9-DAY WEATHER FORECAST


9-DAY WEATHER FORECAST
 
GENERAL SITUATION:
UNDER THE INFLUENCE OF THE REMNANT OF MITAG, THERE WILL
STILL BE SHOWERS AND SQUALLY THUNDERSTORMS OVER GUANGDONG
TODAY. TROPICAL CYCLONE RAGASA WILL MOVE TOWARDS THE
VICINITY OF LUZON STRAIT AND CONTINUE TO INTENSIFY TODAY
AND TOMORROW. IT WILL ENTER THE NORTHERN PART OF THE SOUTH
CHINA SEA EARLY THIS WEEK. UNDER THE INFLUENCE OF ITS OUTER
SUBSIDING AIR, THE WEATHER WILL BE VERY HOT OVER THE COAST
OF GUANGDONG ON MONDAY TO EARLY TUESDAY. RAGASA IS EXPECTED
TO EDGE CLOSER TO THE COAST OF GUANGDONG GRADUALLY ON
TUESDAY. UNDER THE INFLUENCE OF ITS BROAD CIRCULATION, THE
WEATHER OVER THE REGION WILL DETERIORATE WITH WINDS
STRENGTHENING SIGNIFICANTLY MIDWEEK THIS WEEK. THERE WILL
BE HEAVY SQUALLY SHOWERS, THUNDERSTORMS AND SIGNIFICANT
STORM SURGE. SEAS WILL BE HIGH WITH SWELLS. WITH THE
DEPARTURE OF RAGASA, SHOWERS WILL EASE OFF GRADUALLY IN THE
LATTER PART OF THIS WEEK. BESIDES, A BROAD TROUGH OF LOW
PRESSURE WILL BRING UNSETTLED WEATHER TO THE CENTRAL AND
NORTHERN PARTS OF THE SOUTH CHINA SEA TO THE EASTERN PART
OF THE PHILIPPINES IN THE LATTER PART OF THIS WEEK.
 
DATE/MONTH 21/9 (SUNDAY)
WIND: EAST TO SOUTHEAST FORCE 3 TO 4, OCCASIONALLY FORCE 5
OFFSHORE LATER.
WEATHER: MAINLY CLOUDY WITH OCCASIONAL SHOWERS AND SQUALLY
THUNDERSTORMS. SHOWERS WILL BE HEAVY AT FIRST.
TEMP RANGE: 25 - 29 C
R.H. RANGE: 75 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: HIGH
 
DATE/MONTH 22/9 (MONDAY)
WIND: EAST FORCE 4, BECOMING NORTH.
WEATHER: CLOUDY PERIODS AT FIRST. BECOMING FINE AND VERY
HOT DURING THE DAY.
TEMP RANGE: 27 - 34 C
R.H. RANGE: 55 - 90 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: LOW
 
DATE/MONTH 23/9 (TUESDAY)
WIND: NORTH FORCE 4 TO 5, FORCE 6 TO 7 LATER, UP TO FORCE 8
OFFSHORE AND ON HIGH GROUND.
WEATHER: BECOMING CLOUDY. VERY HOT WITH SUNNY INTERVALS IN
THE MORNING. SQUALLY SHOWERS AND THUNDERSTORMS LATER. SEAS
WILL BE VERY ROUGH WITH SWELLS.
TEMP RANGE: 27 - 34 C
R.H. RANGE: 55 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM HIGH
 
DATE/MONTH 24/9 (WEDNESDAY)
WIND: EAST TO NORTHEAST FORCE 8 TO 9, UP TO FORCE 11
OFFSHORE AND ON HIGH GROUND. BECOMING SOUTHEAST LATER.
WEATHER: CLOUDY TO OVERCAST WITH HEAVY SQUALLY SHOWERS AND
THUNDERSTORMS. SEAS WILL BE HIGH WITH SWELLS.
TEMP RANGE: 25 - 28 C
R.H. RANGE: 80 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: HIGH
 
DATE/MONTH 25/9 (THURSDAY)
WIND: EAST TO SOUTHEAST FORCE 5 TO 6, FORCE 7 OFFSHORE AND
ON HIGH GROUND AT FIRST.
WEATHER: CLOUDY WITH SQUALLY SHOWERS AND THUNDERSTORMS.
SHOWERS WILL BE HEAVY AT FIRST. SEAS WILL BE VERY ROUGH
WITH SWELLS.
TEMP RANGE: 25 - 29 C
R.H. RANGE: 80 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: HIGH
 
DATE/MONTH 26/9 (FRIDAY)
WIND: EAST FORCE 3 TO 4.
WEATHER: MAINLY CLOUDY WITH OCCASIONAL SHOWERS AND A FEW
THUNDERSTORMS.
TEMP RANGE: 26 - 30 C
R.H. RANGE: 75 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM HIGH
 
DATE/MONTH 27/9 (SATURDAY)
WIND: EAST TO NORTHEAST FORCE 4, OCCASIONALLY FORCE 5.
WEATHER: MAINLY CLOUDY WITH A FEW SHOWERS. SUNNY INTERVALS
DURING THE DAY.
TEMP RANGE: 27 - 32 C
R.H. RANGE: 65 - 90 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM LOW
 
DATE/MONTH 28/9 (SUNDAY)
WIND: EAST FORCE 4 TO 5.
WEATHER: MAINLY CLOUDY WITH A FEW SHOWERS. SUNNY INTERVALS
DURING THE DAY.
TEMP RANGE: 27 - 32 C
R.H. RANGE: 65 - 90 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM LOW
 
DATE/MONTH 29/9 (MONDAY)
WIND: EAST TO SOUTHEAST FORCE 4.
WEATHER: MAINLY CLOUDY WITH A FEW SHOWERS AND THUNDERSTORMS.
TEMP RANGE: 27 - 31 C
R.H. RANGE: 70 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM

DISPATCHED BY HONG KONG OBSERVATORY AT 09:16 HKT ON 21.09.2025