Sonadia Island Island

Barrier island off Bangladesh's coast, important for wildlife

A barrier island off Bangladesh's southeast coast known for sandy beaches, migratory birds and coastal fishing; reached by boat from Cox's Bazar and surrounding ports.

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Sonadia Island at a Glance#

About Sonadia Island#

Sonadia Island is a small island off the southeastern coast of Bangladesh in Chittagong Division. It lies in the Bay of Bengal and is noted for its coastal ecosystems.

The island’s sandy beaches and dunes provide habitat for nesting marine turtles and attract naturalists and local fishers. Shoreline areas and adjacent shallow waters are used for small-scale fishing and boat landings rather than mass tourism.

Sonadia is a naturally formed island used historically by local communities for fishing and seasonal activities. In recent decades it has been the subject of proposals and studies for port or harbour development, drawing attention from planners and environmental groups.

The island sits off Bangladesh’s southeastern coastline in Chittagong Division, accessible by boat from nearby coastal towns and fishing villages.

  • Turtle nesting: Important nesting site for marine turtles and other coastal wildlife, with seasonal nesting activity on sandy beaches.
  • Proposed port site: Has been proposed as a location for port development, which has attracted planning and environmental interest from government and conservation groups.

How to Get to Sonadia Island#

Sonadia is typically reached by boat from the mainland port of Cox’s Bazar or nearby Ghumdhum, depending on tides and charter arrangements. Because schedules are irregular, arrange transport with local boatmen in advance and confirm weather conditions.

Tips for Visiting Sonadia Island#

  • Sonadia is ecologically sensitive - be especially careful during turtle nesting season and avoid beach disturbance at night.
  • Local projects have proposed deep-sea port development in the past; check current status before planning industrial visits.
  • Hire local guides for safe landing and to support community-based services.

Best Time to Visit Sonadia Island#

November to April for best boat access and calmer weather.

Dry season
November-April · 20-30°C
Calmer seas and more comfortable temperatures for boat travel and wildlife observation.
Monsoon season
May-October · 25-32°C
Heavy rains and rough seas; many services curtailed and access more difficult.

Weather & Climate near Sonadia Island#

Climate

Tropical climate with hot summers (peaking in May) and warm winters (coldest in January). Temperatures range from 15°C to 32°C. Heavy rainfall (3540 mm/year), wettest in July with a pronounced dry season.

Air Quality: AQI 134 Unhealthy (Sg)
Best Time to Visit
JanuaryFebruaryDecember
Temperature & Rainfall
Temperature Range
34°
Warmest Month
15°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Ideal 15° - 26° 21° 4 mm mostly sunny 70% 1.5 m/s 1.3 high 10.9h
February Ideal 17° - 28° 23° 17 mm mostly sunny 69% 1.6 m/s 1.7 very high 11.3h
March Excellent 21° - 31° 26° 27 mm partly cloudy 73% 2.2 m/s 1.9 very high 11.9h
April Good 24° - 32° 32° 104 mm partly cloudy 78% 2.3 m/s 2.1 extreme 12.5h
May Acceptable 25° - 32° 34° 281 mm overcast 82% 2.8 m/s 2.0 extreme 13.0h
June Good 26° - 30° 33° 779 mm overcast 87% 2.8 m/s 1.7 very high 13.3h
July Good 25° - 30° 33° 950 mm overcast 89% 2.8 m/s 1.8 very high 13.2h
August Good 25° - 30° 33° 696 mm overcast 89% 2.3 m/s 2.0 very high 12.7h
September Acceptable 25° - 31° 33° 343 mm overcast 86% 1.8 m/s 1.8 very high 12.2h
October Good 25° - 31° 32° 219 mm partly cloudy 80% 1.5 m/s 1.6 very high 11.5h
November Excellent 21° - 29° 25° 102 mm mostly sunny 75% 1.3 m/s 1.4 high 11.0h
December Ideal 17° - 27° 22° 18 mm mostly sunny 73% 1.4 m/s 1.2 high 10.7h