Water temperature in Port Blair

This data the coastal Port Blair sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Port Blair

Water temperature in Port Blair today is 28.6°C. Based on our historical data over a period of ten years, the warmest water in this day in Port Blair was recorded in 2020 and was 29.2°C, and the coldest was recorded in 2012 at 27.5°C. Sea water temperature in Port Blair is expected to drop to 28.5°C in the next 10 days. September average water temperature in Port Blair is 28.6°C, the minimum temperature is 27°C, and the maximum is 30°C.

The swimming season in Port Blair lasts from January to December, twelve months per year! During those months, Port Blair water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Port Blair in winter reaches 28.3°C, in spring 29.9°C, in summer the average temperature rises to 28.8°C, and in autumn it is 28.9°C.

Port Blair water temperature now

The sea salinity in Port Blair is 32.53‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Port Blair for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Port Blair. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Port Blair. Data in table shown for 7 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Port Blair

Port Blair weather forecast

Current temperature and weather

Data in a table show Port Blair temperature today (7 September 2025). For more information and forecast for a few days, go to the weather forecast Port Blair.

0-3 h	3-6 h	6-9 h	9-12 h
26.2°C	26.2°C	26.5°C	27.4°C

12-15 h	15-18 h	18-21 h	21-24 h
27.9°C	27.6°C	26.9°C	27.1°C

Port Blair water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Port Blair. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Port Blair on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Port Blair

The nearest beaches and cities from Port Blair with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Bombooflat	28.6°C	28°C		0.34 m
Havelock Island	28.4°C	28°C		0.38 m
Barren Island	29°C	26°C		0.86 m
Narkondam Island	28.9°C	26°C		0.67 m
Irrawaddy Delta	28.4°C	28°C		0.48 m
Surin Islands	28.3°C	28°C		1.11 m
Ngwesaung	28.3°C	31°C		0.69 m
Similan Islands	28.2°C	28°C		1.35 m
Myeik	28.8°C	28°C		0.11 m
Ko Phayam	28.5°C	28°C		0.8 m

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Our report for Port Blair is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.