HOURLY READINGS


 

AT 10 A.M. AT THE HONG KONG OBSERVATORY THE AIR TEMPERATURE
WAS 26 DEGREES CELSIUS AND THE RELATIVE HUMIDITY 94 PER
CENT.
DURING THE PAST HOUR THE MEAN UV INDEX RECORDED AT KING'S
PARK WAS 0.5. THE INTENSITY OF UV RADIATION WAS LOW.

 

LOCALISED HEAVY RAIN ADVISORY: RAIN IS PARTICULARLY HEAVY
IN TAI PO DISTRICT. IT MAY CAUSE SERIOUS FLOODING.
RESIDENTS WHO ARE LIKELY TO BE AFFECTED ARE ADVISED TO TAKE
NECESSARY PRECAUTIONS TO AVOID POSSIBLE FLOOD DAMAGE. HEAVY
RAIN OF MORE THAN 70 MILLIMETRES OF HOURLY RAINFALL HAS
FALLEN OR IS EXPECTED TO FALL IN THE ABOVE REGIONS.

 

PLEASE BE REMINDED THAT:

 

THE AMBER RAINSTORM WARNING SIGNAL HAS BEEN ISSUED.
THE THUNDERSTORM WARNING HAS BEEN ISSUED. IT WILL REMAIN
EFFECTIVE UNTIL 11:00 A.M. TODAY. A FEW SQUALLY
THUNDERSTORMS ARE EXPECTED TO OCCUR OVER HONG KONG.

 

THE AIR TEMPERATURES AT OTHER PLACES WERE:

 

KING'S PARK                 26 DEGREES;
WONG CHUK HANG              27 DEGREES;
TA KWU LING                 25 DEGREES;
LAU FAU SHAN                26 DEGREES;
TAI PO                      25 DEGREES;
SHA TIN                     26 DEGREES;
TUEN MUN                    25 DEGREES;
TSEUNG KWAN O               27 DEGREES;
SAI KUNG                    27 DEGREES;
CHEUNG CHAU                 25 DEGREES;
CHEK LAP KOK                25 DEGREES;
TSING YI                    26 DEGREES;
SHEK KONG                   // DEGREES;
TSUEN WAN HO KOON           25 DEGREES;
TSUEN WAN SHING MUN VALLEY  26 DEGREES;
HONG KONG PARK              25 DEGREES;
SHAU KEI WAN                26 DEGREES;
KOWLOON CITY                25 DEGREES;
HAPPY VALLEY                // DEGREES;
WONG TAI SIN                26 DEGREES;
STANLEY                     28 DEGREES;
KWUN TONG                   26 DEGREES;
SHAM SHUI PO                26 DEGREES;
KAI TAK RUNWAY PARK         26 DEGREES;
YUEN LONG PARK              26 DEGREES;
TAI MEI TUK                 25 DEGREES.

 

BETWEEN 8:45 AND 9:45 A.M., LIGHTNING WAS DETECTED WITHIN
LANTAU, NEW TERRITORIES WEST, HONG KONG AND KOWLOON. THE
RAINFALL RECORDED IN VARIOUS REGIONS WERE:

 

 
ISLANDS DISTRICT                 0 TO 53 MM;
TAI PO                           1 TO 41 MM;
KWAI TSING                       0 TO 23 MM;
SHA TIN                          0 TO 23 MM;
SAI KUNG                         0 TO 21 MM;
TUEN MUN                         7 TO 20 MM;
SOUTHERN DISTRICT                6 TO 19 MM;
TSUEN WAN                        3 TO 18 MM;
CENTRAL & WESTERN DISTRICT      11 TO 17 MM;
NORTH DISTRICT                   0 TO 17 MM;
WAN CHAI                        10 TO 13 MM;
WONG TAI SIN                     7 TO 11 MM;
KWUN TONG                        8 TO 11 MM;
SHAM SHUI PO                      6 TO 9 MM;
KOWLOON CITY                      7 TO 9 MM;
EASTERN DISTRICT                  2 TO 8 MM;
YAU TSIM MONG                     5 TO 7 MM;
YUEN LONG                         0 TO 5 MM.

DISPATCHED BY HONG KONG OBSERVATORY AT 10:13 HKT ON 21.09.2025