Port Blair
India
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Port Blair, India

The best months for a swim in Port Blair, India, are January through March, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.

January, like December, in Port Blair, India, is another warm winter month, with average temperature fluctuating between 21.3°C (70.3°F) and 29.2°C (84.6°F). The ideal sea water temperature of 27.8°C (82°F) and only 2.8 rainfall days, with 46.4mm (1.8") of accumulated rainfall, make January the best time for swimming and other water activities. Weather in January »

The last month of the winter, February, is a hot month in Port Blair, India, with average temperature varying between 30.1°C (86.2°F) and 21°C (69.8°F). The ideal sea water temperature of 28.3°C (82.9°F) and only 1.5 rainfall days, with 26.5mm (1") of accumulated rainfall, make February the best time for swimming and other water activities. Weather in February »

March, the first month of the pre-monsoon summer, in Port Blair, is still a tropical month, with average temperature ranging between min 21.8°C (71.2°F) and max 31.1°C (88°F). The ideal sea water temperature of 28.9°C (84°F) and only 1.4 rainfall days, with 29.3mm (1.2") of accumulated rainfall, make March the best time for swimming and other water activities. Weather in March »

April, like March, is another hot pre-monsoon summer month in Port Blair, India, with average temperature fluctuating between 23.4°C (74.1°F) and 32.2°C (90°F). The warmest month is April, with an average high-temperature of 32.2°C (90°F) and an average low-temperature of 23.4°C (74.1°F). In April, the average heat index is calculated to a scorching 41.8°C (107.2°F). Weather in April »

May, the last month of the pre-monsoon summer, in Port Blair, is another hot month, with average temperature varying between 31°C (87.8°F) and 23.3°C (73.9°F). In Port Blair, the average high-temperature in May is almost the same as in April - a still hot 31°C (87.8°F). Weather in May »

The first month of the rainy (monsoon) season, June, is also a moderately hot month in Port Blair, India, with temperature in the range of an average high of 29.5°C (85.1°F) and an average low of 23.1°C (73.6°F). In June, the average high-temperature is practically the same as in May - a warm 29.5°C (85.1°F). Weather in June »

July, like June, in Port Blair, India, is another warm rainy (monsoon) season month, with average temperature fluctuating between 29.2°C (84.6°F) and 23°C (73.4°F). In Port Blair, India, the average high-temperature is relatively the same as in June - a still warm 29.2°C (84.6°F). Weather in July »

August, the same as July, is a moderately hot rainy (monsoon) season month in Port Blair, India, with average temperature ranging between max 29.1°C (84.4°F) and min 22.9°C (73.2°F). August and December, with an average high-temperature of 29.1°C (84.4°F), are the coldest months. The average heat index in August is appraised at a sweltering 36.2°C (97.2°F). Weather in August »

The last month of the rainy (monsoon) season, September, is another warm month in Port Blair, India, with average temperature fluctuating between 22.4°C (72.3°F) and 29.2°C (84.6°F). In Port Blair, the average high-temperature in September is essentially the same as in August - a still moderately hot 29.2°C (84.6°F). Weather in September »

The first month of the post monsoon autumn, October, is also a moderately hot month in Port Blair, India, with average temperature ranging between min 22.2°C (72°F) and max 29.6°C (85.3°F). In October, the average high-temperature is relatively the same as in September - a still warm 29.6°C (85.3°F). Weather in October »

The last month of the post monsoon autumn, November, is also a moderately hot month in Port Blair, India, with temperature in the range of an average high of 29.4°C (84.9°F) and an average low of 22.3°C (72.1°F). In November, the average high-temperature is almost the same as in October - a still warm 29.4°C (84.9°F). Weather in November »

The first month of the winter, December, is still a warm month in Port Blair, India, with temperature in the range of an average low of 22.3°C (72.1°F) and an average high of 29.1°C (84.4°F). The coldest months are August and December, with an average high-temperature of 29.1°C (84.4°F). The average heat index in December is calculated to a hot 33.9°C (93°F). Weather in December »

How much does it rain in Port Blair?

In Port Blair, during the entire year, the rain falls for 156.3 days and collects up to 3034.8mm (119.5") of precipitation.

What month is the sea coldest in Port Blair?

January is the month with the coldest seawater in Port Blair, with an average sea temperature of 27.8°C (82°F).

What is the month with the shortest days in Port Blair?

January and December, with an average of 11.5h of daylight, are months with the shortest days in Port Blair, India.

What are the months with the lowest UV index in Port Blair?

Months with the lowest UV index in Port Blair are January, November and December, with an average maximum UV index of 10.

What is the driest month in Port Blair?

February is the month with the least rainfall. Rain falls for 1.5 days and accumulates 26.5mm (1") of precipitation.

What month has the most sunshine in Port Blair?

February has the most sunshine of the year, with an average of 9.4h of sunshine.

What are the months with the highest UV index in Port Blair?

February through October, with an average maximum UV index of 12, are months with the highest UV index in Port Blair.

What is the least humid month in Port Blair?

March is the least humid month in Port Blair, India, with an average relative humidity of 71%.

What is the warmest month in Port Blair?

The warmest month in Port Blair, India, is April, with an average high-temperature of 32.2°C (90°F) and an average low-temperature of 23.4°C (74.1°F).

What are the months with the warmest sea water in Port Blair?

April and May, with an average sea temperature of 30.3°C (86.5°F), are months with the warmest seawater.

What is the wettest month in Port Blair?

June is the month with the most rainfall in Port Blair. Rain falls for 23 days and accumulates 501.1mm (19.7") of precipitation.

When are the longest days in Port Blair?

June has the longest days of the year in Port Blair, with an average of 12.8h of daylight.

What is the month with the least sunshine in Port Blair?

The month with the least sunshine in Port Blair, India, is June, with an average of 2.9h of sunshine.

What is the coldest month in Port Blair?

August and December, with an average high-temperature of 29.1°C (84.4°F), are the coldest months.

What is the most humid month in Port Blair?

Months with the highest humidity are August and September, with an average relative humidity of 85%.
Average temperature - Port Blair, India
Average humidity - Port Blair, India
Average rainfall - Port Blair, India

The wettest month (with the highest rainfall) is June (501.1mm).
The driest month (with the lowest rainfall) is February (26.5mm).

Average rainfall days - Port Blair, India

The month with the highest number of rainy days is August (23.4 days).
The month with the lowest number of rainy days is March (1.4 days).

Average sea temperature - Port Blair, India

Best months for swimming (with the highest average sea temperature) are April and May (30.3°C).
The coldest month (with the lowest average sea temperature) is January (27.8°C).

Average daylight / Average sunshine - Port Blair, India

The month with the longest days is June (Average daylight: 12.8h).
Months with shortest days are January and December (Average daylight: 11.5h).

The month with most sunshine is February (Average sunshine: 9.4h).
The month with least sunshine is June (Average sunshine: 2.9h).

Average UV index - Port Blair, India

Months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
Months with the lowest UV index are January, November and December (UV index 10).