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Port Blair Weather by Month
Average temperatures, rainfall and humidity for Port Blair, India, month by month, built from OpenWeather’s historical records. Use it to see what a typical Port Blair month looks like before you travel — then check the live Port Blair forecast for the days ahead.
Warmest month
April
31°C average high
Coolest month
February
25°C average low
Wettest month
July
183 mm of rain
Driest month
February
11 mm of rain
Average temperature and rainfall in Port Blair by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 29°C | 25°C | 19°C / 39°C | 24 mm | 83% | 17 km/h |
| February | 29°C | 25°C | 19°C / 39°C | 11 mm | 82% | 16 km/h |
| March | 30°C | 26°C | 21°C / 38°C | 12 mm | 79% | 11 km/h |
| April | 31°C | 27°C | 23°C / 36°C | 25 mm | 79% | 9 km/h |
| May | 31°C | 28°C | 23°C / 37°C | 132 mm | 84% | 16 km/h |
| June | 30°C | 27°C | 23°C / 39°C | 181 mm | 88% | 24 km/h |
| July | 29°C | 27°C | 23°C / 32°C | 183 mm | 89% | 25 km/h |
| August | 29°C | 26°C | 23°C / 37°C | 158 mm | 89% | 24 km/h |
| September | 29°C | 26°C | 23°C / 33°C | 172 mm | 90% | 21 km/h |
| October | 29°C | 26°C | 24°C / 34°C | 93 mm | 88% | 14 km/h |
| November | 29°C | 27°C | 20°C / 38°C | 81 mm | 85% | 15 km/h |
| December | 29°C | 26°C | 20°C / 32°C | 58 mm | 85% | 18 km/h |
Best time to visit Port Blair
The most comfortable time to visit Port Blair is generally January to March, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around July, totalling about 1,131 mm a year.
Travellers who prefer heat should aim for April, when highs average 31°C. July is the month to avoid if rain would spoil your plans — it averages 183 mm, roughly 17× the rainfall of the driest month (February).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Port Blair forecast for what is happening now.