Biyagama Weather in September

Biyagama in September averages 31°C (88°F) during the day and 25°C (77°F) at night. September is part of the rainy season, so frequent rainfall is typical.

Rainfall in Biyagama in September

Biyagama is in the rainy season in September, with rain on around 14 days and an average of 272 mm (11 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.

Temperature in Biyagama in September

Daytime temperatures in Biyagama reach 31°C (88°F) in September, dropping to 25°C (77°F) at night. Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With lows around 25°C (77°F), the nights are warm enough that a sheet is usually all you need for bedding.

Sunshine in Biyagama in September

The area enjoys a balanced 189 hours of sunlight, ensuring it's neither too rainy nor too sunny.

Wind Speed in Biyagama in September

Average wind conditions reach 2 m/s (4 knots) in September. This creates comfortable weather with light winds that gently move vegetation. Keep in mind this is an average. Daily conditions range from near-calm to more noticeable wind.

Average water temperature in September

The water temperature is 28°C (82°F), which most people find very comfortable. A good month for swimming and water sports.

September in Biyagama can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.