General Situation
Tropical Cyclone Mitag will move across the vicinity of the Pearl River Estuary and weaken gradually tomorrow. It will be windy at first over the region. There will be squally showers and thunderstorms. With Mitag weakening and departing, showers will ease off gradually early next week. The weather will improve briefly and will be very hot. Tropical Cyclone Ragasa will 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 significant storm surge. Seas will be very rough with swells.
Saturday, Sep 20
Mainly cloudy with occasional squally showers and thunderstorms. Showers will be heavy at times at first. Seas will be rough with swells.
Max Temp: 30°C
Min Temp: 26°C
Humidity: 75-95%
Wind: West to southwest force 5 to 6, up to force 7 offshore and on high ground. Becoming south force 4 later.
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: East to southeast force 4, occasionally force 5.
Probability of Significant Rain: Medium High
Monday, Sep 22
One or two showers at first. Becoming fine and 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 to 5, force 6 offshore and up to force 7 on high ground later.
Probability of Significant Rain: Medium High
Wednesday, Sep 24
Cloudy to overcast with heavy squally showers and thunderstorms. Seas will be very rough with swells.
Max Temp: 29°C
Min Temp: 25°C
Humidity: 80-95%
Wind: Northeast force 7 to 8, up to force 10 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 heavy at first. Seas will be very rough with swells.
Max Temp: 29°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: 30°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: 31°C
Min Temp: 27°C
Humidity: 70-95%
Wind: East force 4, occasionally force 5.
Probability of Significant Rain: Medium
Sunday, Sep 28
Sunny periods and a few showers.
Max Temp: 32°C
Min Temp: 27°C
Humidity: 70-95%
Wind: East force 3 to 4.
Probability of Significant Rain: Medium Low
Additional Information
Sea Temperature (North Point): 27°C (Recorded: Sep 19, 2025, 07:00)
Soil Temperature (Hong Kong Observatory, 0.5m): 30.6°C (Recorded: Sep 19, 2025, 07:00)
Soil Temperature (Hong Kong Observatory, 1m): 30.4°C (Recorded: Sep 19, 2025, 07:00)