Bulletin updated at 04:15 HKT 21/Dec/2025
9-Day Weather Forecast General Situation: A replenishment of the northeast monsoon will reach the coast of Guangdong this morning. It will be windier on Monday and at first on Tuesday, and temperatures will fall slightly. With the monsoon moderating, temperatures over the region will rise midweek this week. Under the influence of another dry replenishment of the monsoon, temperatures over the coast of southern China will fall again during Christmas holidays. It will be cool in the morning and at night over the region. The weather will improve and it will be dry over the coastal areas of Guangdong during the weekend. The temperature difference between day and night will be relatively large over inland areas. Date/Month 21/12 (Sunday) Wind: Northeast force 3 to 4, occasionally force 5 offshore and on high ground later. Weather: Mainly fine and dry. Warm during the day. Temp Range: 20 - 25 C R.H. Range: 50 - 80 Per Cent PSR: Low Date/Month 22/12(Monday) Wind: East to northeast force 4 to 5, occasionally force 6 offshore and on high ground. Weather: Mainly cloudy. Sunny periods during the day. Temp Range: 18 - 21 C R.H. Range: 60 - 80 Per Cent PSR: Low Date/Month 23/12(Tuesday) Wind: East to northeast force 4 to 5, occasionally force 6 offshore and on high ground at first. Weather: Mainly cloudy with one or two light rain patches. Sunny intervals during the day. Temp Range: 19 - 22 C R.H. Range: 65 - 90 Per Cent PSR: Low Date/Month 24/12(Wednesday) Wind: Northeast force 3 to 4 . Weather: Mainly cloudy. One or two light rain patches at first. Warm with sunny periods during the day. Temp Range: 19 - 24 C R.H. Range: 60 - 85 Per Cent PSR: Low Date/Month 25/12(Thursday) Wind: North to northeast force 4 to 5. Weather: Becoming cool. Mainly cloudy. Dry during the day. Temp Range: 17 - 21 C R.H. Range: 55 - 75 Per Cent PSR: Low Date/Month 26/12(Friday) Wind: North to northeast force 4, occasionally force 5 at first. Weather: Mainly cloudy. Cool in the morning and at night. Dry with sunny periods during the day. Temp Range: 15 - 19 C R.H. Range: 50 - 75 Per Cent PSR: Low Date/Month 27/12(Saturday) Wind: East to northeast force 3 to 4. Weather: Dry and becoming fine. Cool in the morning and at night. Temp Range: 16 - 21 C R.H. Range: 45 - 70 Per Cent PSR: Low Date/Month 28/12(Sunday) Wind: Northeast force 3. Weather: Mainly fine and dry. Cool in the morning and at night. Temp Range: 16 - 22 C R.H. Range: 40 - 70 Per Cent PSR: Low Date/Month 29/12(Monday) Wind: East to northeast force 3. Weather: Mainly fine and dry. Cool in the morning and at night. Temp Range: 17 - 22 C R.H. Range: 40 - 70 Per Cent PSR: Low Sea surface temperature at 2 p.m.20/12/2025 at North Point was 21 degrees C. Soil temperatures at 7 a.m.20/12/2025 at the Hong Kong Observatory: 0.5 M below surface was 23.1 degrees C. 1.0 M below surface was 24.5 degrees C. Weather Cartoons for 9-day weather forecast Day 1 cartoon no. 50 - SUNNY Day 2 cartoon no. 51 - SUNNY PERIODS Day 3 cartoon no. 52 - SUNNY INTERVALS Day 4 cartoon no. 51 - SUNNY PERIODS Day 5 cartoon no. 92 - Cool Day 6 cartoon no. 92 - Cool Day 7 cartoon no. 51 - SUNNY PERIODS Day 8 cartoon no. 50 - SUNNY Day 9 cartoon no. 50 - SUNNY
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