Mannar Island | TravelDojo

Mannar Island is an island off the northwest coast of Sri Lanka in the Gulf of Mannar, administered from Mannar District. The island has a town of the same name and is linked to the Sri Lankan mainland by a short causeway and road.

The island’s principal landmarks include Mannar Fort and the town’s harbour facilities, alongside fishing communities that use the shallow coastal waters. The landscape includes coastal plains, sandbars and areas of scrub that support local livelihoods.

Historically the island has been influenced by successive colonial and regional powers and retains built heritage from those periods. Mannar Island lies close to the Palk Strait separating Sri Lanka from India and is a local transport and fishing hub.

Connection to mainland: The island lies in the Gulf of Mannar and is connected to the Sri Lankan mainland by a causeway at Mannar town, facilitating road access.
Local highlights: The island features coastal fishing communities and is noted for historical baobab trees and colonial-era fortifications in the main town area.

What to See #

Mannar Fort: Mannar Fort, located on the island, is a multi-period fortification originally built by European colonial powers and modified by later rulers.

How to Get to Mannar Island #

Mannar is reached by road and rail from northern Sri Lanka. By train, the reopened line from Medawachchiya (junction on the northbound mainline) terminates at Mannar; trains run several times weekly. By road, buses and private taxis connect Mannar to Mannar Bridge and to the A32 highway. The causeway linking the island to Mannar town is a short walk from the bus stand.

Tips for Visiting Mannar Island #

Time a visit at low tide to see the sandbars and the long causeway linking Mannar to the mainland.
Rent a bicycle in Mannar town to explore the baobab avenue and the fort - distances are short and roads are flat.
Bring binoculars for birdwatching: the nearby Vankalai Sanctuary attracts migratory flocks in winter.

Best Time to Visit Mannar Island #

Visit in the dry months to avoid the heavy southwest monsoon and to make the most of the island's open, low-lying landscape.

Dry season

January-April · 25-32°C

Cooler breezes and clear skies - best time for cycling, birding, and walking the causeway.

Early winter (migratory season)

November-December · 24-31°C

Good for birdwatching as migratory species pass through; mornings can be misty and photogenic.

Weather & Climate near Mannar Island #

Climate

Mannar Island's climate is classified as Tropical Savanna - Tropical Savanna climate with consistently warm temperatures year-round. Temperatures range from 23°C to 34°C. Abundant rainfall (1009 mm/year), wettest in November with a pronounced dry season.

Best Time to Visit

FebruaryJanuaryMarch

Temperature & Rainfall

Temperature Range

36°

Warmest Month

20°

Coldest Month

Monthly Conditions

January

January is warm with highs of 29°C and lows of 23°C. Moderate rainfall (61 mm).

86 Excellent

Comfort

26°

Feels Like Warm

26°C

Temperature

23° – 29°

80%

Humidity

Very Humid

Weather

61 mm

Rainfall

3.4 m/s

Wind

Light Breeze

1.9

UV Index

Very High

11.5h daylight

February

February is hot, feeling like 29°C due to high humidity. Moderate rainfall (36 mm) and mostly sunny skies.

91 Ideal

Comfort

29°

Feels Like Hot

27°C

Temperature

23° – 31°

77%

Humidity

Very Humid

Weather

36 mm

Rainfall

2.8 m/s

Wind

Calm

2.3

UV Index

Extreme

11.7h daylight

March

March is hot, feeling like 32°C due to high humidity. Moderate rainfall (41 mm) and mostly sunny skies.

83 Excellent

Comfort

32°

Feels Like Hot

28°C

Temperature

24° – 33°

73%

Humidity

Very Humid

Weather

41 mm

Rainfall

2.4 m/s

Wind

Calm

2.5

UV Index

Extreme

12.0h daylight

April

April is hot, feeling like 35°C due to high humidity. Moderate rainfall (79 mm).

