Weather in Hongkong in september
Country-wide climate normals across 15 cities in Hongkong.
How Hot Is Hongkong in september?
Uniform heat across Hongkong's September: averages climb to 30°C nationally with overnight lows of 26°C, narrow spread from coast to interior. The hottest cities like Yuen Long San Hui register similar readings to the coolest, so plan for consistently hot weather across the country.
Sunshine in Hongkong in september
Persistent cloud and grey skies define Hongkong's September: about 1.6h of sun a day in Hong Kong. Daylight is in short supply too, running from 6:10 am to 6:25 pm, and most regions of the country see similar overcast conditions. Bright stretches are uncommon and brief.
Does It Rain In Hongkong In september?
Heavy seasonal rains saturate Hongkong in September — Hong Kong averages 310mm of rain across 21 days, with downpours an almost daily feature. The pattern is consistent across most regions, particularly along monsoon-affected coasts. Expect torrential afternoon storms followed by humid heat.
Is Hongkong Humid In september?
Hongkong feels humid through September: 75% in Hong Kong, similar nationwide. Warm days feel several degrees hotter than the thermometer suggests, and morning mist or post-rain steam is common. Drier upland or interior regions may feel a bit less oppressive.
Wind In Hongkong In september
Hongkong's September has gentle wind — Hong Kong averages 17 kph, and the country tracks similarly. Outdoor activity is comfortable, and afternoon thermals add a pleasant breeze in inland areas.
Cloud Cover In Hongkong In september
Cloudy skies dominate Hongkong in September — 73% cover in Hong Kong, with similar overcast conditions in most regions. Direct sun is patchy and broken; expect grey stretches between brief bright moments. Coastal areas may be heavier than inland.