9-DAY WEATHER FORECAST


9-DAY WEATHER FORECAST
 
GENERAL SITUATION:
TROPICAL CYCLONE RAGASA WILL EDGE CLOSER TO THE COAST OF
GUANGDONG GRADUALLY TOMORROW. UNDER THE INFLUENCE OF ITS
OUTER SUBSIDING AIR, THE WEATHER WILL REMAIN VERY HOT OVER
SOUTHERN CHINA AT FIRST TOMORROW. HOWEVER, UNDER THE
INFLUENCE OF THE EXTENSIVE CIRCULATION OF RAGASA, THE
WEATHER OVER THE COASTAL AREAS WILL DETERIORATE RAPIDLY
WITH WINDS STRENGTHENING SIGNIFICANTLY LATER TOMORROW.
THERE WILL BE FREQUENT HEAVY SQUALLY SHOWERS, THUNDERSTORMS
AND SIGNIFICANT STORM SURGE ON WEDNESDAY. SEAS WILL BE VERY
HIGH WITH SWELLS. WITH THE DEPARTURE OF RAGASA, SHOWERS
WILL EASE OFF GRADUALLY AND THE WEATHER WILL IMPROVE IN THE
LATTER PART OF THIS WEEK. BESIDES, A BROAD AREA OF LOW
PRESSURE OVER THE WESTERN NORTH PACIFIC WILL DEVELOP
GRADUALLY IN THE NEXT COUPLE OF DAYS, IT WILL MOVE ACROSS
THE PHILIPPINES AND ENTER THE SOUTH CHINA SEA. IT MAY BRING
UNSETTLED WEATHER TO THE CENTRAL AND NORTHERN PARTS OF THE
SOUTH CHINA SEA OVER THE WEEKEND. HOWEVER, THERE ARE STILL
UNCERTAINTIES IN ITS DEVELOPMENT AND MOVEMENT.
 
DATE/MONTH 23/9 (TUESDAY)
WIND: NORTH FORCE 5 TO 6, FORCE 7 TO 8 LATER, UP TO FORCE 9
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 - 33 C
R.H. RANGE: 60 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM HIGH
 
DATE/MONTH 24/9 (WEDNESDAY)
WIND: EAST TO NORTHEAST FORCE 9 TO 10. IT MAY REACH FORCE
12 OFFSHORE AND ON HIGH GROUND. BECOMING SOUTHEAST. FORCE 7
TO 8 LATER.
WEATHER: OVERCAST WITH FREQUENT HEAVY SQUALLY SHOWERS,
THUNDERSTORMS AND SIGNIFICANT STORM SURGE. SEAS WILL BE
VERY 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 4, OCCASIONALLY FORCE 5.
WEATHER: MAINLY CLOUDY WITH A FEW SHOWERS. SUNNY INTERVALS
DURING THE DAY.
TEMP RANGE: 26 - 31 C
R.H. RANGE: 70 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM LOW
 
DATE/MONTH 27/9 (SATURDAY)
WIND: EAST TO NORTHEAST FORCE 4 TO 5.
WEATHER: SUNNY PERIODS AND ONE OR TWO SHOWERS.
TEMP RANGE: 27 - 32 C
R.H. RANGE: 65 - 90 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: LOW
 
DATE/MONTH 28/9 (SUNDAY)
WIND: EAST FORCE 4 TO 5.
WEATHER: MAINLY CLOUDY WITH A FEW SHOWERS AND THUNDERSTORMS.
TEMP RANGE: 27 - 31 C
R.H. RANGE: 75 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM
 
DATE/MONTH 29/9 (MONDAY)
WIND: EAST TO SOUTHEAST FORCE 4, OCCASIONALLY FORCE 5.
WEATHER: MAINLY CLOUDY WITH A FEW SHOWERS.
TEMP RANGE: 27 - 31 C
R.H. RANGE: 75 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM LOW
 
DATE/MONTH 30/9 (TUESDAY)
WIND: EAST TO SOUTHEAST FORCE 4.
WEATHER: MAINLY CLOUDY WITH ONE OR TWO SHOWERS. SUNNY
INTERVALS DURING THE DAY.
TEMP RANGE: 27 - 32 C
R.H. RANGE: 70 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: LOW
 
DATE/MONTH 1/10 (WEDNESDAY)
WIND: EAST TO SOUTHEAST FORCE 3.
WEATHER: SUNNY INTERVALS AND A FEW SHOWERS.
TEMP RANGE: 27 - 32 C
R.H. RANGE: 75 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: LOW

DISPATCHED BY HONG KONG OBSERVATORY AT 11:38 HKT ON 22.09.2025