PRESS WEATHER NO. 129 - 9-DAY WEATHER FORECAST
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9-DAY WEATHER FORECAST
9-DAY WEATHER FORECAST
GENERAL SITUATION:
AN ANTICYCLONE ALOFT WILL BRING VERY HOT WEATHER TO
SOUTHEASTERN CHINA TOMORROW. THE TROPICAL CYCLONE OVER
LUZON WILL MOVE NORTHWESTWARDS, ACROSS THE NORTHEASTERN
PART OF THE SOUTH CHINA SEA AND INTENSIFY GRADUALLY, IT
WILL MOVE IN THE GENERAL DIRECTION OF THE COAST OF EASTERN
GUANGDONG IN THE NEXT COUPLE OF DAYS. UNDER THE INFLUENCE
OF THE NORTHEAST MONSOON, THE TROPICAL CYCLONE WILL THEN
TURN WESTWARDS, EDGE CLOSER TO THE VICINITY OF THE PEARL
RIVER ESTUARY. HOWEVER, THERE ARE UNCERTAINTIES IN ITS
INTENSITY AND THE LOCATION OF MAKING LANDFALL. THE WEATHER
WILL BECOME UNSETTLED OVER THE REGION ON FRIDAY AND OVER
THE WEEKEND. IT WILL BE WINDY WITH SQUALLY SHOWERS AND
THUNDERSTORMS. WITH THE TROPICAL CYCLONE DEPARTING, THE
WEATHER OVER GUANGDONG WILL IMPROVE BRIEFLY EARLY NEXT
WEEK. BESIDES, ANOTHER TROPICAL CYCLONE IS EXPECTED TO FORM
OVER THE WESTERN NORTH PACIFIC TO THE EAST OF THE
PHILIPPINES. IT WILL INTENSIFY SIGNIFICANTLY, AND ENTER THE
NORTHERN PART OF THE SOUTH CHINA SEA, EDGE CLOSER TO THE
COAST OF SOUTHERN CHINA EARLY NEXT WEEK. 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 AND THUNDERSTORMS. SEAS WILL BE ROUGH WITH
SWELLS.
DATE/MONTH 18/9 (THURSDAY)
WIND: EAST TO NORTHEAST FORCE 3 TO 4.
WEATHER: SUNNY PERIODS AND ONE OR TWO SHOWERS. VERY HOT
DURING THE DAY. ISOLATED THUNDERSTORMS LATER.
TEMP RANGE: 28 - 33 C
R.H. RANGE: 60 - 90 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM LOW
DATE/MONTH 19/9 (FRIDAY)
WIND: NORTH TO NORTHWEST FORCE 4, FORCE 5 LATER,
OCCASIONALLY FORCE 6 OFFSHORE AND ON HIGH GROUND.
WEATHER: MAINLY CLOUDY WITH A FEW SHOWERS AND
THUNDERSTORMS. SUNNY INTERVALS AT FIRST. SHOWERS WILL
INCREASE GRADUALLY.
TEMP RANGE: 27 - 32 C
R.H. RANGE: 65 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM HIGH
DATE/MONTH 20/9 (SATURDAY)
WIND: WEST TO SOUTHWEST FORCE 5, OCCASIONALLY FORCE 6.
WEATHER: MAINLY CLOUDY WITH OCCASIONAL SQUALLY SHOWERS AND
THUNDERSTORMS. SHOWERS WILL BE HEAVIER AT TIMES. THERE WILL
BE SWELLS.
TEMP RANGE: 26 - 31 C
R.H. RANGE: 70 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: HIGH
DATE/MONTH 21/9 (SUNDAY)
WIND: SOUTH TO SOUTHEAST FORCE 4 TO 5, OCCASIONALLY FORCE 6
OFFSHORE AND ON HIGH GROUND AT FIRST.
WEATHER: MAINLY CLOUDY WITH OCCASIONAL SHOWERS AND SQUALLY
THUNDERSTORMS. SHOWERS WILL BE HEAVIER AT TIMES AT FIRST.
THERE WILL BE SWELLS.
