Bulletin updated at 16:30 HKT 21/Sep/2026
9-Day Weather Forecast General Situation: The northeast monsoon will affect the coast of southern China gradually tomorrow. Meanwhile, upper-air disturbances will bring showers to the region. Under the persistent influence of the monsoon, the weather will be mainly fine over Guangdong in the middle and latter parts of this week. It will be dry during the day. With the monsoon moderating, it will be hot with isolated showers over Guangdong over the weekend. Besides, a tropical cyclone is expected to develop gradually over the western North Pacific to the east of the Philippines in the next couple of days, and move in the general direction of the seas east of Luzon in the latter part of this week. However, its subsequent movement remains uncertain. Date/Month 22/9 (Tuesday) Wind: Light winds force 2, becoming east force 3 to 4. Weather: Mainly cloudy with one or two showers. Sunny intervals during the day. Temp Range: 27 - 32 C R.H. Range: 65 - 95 Per Cent PSR: Medium Low Date/Month 23/9(Wednesday) Wind: East force 4. Weather: Sunny periods and isolated showers. Temp Range: 27 - 31 C R.H. Range: 65 - 90 Per Cent PSR: Low Date/Month 24/9(Thursday) Wind: East force 4. Weather: Mainly fine. Cloudy periods in the morning and at night. Temp Range: 27 - 32 C R.H. Range: 55 - 85 Per Cent PSR: Low Date/Month 25/9(Friday) Wind: East force 3 to 4. Weather: Mainly fine. Cloudy periods in the morning and at night. Temp Range: 27 - 32 C R.H. Range: 55 - 85 Per Cent PSR: Low Date/Month 26/9(Saturday) Wind: East force 2 to 3. Weather: Sunny periods and isolated showers. Cloudy periods in the morning and at night. Temp Range: 27 - 32 C R.H. Range: 65 - 90 Per Cent PSR: Low Date/Month 27/9(Sunday) Wind: Light winds force 2. Weather: Sunny periods and isolated showers. Temp Range: 27 - 32 C R.H. Range: 60 - 90 Per Cent PSR: Low Date/Month 28/9(Monday) Wind: Light winds force 2. Weather: Mainly fine. Very hot during the day. Temp Range: 27 - 33 C R.H. Range: 55 - 85 Per Cent PSR: Low Date/Month 29/9(Tuesday) Wind: West force 2 to 3. Weather: Mainly fine. Very hot during the day. Isolated showers later. Temp Range: 27 - 33 C R.H. Range: 60 - 90 Per Cent PSR: Low Date/Month 30/9(Wednesday) Wind: Northwest force 4, occasionally force 5 offshore. Weather: Mainly cloudy with a few showers. Sunny intervals during the day. Temp Range: 27 - 32 C R.H. Range: 70 - 95 Per Cent PSR: Medium Sea surface temperature at 2 p.m.21/9/2026 at North Point was 28 degrees C. Soil temperatures at 7 a.m.21/9/2026 at the Hong Kong Observatory: 0.5 M below surface was 30.0 degrees C. 1.0 M below surface was 29.9 degrees C. Weather Cartoons for 9-day weather forecast Day 1 cartoon no. 54 - Sunny Intervals with Showers Day 2 cartoon no. 51 - SUNNY PERIODS Day 3 cartoon no. 51 - SUNNY PERIODS Day 4 cartoon no. 51 - SUNNY PERIODS Day 5 cartoon no. 51 - SUNNY PERIODS Day 6 cartoon no. 51 - SUNNY PERIODS Day 7 cartoon no. 90 - Hot Day 8 cartoon no. 90 - Hot Day 9 cartoon no. 54 - Sunny Intervals with Showers
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