Expand
Contents
- The best time to visit Port Blair
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
The best time to visit Port Blair
February is the best period for swimming and other water activities in Port Blair, India, as the sea temperature is 28.3°C (82.9°F), the rain falls for only 3.8 days, and 15mm (0.59") of rainfall is accumulated.
Weather in January
January, the same as December, is a moderately hot winter month in Port Blair, India, with an average temperature fluctuating between 26.3°C (79.3°F) and 27.9°C (82.2°F). With an average high-temperature of 27.9°C (82.2°F) and an average low-temperature of 26.3°C (79.3°F), January is the coldest month. Throughout January, the heat index is calculated to be a hot 31°C (87.8°F). Weather in January »
Weather in February
February, the last month of the winter in Port Blair, is also a moderately hot month, with an average temperature ranging between max 28.1°C (82.6°F) and min 26.3°C (79.3°F). The perfect water temperature of 28.3°C (82.9°F) with 15mm (0.59") of accumulated rainfall and only 3.8 rainfall days, makes February a great period for swimming and other water activities. Weather in February »
Weather in March
The first month of the pre-monsoon summer, March, is still a warm month in Port Blair, India, with an average temperature varying between 27.2°C (81°F) and 29.1°C (84.4°F). The arrival of March brings an average high-temperature of a still moderately hot 29.1°C (84.4°F), nearly identical to February's 28.1°C (82.6°F). Weather in March »
Weather in April
April is a hot pre-monsoon summer month in Port Blair, India, with an average temperature varying between 30.1°C (86.2°F) and 28.3°C (82.9°F). The highest point of temperatures falls in April and May, when the average high-temperature ascends to 30.1°C (86.2°F). April's average heat index is calculated to be a torrid 36°C (96.8°F). Weather in April »
Weather in May
May, the last month of the pre-monsoon summer in Port Blair, is another hot month, with an average temperature varying between 28.8°C (83.8°F) and 30.1°C (86.2°F). During April and May, Port Blair registers its highest temperatures, averaging a high of 30.1°C (86.2°F). The heat index for May is calculated to be a fiery hot 37°C (98.6°F). Weather in May »
Weather in June
June, the first month of the rainy (monsoon) season in Port Blair, is also a moderately hot month, with an average temperature ranging between max 29.3°C (84.7°F) and min 28.1°C (82.6°F). The transition from May to June sees an average high-temperature of a moderately hot 29.3°C (84.7°F), indicating a minor variance from the prior month. Weather in June »
Weather in July
July, the same as June, is another warm rainy (monsoon) season month in Port Blair, India, with an average temperature fluctuating between 27.8°C (82°F) and 28.8°C (83.8°F). July brings an average high-temperature of a still warm 28.8°C (83.8°F), nearly identical to the preceding month. Weather in July »
Weather in August
August, the same as July, is a moderately hot rainy (monsoon) season month in Port Blair, India, with temperature in the range of an average high of 28.8°C (83.8°F) and an average low of 27.6°C (81.7°F). The beginning of August denotes an average high temperature of a still moderately hot 28.8°C (83.8°F), aligning closely with July. Weather in August »
Weather in September
The last month of the rainy (monsoon) season, September, is another warm month in Port Blair, India, with an average temperature fluctuating between 27.5°C (81.5°F) and 28.4°C (83.1°F). Port Blair measures an average high-temperature of a still warm 28.4°C (83.1°F) in September, nearly consistent with the preceding month. Weather in September »
Weather in October
October, the first month of the post-monsoon autumn in Port Blair, is also a moderately hot month, with an average temperature varying between 28.9°C (84°F) and 27.8°C (82°F). Port Blair registers an average high-temperature of a still moderately hot 28.9°C (84°F) at the commencement of October, closely related to the preceding month. Weather in October »
Weather in November
November, the last month of the post-monsoon autumn in Port Blair, is also a moderately hot month, with an average temperature varying between 27.8°C (82°F) and 29.2°C (84.6°F). The arrival of November denotes a barely perceptible change in the average high-temperatures to a still moderately hot 29.2°C (84.6°F) from October's 28.9°C (84°F). Weather in November »
Weather in December
December, the first month of the winter in Port Blair, is still a warm month, with an average temperature fluctuating between 28.2°C (82.8°F) and 26.8°C (80.2°F). With December's arrival, Port Blair's weather records an average high-temperature of a still warm 28.2°C (82.8°F), marking little difference from November's 29.2°C (84.6°F). Weather in December »
Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months in Port Blair?
