Port Blair Weather in September

Port Blair in September averages 29°C (84°F) during the day and 26°C (79°F) at night. September is part of the rainy season, so frequent rainfall is typical.

Rainfall in Port Blair in September

As part of the rainy season, Port Blair sees around 17 days of rain in September, with an average of 341 mm (13 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.

Temperature in Port Blair in September

If you're visiting Port Blair in September, expect highs of 29°C (84°F) and overnight lows around 26°C (79°F). Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 26°C (79°F), nights stay very warm. Air conditioning makes a real difference if you're sensitive to heat. A cold shower before bed can also help you get to sleep more comfortably.

Sunshine in Port Blair in September

The area enjoys a moderate level of sunlight, with around 125 hours. It's a good balance between sunny and rainy days.

Wind Speed in Port Blair in September

September has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.

Average water temperature in September

At 28°C (82°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January and February typically offer the best weather for Port Blair.