HOURLY READINGS


 

AT 11 A.M. AT THE HONG KONG OBSERVATORY THE AIR TEMPERATURE
WAS 27 DEGREES CELSIUS AND THE RELATIVE HUMIDITY 92 PER
CENT.
DURING THE PAST HOUR THE MEAN UV INDEX RECORDED AT KING'S
PARK WAS 0.2. THE INTENSITY OF UV RADIATION WAS LOW.

 

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 THUNDERSTORM WARNING HAS BEEN ISSUED. IT WILL REMAIN
EFFECTIVE UNTIL 2:00 P.M. TODAY. A FEW SQUALLY
THUNDERSTORMS ARE EXPECTED TO OCCUR OVER HONG KONG.

 

THE AIR TEMPERATURES AT OTHER PLACES WERE:

 

KING'S PARK                 27 DEGREES;
WONG CHUK HANG              27 DEGREES;
TA KWU LING                 26 DEGREES;
LAU FAU SHAN                26 DEGREES;
TAI PO                      26 DEGREES;
SHA TIN                     26 DEGREES;
TUEN MUN                    26 DEGREES;
TSEUNG KWAN O               27 DEGREES;
SAI KUNG                    27 DEGREES;
CHEUNG CHAU                 27 DEGREES;
CHEK LAP KOK                29 DEGREES;
TSING YI                    27 DEGREES;
SHEK KONG                   27 DEGREES;
TSUEN WAN HO KOON           26 DEGREES;
TSUEN WAN SHING MUN VALLEY  27 DEGREES;
HONG KONG PARK              27 DEGREES;
SHAU KEI WAN                27 DEGREES;
KOWLOON CITY                27 DEGREES;
HAPPY VALLEY                28 DEGREES;
WONG TAI SIN                27 DEGREES;
STANLEY                     27 DEGREES;
KWUN TONG                   27 DEGREES;
SHAM SHUI PO                27 DEGREES;
KAI TAK RUNWAY PARK         28 DEGREES;
YUEN LONG PARK              26 DEGREES;
TAI MEI TUK                 26 DEGREES.

 

BETWEEN 9:45 AND 10:45 A.M., LIGHTNING WAS DETECTED WITHIN 
NEW TERRITORIES WEST AND LANTAU. THE RAINFALL RECORDED IN
VARIOUS REGIONS WERE:

 

 
YUEN LONG                        0 TO 10 MM;
NORTH DISTRICT                    2 TO 9 MM;
TUEN MUN                          1 TO 6 MM;
TAI PO                            1 TO 5 MM;
ISLANDS DISTRICT                  0 TO 3 MM;
KWAI TSING                        1 TO 2 MM;
SAI KUNG                          0 TO 2 MM;
SHA TIN                           0 TO 2 MM;
TSUEN WAN                         1 TO 2 MM;
CENTRAL & WESTERN DISTRICT        0 TO 1 MM;
YAU TSIM MONG                     0 TO 1 MM;
SHAM SHUI PO                           1 MM;
KOWLOON CITY                      0 TO 1 MM;
WONG TAI SIN                           1 MM.

DISPATCHED BY HONG KONG OBSERVATORY AT 11:31 HKT ON 21.05.2026