Weather in Port Blair

Planning a trip or just want to stay updated on conditions outside? Here you will find the most up-to-date information about the weather in the city of Port Blair, including detailed forecasts and charts.

The climate of Port Blair can be described as tropical and humid, with a surprisingly stable temperature regime. Eternal summer reigns here throughout the year: average thermometer readings practically do not change and fluctuate within a comfortable range of 26°C to 29°C. There is no customary change of seasons with cold spells here, so travellers can count on warm weather regardless of the month of the trip.

The main feature of the local weather is a pronounced division into dry and wet seasons. From January to April, rainfall is minimal, creating ideal conditions for beach holidays and excursions. However, starting from May right up to October-November, monsoons arrive in the region: the number of rainy days increases sharply (up to 26–28 days a month), bringing high humidity and heavy downpours that refresh the tropical heat.

The temperature regime in Port Blair is distinguished by amazing stability and mildness throughout the year, which is characteristic of the tropical climate of the Andaman Islands. There are practically no sharp seasonal fluctuations here: the average annual temperature fluctuates within a very narrow range from 26°C to 29°C. According to statistics, the hottest month is April with an average of 28.4°C and maximums reaching 29.5°C. January and February are conventionally considered the coolest months, although even at this time the average temperature holds at a comfortable mark of about 26.7–26.9°C.

The summer period, smoothly flowing into the monsoon season, is characterized by warm and humid weather. In May and June, the air warms up to 28–29°C, creating a feeling of tropical heat, which, however, is softened by sea breezes. Winter in the usual sense is absent here: from December to February, eternal summer reigns in Port Blair. In these months, the weather is most favourable for travel — not too hot, but warm enough for beach holidays and walks, without the risk of freezing.

An interesting feature of the local climate is the minimal difference between day and night temperatures. Judging by meteorological data, the amplitude of fluctuations during the day is extremely small — often the gap between the minimum and maximum is only 1–2 degrees. This means that the nights in Port Blair are just as warm and balmy as the days, allowing tourists to comfortably stay outdoors around the clock without worrying about warm clothes even after sunset.

In Port Blair, there is a clear division of the year into dry and wet seasons, which is typical for the tropical climate of this region. The beginning of the year is the most favourable time for those who prefer clear weather. From January to April, there is very little rainfall. The driest months are February and March, when only 4 to 5 rainy days are recorded, and rainfall levels are minimal (about 1 mm). This is the ideal period for beach holidays and exploring the islands.

The situation changes radically with the arrival of May, when the long rainy season starts. From this moment until October, precipitation becomes an almost daily occurrence. In the summer months and early autumn (July, August, October), the number of rainy days reaches a maximum — about 28 days per month. September also stands out as one of the wettest months with the highest volume of rainfall.

By the end of the year, the intensity of the rains begins to gradually subside. In November, the number of days with precipitation decreases to 20, and in December — to 13, marking the transition to a drier season. Travellers planning a visit to Port Blair from May to November are strongly advised to have reliable rain protection with them, as downpours during this period are a common occurrence.

Given the consistently warm tropical climate of Port Blair, the basis of your wardrobe should be light items made of natural breathable fabrics, such as cotton or linen. The air temperature here stays in the comfortable range of +26...+28°C all year round, so T-shirts, shorts, loose shirts, and summer dresses will be relevant in any season. Do not forget a wide-brimmed hat and high-quality sunglasses to protect yourself from the active sun, especially during the dry period from January to April.

If your trip is planned for the period from May to November, be prepared for a protracted rainy season: the number of days with precipitation in these months is very high (up to 28 days a month). At this time, be sure to put a light raincoat or waterproof windbreaker in your suitcase, as an umbrella can be inconvenient during walks. It is recommended to choose quick-drying clothes, since due to high humidity, dense fabrics take a very long time to dry.

The choice of footwear depends on your holiday plans: comfortable sandals with ankle support or light textile trainers are suitable for city tours and visiting sights. For beaches, be sure to grab flip-flops or aqua shoes. In the rainy season, waterproof footwear made of polymer materials, which is easy to wash and dry, will be the ideal option. Also, do not forget sunscreen with a high protection factor and insect repellents, which will come in handy during evening walks.