Hong Kong Weather in September

During September, Hong Kong experiences very high daytime temperatures of 31°C (88°F) and cooler nights around 26°C (79°F). September sits within the rainy season, so expect regular and often heavy rainfall.

Rainfall in Hong Kong in September

As part of the rainy season, Hong Kong sees around 14 days of rain in September, with an average of 222 mm (8.7 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.

Temperature in Hong Kong in September

Hong Kong in September gets highs of 31°C (88°F) during the day and drops to 26°C (79°F) at night. The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. 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 Hong Kong in September

You can expect a moderate amount of sunlight, with approximately 175 hours. Even though this month is part of the wet season, you can still see the sun occasionally.

Wind Speed in Hong Kong in September

September sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.

Average water temperature in September

With water at 28°C (82°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period, it feels comfortable straight away.

September in Hong Kong has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.