TEMP RANGE: 26 - 31 C
R.H. RANGE: 70 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM HIGH
DATE/MONTH 22/9 (MONDAY)
WIND: EAST TO NORTHEAST FORCE 3 TO 4.
WEATHER: SUNNY PERIODS AND A FEW SHOWERS. VERY HOT DURING
THE DAY.
TEMP RANGE: 27 - 34 C
R.H. RANGE: 60 - 90 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM LOW
DATE/MONTH 23/9 (TUESDAY)
WIND: NORTH FORCE 4 TO 5, OCCASIONALLY FORCE 6 OFFSHORE AND
ON HIGH GROUND LATER.
WEATHER: SUNNY PERIODS AND ONE OR TWO SHOWERS. VERY HOT
DURING THE DAY. MORE SHOWERS WITH SQUALLY THUNDERSTORMS
LATER. THERE WILL BE SWELLS.
TEMP RANGE: 27 - 33 C
R.H. RANGE: 65 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM
DATE/MONTH 24/9 (WEDNESDAY)
WIND: EAST TO NORTHEAST FORCE 6, UP TO FORCE 8 OFFSHORE AND
ON HIGH GROUND.
WEATHER: CLOUDY TO OVERCAST WITH SQUALLY SHOWERS AND
THUNDERSTORMS. SHOWERS WILL BE HEAVY AT TIMES. SEAS WILL BE
ROUGH WITH SWELLS.
TEMP RANGE: 26 - 30 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 HEAVIER AT FIRST. SEAS WILL BE ROUGH WITH
SWELLS.
TEMP RANGE: 26 - 31 C
R.H. RANGE: 75 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: HIGH
DATE/MONTH 26/9 (FRIDAY)
WIND: EAST FORCE 4 TO 5.
WEATHER: MAINLY CLOUDY WITH OCCASIONAL SHOWERS AND A FEW
THUNDERSTORMS.
TEMP RANGE: 26 - 31 C
R.H. RANGE: 75 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM HIGH
DISPATCHED BY HONG KONG OBSERVATORY AT 11:39 HKT ON 17.09.2025
9-DAY WEATHER FORECAST
GENERAL SITUATION:
AN ANTICYCLONE ALOFT WILL BRING VERY HOT WEATHER TO
SOUTHEASTERN CHINA TOMORROW. THE TROPICAL CYCLONE OVER
LUZON WILL MOVE NORTHWESTWARDS, ACROSS THE NORTHEASTERN
PART OF THE SOUTH CHINA SEA AND INTENSIFY GRADUALLY, IT
WILL MOVE IN THE GENERAL DIRECTION OF THE COAST OF EASTERN
GUANGDONG IN THE NEXT COUPLE OF DAYS. UNDER THE INFLUENCE
OF THE NORTHEAST MONSOON, THE TROPICAL CYCLONE WILL THEN
TURN WESTWARDS, EDGE CLOSER TO THE VICINITY OF THE PEARL
RIVER ESTUARY. HOWEVER, THERE ARE UNCERTAINTIES IN ITS
INTENSITY AND THE LOCATION OF MAKING LANDFALL. THE WEATHER
WILL BECOME UNSETTLED OVER THE REGION ON FRIDAY AND OVER
THE WEEKEND. IT WILL BE WINDY WITH SQUALLY SHOWERS AND
THUNDERSTORMS. WITH THE TROPICAL CYCLONE DEPARTING, THE
WEATHER OVER GUANGDONG WILL IMPROVE BRIEFLY EARLY NEXT
WEEK. BESIDES, ANOTHER TROPICAL CYCLONE IS EXPECTED TO FORM
OVER THE WESTERN NORTH PACIFIC TO THE EAST OF THE
PHILIPPINES. IT WILL INTENSIFY SIGNIFICANTLY, AND ENTER THE
NORTHERN PART OF THE SOUTH CHINA SEA, EDGE CLOSER TO THE
COAST OF SOUTHERN CHINA EARLY NEXT WEEK. 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 AND THUNDERSTORMS. SEAS WILL BE ROUGH WITH
SWELLS.
