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Climate - Andaman (India)


Average weather, temperature, rainfall, sunshine hours

Flag - India

Andaman Islands, map


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Climate chart - Port Blair

On the Andaman Islands, located between the Bay of Bengal and the Andaman Sea, at about 10/13 degrees north latitude, the climate is tropical, hot all year round, with a dry season from January to April and a rainy season from May to November due to the Indian monsoon.
The temperatures are stable throughout the year, however, before the rainy season, in March and April, the hottest time of the year occurs. Here are the average temperatures in Port Blair, the capital, located on the island of South Andaman.
Port Blair - Average temperatures (1991-2020)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January233026.6748679.8
February233126.8738780.3
March243227.6748981.7
April253228.6779083.5
May253128.1778882.6
June253027.2768680.9
July243027768580.6
August242926.9768580.4
September242926.6758579.9
October243027.1758680.8
November253027.5768781.5
December243027758680.6
Year24.130.427.275.486.781

Precipitation is abundant, and amounts to almost 3,000 millimeters (120 inches) per year. The rains begin in May, and are very frequent. They decrease during the month of November, and become quite rare in December. Here is the average precipitation.
Port Blair - Average precipitation
MonthMillimetersInchesDays
January351.43
February200.82
March100.41
April702.84
May34513.619
June45517.923
July40015.722
August42516.723
September40515.920
October29511.618
November2551015
December1556.16
Year2870113156

From December to April, the sun regularly shines, while from June to September, the sky is often cloudy. Here are the average sunshine hours per day.
Port Blair - Sunshine hours
MonthAverageTotal
January8.5265
February9.5265
March8.5265
April8240
May5155
June385
July3.5110
August3.5100
September4125
October5.5165
November6175
December7.5240
Year62195

The islands lie in the path of tropical cyclones; they are formed more easily between April and December, with two peaks from late April to late May and from October to early December. However, given the warm sea, in theory, they can form all year round.

Havelock Island

The sea is warm enough to swim in all year round, as can be seen in the following table.
Andaman - Sea temperature
MonthCelsius (°C)Fahrenheit (°F)
January2882
February2882
March2984
April3086
May3086
June2984
July2984
August2882
September2882
October2984
November2984
December2882
Year28.883.8

Best Time


The best time for a beach holiday in the Andamans is from January to April, since it is the driest period of the year. Sometimes, the rains last until mid-January, while in March and April, it can be very hot; moreover, in April, the first cyclones can affect the islands. Therefore, the best period overall is from mid-January to the end of February.

What to pack


All year round, bring light clothes of natural fibers, a sun hat, a scarf for the breeze, a light sweatshirt for the evening. In the rainy season, you can add a light raincoat or umbrella.
When going to the reef, you can bring snorkeling equipment, including water shoes or rubber-soled shoes.


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