Bulletin updated at 11:30 HKT 16/Jul/2025
9-Day Weather Forecast General Situation: Under the influence of an anticyclone aloft, the weather will be persistently very hot over Guangdong tomorrow. Showers triggered by high temperatures will also affect the region. Meanwhile, a broad area of low pressure over the seas east of the Philippines will develop into a tropical cyclone. It is expected to move towards the vicinity of Luzon in the latter part of this week, enter the northern part of the South China Sea afterwards and intensify gradually, edge closer to the coast of southern China. However, there are uncertainties over its movement and intensity. Under the influence of its outer subsiding air, the weather will be extremely hot over Guangdong. The tropical cyclone will bring squally showers and thunderstorms to the coast of Guangdong and the northern part of the South China Sea during the weekend to early next week. There will be swells. Under the influence of a broad trough of low pressure, there will still be a few showers over the region midweek next week. Date/Month 17/7 (Thursday) Wind: Southwest force 2 to 3. Weather: Mainly fine. Extremely hot with isolated showers during the day. Temp Range: 28 - 35 C R.H. Range: 55 - 90 Per Cent Date/Month 18/7(Friday) Wind: Light winds force 2. Weather: Sunny periods and a few showers. Very hot during the day. Isolated thunderstorms later. Temp Range: 28 - 34 C R.H. Range: 55 - 95 Per Cent Date/Month 19/7(Saturday) Wind: Light winds force 2, becoming north to northeast force 4 to 5, occasionally force 6 offshore. Weather: Mainly cloudy with a few showers. Very hot with sunny periods during the day. More showers with a few squally thunderstorms later. There will be swells. Temp Range: 27 - 34 C R.H. Range: 65 - 95 Per Cent Date/Month 20/7(Sunday) Wind: East to northeast force 5 to 6, up to force 8 offshore and on high ground. Weather: cloudy with occasional squally showers and thunderstorms. Showers will be heavier at times. There will be swells. Temp Range: 27 - 30 C R.H. Range: 80 - 95 Per Cent Date/Month 21/7(Monday) Wind: East to southeast force 5, occasionally force 6 at first, up to force 7 offshore and on high ground. Weather: Cloudy with occasional showers and squally thunderstorms. Showers will be heavier at times. There will be swells. Temp Range: 27 - 30 C R.H. Range: 80 - 95 Per Cent Date/Month 22/7(Tuesday) Wind: South to southeast force 4 to 5, occasionally force 6 offshore and on high ground at first. Weather: Mainly cloudy with occasional showers and squally thunderstorms. Showers will be heavier at first. Temp Range: 27 - 30 C R.H. Range: 75 - 95 Per Cent Date/Month 23/7(Wednesday) Wind: Southeast force 4, occasionally force 5. Weather: Mainly cloudy with a few showers and thunderstorms. Sunny intervals during the day. Temp Range: 27 - 31 C R.H. Range: 70 - 95 Per Cent Date/Month 24/7(Thursday) Wind: Southeast force 4. Weather: Mainly cloudy with a few showers and thunderstorms. Sunny intervals during the day. Temp Range: 27 - 32 C R.H. Range: 70 - 95 Per Cent Date/Month 25/7(Friday) Wind: Southeast force 4. Weather: Mainly cloudy with a few showers and thunderstorms. Sunny intervals during the day. Temp Range: 27 - 32 C R.H. Range: 70 - 95 Per Cent Sea surface temperature at 7 a.m.16/7/2025 at North Point was 25 degrees C. Soil temperatures at 7 a.m.16/7/2025 at the Hong Kong Observatory: 0.5 M below surface was 30.2 degrees C. 1.0 M below surface was 29.7 degrees C. Weather Cartoons for 9-day weather forecast Day 1 cartoon no. 90 - Hot Day 2 cartoon no. 90 - Hot Day 3 cartoon no. 53 - Sunny Periods with A Few Showers Day 4 cartoon no. 64 - Heavy Rain Day 5 cartoon no. 64 - Heavy Rain Day 6 cartoon no. 63 - Rain Day 7 cartoon no. 54 - Sunny Intervals with Showers Day 8 cartoon no. 54 - Sunny Intervals with Showers Day 9 cartoon no. 54 - Sunny Intervals with Showers
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