Bulletin updated at 08:50 HKT 15/Sep/2018
9-Day Weather Forecast General Situation: Super Typhoon Mangkhut will move across the northern part of the South China Sea today. Its outer subsiding air will bring very hot weather to Guangdong. There will be swells over the coastal waters. Mangkhut will edge closer to the coast of Guangdong gradually and pose a severe threat to the region. The weather will deteriorate significantly with frequent heavy rain, squalls and storm surge tomorrow. Under the influence of an upper-air anticyclone, it will be generally fine over southern China midweek next week. Date/Month 15/9 (Saturday) Wind: Northeast force 4 to 5, occasionally force 6 on high ground, up to force 7 later in the afternoon. Weather: Mainly fine and very hot with some haze. A few showers and thunderstorms later. Seas will be rough with swells. Temp Range: 27 - 35 C R.H. Range: 55 - 90 Per Cent Date/Month 16/9(Sunday) Wind: Northeast force 8 to 9, becoming southeast force 10 to 11, up to force 12 offshore and on high ground. Weather: Cloudy to overcast. Frequent heavy rain, squalls and thunderstorms. Seas will be high with swells. Temp Range: 25 - 28 C R.H. Range: 80 - 95 Per Cent Date/Month 17/9(Monday) Wind: Southeast force 8 to 9, force 5 to 6 later. Weather: Cloudy with heavy squally showers and thunderstorms. Seas will be rough to very rough with swells. Temp Range: 25 - 28 C R.H. Range: 80 - 95 Per Cent Date/Month 18/9(Tuesday) Wind: Southeast force 4, occasionally force 5 offshore. Weather: Cloudy with occasional showers. Temp Range: 26 - 29 C R.H. Range: 75 - 95 Per Cent Date/Month 19/9(Wednesday) Wind: East force 3 to 4. Weather: Sunny periods and one or two showers. Temp Range: 26 - 31 C R.H. Range: 70 - 90 Per Cent Date/Month 20/9(Thursday) Wind: East force 3 to 4. Weather: Mainly fine. Temp Range: 26 - 32 C R.H. Range: 65 - 85 Per Cent Date/Month 21/9(Friday) Wind: East force 3. Weather: Mainly fine apart from isolated showers. Temp Range: 26 - 32 C R.H. Range: 65 - 85 Per Cent Date/Month 22/9(Saturday) Wind: East to northeast force 3. Weather: Sunny periods and one or two showers. Temp Range: 26 - 31 C R.H. Range: 70 - 90 Per Cent Date/Month 23/9(Sunday) Wind: East force 4. Weather: Sunny periods and one or two showers. Temp Range: 26 - 31 C R.H. Range: 70 - 90 Per Cent Sea surface temperature at 7 a.m.15/9/2018 at North Point was 27 degrees C. Soil temperatures at 7 a.m.15/9/2018 at the Hong Kong Observatory: 0.5 M below surface was 28.9 degrees C. 1.0 M below surface was 29.1 degrees C. Weather Cartoons for 9-day weather forecast Day 1 cartoon no. 90 - Hot Day 2 cartoon no. 64 - Heavy Rain Day 3 cartoon no. 64 - Heavy Rain Day 4 cartoon no. 63 - Rain Day 5 cartoon no. 53 - Sunny Periods with A Few Showers Day 6 cartoon no. 51 - SUNNY PERIODS Day 7 cartoon no. 51 - SUNNY PERIODS Day 8 cartoon no. 53 - Sunny Periods with A Few Showers Day 9 cartoon no. 53 - Sunny Periods with A Few Showers