With an average high-temperature of 27.9°C (82.2°F) and an average low-temperature of 26.3°C (79.3°F), January is the coldest month.
How much does it rain in Port Blair?
Throughout the year, in Port Blair, there are 240.3 rainfall days, and 1806mm (71.1") of precipitation is accumulated.
When is the sea coldest in Port Blair?
January is the month with the coldest seawater, with an average sea temperature of 27.8°C (82°F).
When is the highest UV index in Port Blair?
The months with the highest UV index in Port Blair, India, are January through May, October through December, with an average maximum UV index of 7.
What is the driest month in Port Blair?
The month with the least rainfall in Port Blair is February, when the rain falls for 3.8 days and typically collects 15mm (0.59") of precipitation.
What month has the most sunshine in Port Blair?
With an average of 9.9h of sunshine, February has the most sunshine of the year in Port Blair.
What is the least humid month in Port Blair?
March is the least humid month in Port Blair, with an average relative humidity of 70%.
What time of the year is the hottest in Port Blair?
Port Blair's temperature peaks during April and May, with an average high-temperature of 30.1°C (86.2°F).
When is the sea warmest in Port Blair?
April and May, with an average sea temperature of 30.3°C (86.5°F), are months with the warmest seawater.
When are the longest days in Port Blair?
With an average of 12h and 48min of daylight, June has the longest days of the year.
What are the months with the least sunshine in Port Blair?
The months with the least sunshine in Port Blair, India, are June and September, with an average of 6.9h of sunshine.
What are the months with the lowest UV index in Port Blair?
The months with the lowest UV index in Port Blair are June through September, with an average maximum UV index of 6.
What is the most humid month in Port Blair?
With an average relative humidity of 81%, July is the most humid month in Port Blair, India.
What is the rainiest month in Port Blair?
The month with the most rainfall in Port Blair is September, when the rain falls for 29 days and typically aggregates up to 266mm (10.47") of precipitation.
What is the month with the shortest days in Port Blair?
December has the shortest days of the year in Port Blair, India, with an average of 11h and 30min of daylight.
Is there Daylight Saving Time (DST) in Port Blair?
Port Blair does not utilize Daylight Saving Time (DST). IST timezone is used throughout the entire year.
Average temperature
Port Blair, India
The warmest months (with the highest average high temperature) are April and May (30.1°C).
The month with the lowest average high temperature is January (27.9°C).
The month with the highest average low temperature is May (28.8°C).
The coldest months (with the lowest average low temperature) are January and February (26.3°C).
Average pressure
Port Blair, India
- Average pressure in January:
1011.8mbar - Average pressure in February:
1011.7mbar - Average pressure in March:
1011mbar - Average pressure in April:
1009.7mbar - Average pressure in May:
1007.8mbar - Average pressure in June:
1006.9mbar
- Average pressure in July:
1007.1mbar - Average pressure in August:
1007.5mbar - Average pressure in September:
1008.6mbar - Average pressure in October:
1009.4mbar - Average pressure in November:
1009.7mbar - Average pressure in December:
1010.7mbar
The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1006.9mbar).
