9-DAY WEATHER FORECAST


9-DAY WEATHER FORECAST
 
GENERAL SITUATION:
TROPICAL CYCLONE MITAG WILL MOVE ACROSS THE VICINITY OF THE
NORTHERN PART OF THE PEARL RIVER ESTUARY AND WEAKEN
GRADUALLY TODAY. UNDER THE INFLUENCE OF THE REMNANT OF
MITAG, THERE WILL STILL BE SHOWERS AND SQUALLY
THUNDERSTORMS OVER GUANGDONG TOMORROW. TROPICAL CYCLONE
RAGASA WILL MOVE TOWARDS THE VICINITY OF LUZON STRAIT AND
INTENSIFY SIGNIFICANTLY IN THE NEXT COUPLE OF DAYS, AND
ENTER THE NORTHERN PART OF THE SOUTH CHINA SEA EARLY NEXT
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 NEXT 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 NEXT 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 NEXT WEEK.
 
DATE/MONTH 21/9 (SUNDAY)
WIND: EAST TO SOUTHEAST FORCE 4, OCCASIONALLY FORCE 5.
WEATHER: MAINLY CLOUDY WITH OCCASIONAL SHOWERS AND SQUALLY
THUNDERSTORMS. SHOWERS WILL BE HEAVIER AT TIMES AT FIRST.
TEMP RANGE: 26 - 31 C
R.H. RANGE: 70 - 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 12:00 HKT ON 20.09.2025