73 Very Good

Comfort

35°

Feels Like Hot

30°C

Temperature

26° – 34°

74%

Humidity

Very Humid

Weather

79 mm

Rainfall

2.5 m/s

Wind

Calm

2.5

UV Index

Extreme

12.2h daylight

May

May is the hottest month, feeling like 38°C due to high humidity. Moderate rainfall (51 mm) and partly cloudy skies.

76 Very Good

Comfort

38°

Feels Like Hot

30°C

Temperature

27° – 33°

79%

Humidity

Very Humid

Weather

51 mm

Rainfall

3.3 m/s

Wind

Light Breeze

2.3

UV Index

Extreme

12.4h daylight

June

June is hot, feeling like 36°C due to high humidity. The driest month with just 6 mm and partly cloudy skies.

78 Very Good

Comfort

36°

Feels Like Hot

30°C

Temperature

27° – 32°

78%

Humidity

Very Humid

Weather

6 mm

Rainfall

3.7 m/s

Wind

Light Breeze

2.3

UV Index

Extreme

12.5h daylight

July

July is hot, feeling like 34°C due to high humidity. Light rainfall and partly cloudy skies.

76 Very Good

Comfort

35°

Feels Like Hot

29°C

Temperature

27° – 32°

76%

Humidity

Very Humid

Weather

15 mm

Rainfall

3.1 m/s

Wind

Light Breeze

2.3

UV Index

Extreme

12.5h daylight

August

August is hot, feeling like 34°C due to high humidity. Light rainfall and partly cloudy skies.

78 Very Good

Comfort

34°

Feels Like Hot

29°C

Temperature

26° – 32°

77%

Humidity

Very Humid

Weather

14 mm

Rainfall

3.2 m/s

Wind

Light Breeze

2.4

UV Index

Extreme

12.3h daylight

September

September is hot, feeling like 34°C due to high humidity. Moderate rainfall (37 mm) and partly cloudy skies.

74 Very Good

Comfort

34°

Feels Like Hot

29°C

Temperature

26° – 32°

78%

Humidity

Very Humid

Weather

37 mm

Rainfall

3.4 m/s

Wind

Light Breeze

2.4

UV Index

Extreme

12.1h daylight

October

October is hot, feeling like 32°C due to high humidity. Significant rainfall (181 mm) and partly cloudy skies.

63 Good

Comfort

32°

Feels Like Hot

28°C

Temperature

25° – 31°

80%

Humidity

Very Humid

Weather

181 mm

Rainfall

2.3 m/s

Wind

Calm

2.1

UV Index

Extreme

11.8h daylight

November

November is hot, feeling like 30°C with oppressive humidity. The wettest month with heavy rain (278 mm) and partly cloudy skies.

69 Good

Comfort

30°

Feels Like Hot

27°C

Temperature

24° – 30°

83%

Humidity

Very Humid

Weather

278 mm

Rainfall

2.4 m/s

Wind

Calm

1.7

UV Index

Very High

11.6h daylight

December

December is warm with muggy conditions (dew point 23°C). Heavy rain (210 mm) and partly cloudy skies.

70 Very Good

Comfort

26°

Feels Like Warm

26°C

Temperature

24° – 29°

83%

Humidity

Very Humid

Weather

210 mm

Rainfall

3.4 m/s

Wind

Light Breeze

1.6

UV Index

Very High

11.5h daylight

Nearby Attractions to Mannar Island

Adam's Bridge Marine National Park

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Adam's Bridge

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Gulf of Mannar Marine National Park

Marine park off Tamil Nadu protecting coral reefs

National Park 39.3 km

Madhu Road National Park

Forest park protecting dry-zone wildlife corridors

National Park 45.4 km

Delft National Park

Marine and island park around Delft Island, Sri Lanka

National Park 50.4 km

Neduntheevu

Small Sri Lankan island (Delft) with colonial ruins

Island 50.7 km

Nainativu

Small Sri Lankan island with ancient Hindu shrine

Island 60.8 km

Ramanathaswamy Temple

Historic Rameswaram temple noted for its long corridors

Religious Site 60.9 km