months. Humidity starts easing from September's 82.6% toward November's 69.4%, and afternoons begin to feel genuinely pleasant rather than oppressive. By late October, the seas calm enough that boat trips to Saint Martin's Island and Maheshkhali resume, and parasailing and kayaking return to the beaches at Kolatoli and Laboni Point.
This is one of the quieter tourism periods, and accommodation rates tend to drop accordingly. Air quality remains in the Unhealthy for Sensitive Groups range for October and November, so those with sensitivities should still take precautions. Bring a light rain layer for September and early October, but by November you can pack lighter, leaning on shorts, breathable fabrics, and a good pair of sunglasses for those long beach walks as the sun sets around 5:09 PM.
Winter in Cox's Bazar, Bangladesh
Winter is when Cox's Bazar feels most inviting. The monsoon is a distant memory, skies clear out, and the Bay of Bengal turns calm and swimmable. Highs ease to 83°F (28.3°C) with lows dipping to a genuinely refreshing 62.8°F (17.1°C), the coolest overnight temperatures you'll find all year. Rain is almost nonexistent: January sees just a 1% chance and December only 2%, making it the most reliably dry stretch for planning outdoor days from dawn to dusk.
This is the season to do everything Cox's Bazar is known for. Drive the full length of Marine Drive with the windows down, stopping at Inani Beach to photograph the coral-studded shoreline and catch one of those famous Bay of Bengal sunsets. Take the boat to Saint Martin's Island for a night or two on Bangladesh's only coral island, where the water runs clear enough to spot marine life from shore. Back on the mainland, the Burmese Market is worth a morning browse for handmade textiles, dried fish, and seashell crafts. Fresh seafood is at its best when the fishing boats can operate in calm seas: look for grilled prawns and local knife fish at the beachside stalls along Laboni Point.
Despite being the quietest period by tourism volume, December does see a bump from domestic holiday travelers, so booking accommodations in advance for late December is wise. Air quality sits in the Unhealthy for Sensitive Groups to Unhealthy range during winter months, particularly February, which records the worst air quality of the year. Travelers with respiratory conditions should consider a face mask for extended outdoor time. The shorter days, with sunset arriving around 5:12 PM in December, still leave you with a solid 10 to 11 hours of daylight for sightseeing, and the cooler evenings make post-dinner beach walks genuinely comfortable for the first time all year.
At a Glance
Monthly weather, visitor crowds, air quality, holidays, and daylight hours to help you plan your trip.
Travel Tips & Safety for Cox's Bazar, Bangladesh
Cox's Bazar is reachable by air through Cox's Bazar Airport, with regular flights from Dhaka on carriers like Biman Bangladesh Airlines, US-Bangla Airlines, and Novoair. Overland options include an overnight bus from Dhaka (10 to 12 hours) or a train on the Chittagong to Cox's Bazar line. Within the city, CNG auto-rickshaws are the standard way to get around, and hiring a jeep for the day is the best approach for reaching Inani Beach and Himchari, both within 30 minutes of town.
Stick to bottled water, and confirm food prices at beachside restaurants before ordering, as some stalls lack posted menus. The tropical sun is intense year-round, so carry reef-safe sunscreen, a wide-brimmed hat, and stay hydrated. Cyclone season overlaps with the monsoon months from roughly May through November, so monitor weather updates if visiting during that window and follow any local evacuation guidance.
Cox's Bazar is generally welcoming and safe for visitors, with a dedicated Tourist Police unit present along the beach areas. Keep your valuables secure and be aware of strong currents when swimming, particularly during and just after the monsoon season when the sea can be unpredictable. Dress modestly when visiting temples and religious sites on Maheshkhali Island and in the Buddhist village of Ramu.