HOURLY READINGS


 

AT 6 A.M. AT THE HONG KONG OBSERVATORY THE AIR TEMPERATURE
WAS 26 DEGREES CELSIUS AND THE RELATIVE HUMIDITY 97 PER
CENT.

 

SPECIAL LANDSLIP ADVISORY: RAIN HAS BEEN PARTICULARLY HEAVY
IN NORTH NEW TERRITORIES; AND MAY CAUSE LANDSLIDES. PAY
SPECIAL ATTENTION TO LANDSLIDE RISK AND STAY AWAY FROM
SLOPES. IF LANDSLIDE OCCURS NEARBY, LEAVE IMMEDIATELY AND
CALL THE POLICE UNDER SAFE CONDITIONS.

 

PLEASE BE REMINDED THAT:

 

THE AMBER RAINSTORM WARNING SIGNAL HAS BEEN ISSUED.
THE THUNDERSTORM WARNING HAS BEEN ISSUED. IT WILL REMAIN
EFFECTIVE UNTIL 8:30 A.M. TODAY. A FEW SQUALLY
THUNDERSTORMS ARE EXPECTED TO OCCUR OVER HONG KONG.
THE SPECIAL ANNOUNCEMENT OF FLOODING IN NORTHERN NEW
TERRITORIES HAS BEEN ISSUED.

 

THE AIR TEMPERATURES AT OTHER PLACES WERE:

 

KING'S PARK                 25 DEGREES;
WONG CHUK HANG              26 DEGREES;
TA KWU LING                 25 DEGREES;
LAU FAU SHAN                24 DEGREES;
TAI PO                      25 DEGREES;
SHA TIN                     25 DEGREES;
TUEN MUN                    25 DEGREES;
TSEUNG KWAN O               25 DEGREES;
SAI KUNG                    25 DEGREES;
CHEUNG CHAU                 25 DEGREES;
CHEK LAP KOK                26 DEGREES;
TSING YI                    25 DEGREES;
SHEK KONG                   25 DEGREES;
TSUEN WAN HO KOON           24 DEGREES;
TSUEN WAN SHING MUN VALLEY  25 DEGREES;
HONG KONG PARK              25 DEGREES;
SHAU KEI WAN                25 DEGREES;
KOWLOON CITY                25 DEGREES;
HAPPY VALLEY                26 DEGREES;
WONG TAI SIN                25 DEGREES;
STANLEY                     26 DEGREES;
KWUN TONG                   25 DEGREES;
SHAM SHUI PO                25 DEGREES;
KAI TAK RUNWAY PARK         26 DEGREES;
YUEN LONG PARK              25 DEGREES;
TAI MEI TUK                 25 DEGREES.

 

BETWEEN 4:45 AND 5:45 A.M., LIGHTNING WAS DETECTED OVER ALL
REGIONS. THE RAINFALL RECORDED IN VARIOUS REGIONS WERE:

 

 
ISLANDS DISTRICT                 0 TO 38 MM;
SAI KUNG                         2 TO 28 MM;
TSUEN WAN                        4 TO 27 MM;
KWAI TSING                       9 TO 26 MM;
KWUN TONG                       11 TO 16 MM;
SHAM SHUI PO                     9 TO 14 MM;
EASTERN DISTRICT                 3 TO 12 MM;
KOWLOON CITY                     8 TO 11 MM;
WONG TAI SIN                     8 TO 11 MM;
SHA TIN                           1 TO 9 MM;
YAU TSIM MONG                     6 TO 9 MM;
CENTRAL & WESTERN DISTRICT        4 TO 8 MM;
SOUTHERN DISTRICT                 0 TO 6 MM;
TUEN MUN                          0 TO 6 MM;
WAN CHAI                          4 TO 6 MM;
TAI PO                            0 TO 4 MM;
YUEN LONG                         0 TO 2 MM.

DISPATCHED BY HONG KONG OBSERVATORY AT 06:02 HKT ON 21.05.2026