Penang Weather in September

September in Penang sees daytime temperatures around 31°C (88°F) and lows of 26°C (79°F) at night. Being part of the rainy season, heavy rainfall is a regular part of the day, so pack accordingly.

Rainfall in Penang in September

As part of the rainy season, Penang sees around 23 days of rain in September, with an average of 248 mm (9.8 in). Rainfall this month is frequent and tends to be fairly heavy when it does fall. Packing waterproofs is a good idea.

Temperature in Penang in September

In September, expect very high temperatures in Penang, with highs of 31°C (88°F) and lows of 26°C (79°F) at night. Mornings and evenings are often more comfortable than the peak afternoon hours. At 26°C (79°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.

Sunshine in Penang in September

The area enjoys a balanced 162 hours of sunlight, ensuring it's neither too rainy nor too sunny.

Wind Speed in Penang in September

September has wind speeds averaging 1 m/s (2 knots). You can expect very gentle conditions with light air movement on typical days. Since this is an average, daily weather varies from perfectly still moments to some breezier days.

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, February, June and July typically offer the best weather for Penang.