Average wind speed
Port Blair, India
- Average wind speed in January:
19km/h - Average wind speed in February:
15.9km/h - Average wind speed in March:
11km/h - Average wind speed in April:
9.6km/h - Average wind speed in May:
17.5km/h - Average wind speed in June:
28.5km/h
- Average wind speed in July:
28.3km/h - Average wind speed in August:
27.6km/h - Average wind speed in September:
23.2km/h - Average wind speed in October:
15.8km/h - Average wind speed in November:
16.7km/h - Average wind speed in December:
20.2km/h
The windiest month (with the highest average wind speed) is June (28.5km/h).
The calmest month (with the lowest average wind speed) is April (9.6km/h).
Average humidity
Port Blair, India
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is March (70%).
Average rainfall
Port Blair, India
- Average rainfall in January:
47mm - Average rainfall in February:
15mm - Average rainfall in March:
22mm - Average rainfall in April:
50mm - Average rainfall in May:
211mm - Average rainfall in June:
262mm
- Average rainfall in July:
227mm - Average rainfall in August:
236mm - Average rainfall in September:
266mm - Average rainfall in October:
189mm - Average rainfall in November:
155mm - Average rainfall in December:
126mm
The wettest month (with the highest rainfall) is September (266mm).
The driest month (with the least rainfall) is February (15mm).
Average rainfall days
Port Blair, India
- Average rainfall days in January:
11.3 days - Average rainfall days in February:
3.8 days - Average rainfall days in March:
7.2 days - Average rainfall days in April:
12.2 days - Average rainfall days in May:
25.7 days - Average rainfall days in June:
28.1 days
- Average rainfall days in July:
29.6 days - Average rainfall days in August:
29 days - Average rainfall days in September:
29 days - Average rainfall days in October:
26.7 days - Average rainfall days in November:
21.6 days - Average rainfall days in December:
16.1 days
The month with the highest number of rainy days is July (29.6 days).
The month with the least rainy days is February (3.8 days).
Average sea temperature
Port Blair, India
The 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
- Average daylight in January:
11h and 3min - Average daylight in February:
11h and 5min - Average daylight in March:
12h and 1min - Average daylight in April:
12h and 2min - Average daylight in May:
12h and 4min - Average daylight in June:
12h and 5min
- Average daylight in July:
12h and 4min - Average daylight in August:
12h and 3min - Average daylight in September:
12h and 1min - Average daylight in October:
11h and 5min - Average daylight in November:
11h and 4min - Average daylight in December:
11h and 3min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in January:
9h and 1min - Average sunshine in February:
9h and 5min - Average sunshine in March:
9h and 4min - Average sunshine in April:
9h and 2min - Average sunshine in May:
7h and 5min - Average sunshine in June:
6h and 5min
- Average sunshine in July:
7h and 1min - Average sunshine in August:
7h and 1min - Average sunshine in September:
6h and 5min - Average sunshine in October:
8h and 1min - Average sunshine in November:
9h and 0min - Average sunshine in December:
8h and 5min
The month with the most sunshine is February (Average sunshine: 9h and 54min).
The months with the least sunshine are June and September (Average sunshine: 6h and 54min).
Average sunshine days
Port Blair, India
- Average sunshine days in January:
18 days - Average sunshine days in February:
23.2 days - Average sunshine days in March:
22.5 days - Average sunshine days in April:
16.2 days - Average sunshine days in May:
3.8 days - Average sunshine days in June:
1.1 days
- Average sunshine days in July:
1.1 days - Average sunshine days in August:
1.3 days - Average sunshine days in September:
0.6 days - Average sunshine days in October:
2.8 days - Average sunshine days in November:
6.5 days - Average sunshine days in December:
13.5 days
The month with the most sunshine days is February (23.2 days).
The month with the least sunshine days is September (0.6 days).
Average UV index
Port Blair, India
The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The months with the lowest UV index are June, July, August and September (UV index 6).
Average cloud cover
Port Blair, India
The months with the most cloud cover are June and September (Cloud cover 53).
The month with the least cloud cover is February (Cloud cover 12).
Average visibility
Port Blair, India
The months with the highest visibility are January, February, March, April, October, November and December (10km).
The months with the lowest visibility are May, June, July, August and September (9km).
