General Situation
The tropical cyclone over the northeastern part of the South China Sea will edge closer to the coast of eastern Guangdong and intensify gradually today and tomorrow. Under the influence of the northeast monsoon, the tropical cyclone will then turn westwards, moving closer to the vicinity of the Pearl River Estuary. It will be windy with squally showers and thunderstorms over the region in the next couple of days. With the tropical cyclone departing, the weather over Guangdong will improve briefly and will be very hot early next week. The other tropical cyclone over the western North Pacific to the east of the Philippines is expected to intensify significantly in the next few days, and enter the northern part of the South China Sea early next week. It will then edge closer to the coast of southern China. Under the influence of its broad circulation, the weather over the region will deteriorate significantly with winds strengthening again midweek next week. There will be heavy squally showers, thunderstorms and storm surge. Seas will be rough with swells.
Friday, Sep 19
Mainly cloudy with a few showers and thunderstorms. Sunny intervals at first. Showers will increase gradually with squall.
Max Temp: 32°C
Min Temp: 27°C
Humidity: 65-95%
Wind: North to northwest force 4 to 5, occasionally force 6 later, up to force 7 offshore and on high ground.
Probability of Significant Rain: Medium High
Saturday, Sep 20
Mainly cloudy with occasional squally showers and thunderstorms. Showers will be heavy at times. Seas will be rough with swells.
Max Temp: 31°C
Min Temp: 26°C
Humidity: 70-95%
Wind: West to southwest force 5, occasionally force 6 at first, up to force 7 offshore and on high ground.
Probability of Significant Rain: High
Sunday, Sep 21
Mainly cloudy with occasional showers and squally thunderstorms. Showers will be heavier at times at first. There will be swells.
Max Temp: 31°C
Min Temp: 26°C
Humidity: 70-95%
Wind: South to southeast force 4 to 5.
Probability of Significant Rain: Medium High
Monday, Sep 22
Sunny periods and one or two showers. Very hot during the day.
Max Temp: 34°C
Min Temp: 27°C
Humidity: 60-90%
Wind: East to northeast force 3 to 4.
Probability of Significant Rain: Medium Low
Tuesday, Sep 23
Sunny periods. Very hot during the day. Squally showers and thunderstorms later. There will be swells.
Max Temp: 34°C
Min Temp: 27°C
Humidity: 60-95%
Wind: North force 4, force 5 later, occasionally force 6 offshore and on high ground.
Probability of Significant Rain: Medium
Wednesday, Sep 24
Cloudy to overcast with heavy squally showers and thunderstorms. Seas will be very rough with swells.
Max Temp: 30°C
Min Temp: 26°C
Humidity: 80-95%
Wind: North to northeast force 6 to 7, up to force 9 offshore and on high ground, becoming east to southeast later.
Probability of Significant Rain: High
Thursday, Sep 25
Cloudy with squally showers and thunderstorms. Showers will be heavier at first. Seas will be very rough with swells.
Max Temp: 30°C
Min Temp: 26°C
Humidity: 80-95%
Wind: East to southeast force 5 to 6, force 7 offshore and on high ground at first.
Probability of Significant Rain: High
Friday, Sep 26
Mainly cloudy with occasional showers and a few thunderstorms.
Max Temp: 31°C
Min Temp: 26°C
Humidity: 75-95%
Wind: East force 4 to 5.
Probability of Significant Rain: Medium High
Saturday, Sep 27
Mainly cloudy with a few showers. Sunny intervals during the day.
Max Temp: 32°C
Min Temp: 27°C
Humidity: 70-95%
Wind: East force 4, occasionally force 5.
Probability of Significant Rain: Medium
Additional Information
Sea Temperature (North Point): 28°C (Recorded: Sep 18, 2025, 07:00)
Soil Temperature (Hong Kong Observatory, 0.5m): 30.6°C (Recorded: Sep 18, 2025, 07:00)
Soil Temperature (Hong Kong Observatory, 1m): 30.4°C (Recorded: Sep 18, 2025, 07:00)