DATE/MONTH 18/9 (THURSDAY)
WIND: EAST TO NORTHEAST FORCE 3 TO 4.
WEATHER: SUNNY PERIODS AND ONE OR TWO SHOWERS. VERY HOT
DURING THE DAY. ISOLATED THUNDERSTORMS LATER.
TEMP RANGE: 28 - 33 C
R.H. RANGE: 60 - 90 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM LOW
DATE/MONTH 19/9 (FRIDAY)
WIND: NORTH TO NORTHWEST FORCE 4, FORCE 5 LATER,
OCCASIONALLY FORCE 6 OFFSHORE AND ON HIGH GROUND.
WEATHER: MAINLY CLOUDY WITH A FEW SHOWERS AND
THUNDERSTORMS. SUNNY INTERVALS AT FIRST. SHOWERS WILL
INCREASE GRADUALLY.
TEMP RANGE: 27 - 32 C
R.H. RANGE: 65 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM HIGH
DATE/MONTH 20/9 (SATURDAY)
WIND: WEST TO SOUTHWEST FORCE 5, OCCASIONALLY FORCE 6.
WEATHER: MAINLY CLOUDY WITH OCCASIONAL SQUALLY SHOWERS AND
THUNDERSTORMS. SHOWERS WILL BE HEAVIER AT TIMES. THERE WILL
BE SWELLS.
TEMP RANGE: 26 - 31 C
R.H. RANGE: 70 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: HIGH
DATE/MONTH 21/9 (SUNDAY)
WIND: SOUTH TO SOUTHEAST FORCE 4 TO 5, OCCASIONALLY FORCE 6
OFFSHORE AND ON HIGH GROUND AT FIRST.
WEATHER: MAINLY CLOUDY WITH OCCASIONAL SHOWERS AND SQUALLY
THUNDERSTORMS. SHOWERS WILL BE HEAVIER AT TIMES AT FIRST.
THERE WILL BE SWELLS.
TEMP RANGE: 26 - 31 C
R.H. RANGE: 70 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM HIGH
DATE/MONTH 22/9 (MONDAY)
WIND: EAST TO NORTHEAST FORCE 3 TO 4.
WEATHER: SUNNY PERIODS AND A FEW SHOWERS. VERY HOT DURING
THE DAY.
TEMP RANGE: 27 - 34 C
R.H. RANGE: 60 - 90 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM LOW
DATE/MONTH 23/9 (TUESDAY)
WIND: NORTH FORCE 4 TO 5, OCCASIONALLY FORCE 6 OFFSHORE AND
ON HIGH GROUND LATER.
WEATHER: SUNNY PERIODS AND ONE OR TWO SHOWERS. VERY HOT
DURING THE DAY. MORE SHOWERS WITH SQUALLY THUNDERSTORMS
LATER. THERE WILL BE SWELLS.
TEMP RANGE: 27 - 33 C
R.H. RANGE: 65 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM
DATE/MONTH 24/9 (WEDNESDAY)
WIND: EAST TO NORTHEAST FORCE 6, UP TO FORCE 8 OFFSHORE AND
ON HIGH GROUND.
WEATHER: CLOUDY TO OVERCAST WITH SQUALLY SHOWERS AND
THUNDERSTORMS. SHOWERS WILL BE HEAVY AT TIMES. SEAS WILL BE
ROUGH WITH SWELLS.
TEMP RANGE: 26 - 30 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 HEAVIER AT FIRST. SEAS WILL BE ROUGH WITH
SWELLS.
TEMP RANGE: 26 - 31 C
R.H. RANGE: 75 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: HIGH
DATE/MONTH 26/9 (FRIDAY)
WIND: EAST FORCE 4 TO 5.
WEATHER: MAINLY CLOUDY WITH OCCASIONAL SHOWERS AND A FEW
THUNDERSTORMS.
TEMP RANGE: 26 - 31 C
R.H. RANGE: 75 - 95 PER CENT
PROBABILITY OF SIGNIFICANT RAIN FORECAST: MEDIUM HIGH
DISPATCHED BY HONG KONG OBSERVATORY AT 11:39 HKT ON 17.09.2025