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PRESS WEATHER NO. 006 - HKO READINGS & RADIATION LEVEL
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HKO READINGS & RADIATION LEVEL

YESTERDAY'S WEATHER AND RADIATION LEVEL:
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HONG KONG OBSERVATORY
MAXIMUM AIR TEMPERATURE 22.8 C
MINIMUM AIR TEMPERATURE 16.8 C
GRASS MINIMUM TEMPERATURE 13.6 C
RELATIVE HUMIDITY 57 - 84 PERCENT
RAINFALL 0 MM
TOTAL RAINFALL SINCE 1ST JANUARY 10.8 MM
AGAINST AN AVERAGE OF 51.3 MM
 
OTHER STATIONS MIN MAX
KING'S PARK 15.6 C 22.5 C
WONG CHUK HANG 17.0 C 24.2 C
TA KWU LING 14.3 C 24.2 C
LAU FAU SHAN 14.2 C 23.8 C
TAI PO 15.1 C 22.7 C
SHA TIN 14.9 C 23.2 C
TUEN MUN 14.8 C 24.3 C
TSEUNG KWAN O 14.8 C 22.5 C
SAI KUNG 14.9 C 21.3 C
CHEUNG CHAU 16.2 C 24.5 C
CHEK LAP KOK 17.1 C 24.6 C
TSING YI 14.9 C 24.9 C
SHEK KONG 13.4 C 25.0 C
TSUEN WAN HO KOON 14.2 C 24.3 C
TSUEN WAN SHING MUN VALLEY 15.8 C 24.6 C
HONG KONG PARK 15.5 C 22.0 C
SHAU KEI WAN 15.8 C 21.4 C
KOWLOON CITY 15.2 C 25.0 C
HAPPY VALLEY 15.5 C 24.0 C
WONG TAI SIN 15.7 C 24.5 C
STANLEY 16.4 C 22.3 C
KWUN TONG 15.3 C 22.3 C
SHAM SHUI PO 15.4 C 24.7 C
KAI TAK RUNWAY PARK 16.6 C 22.9 C
YUEN LONG PARK 12.5 C 25.6 C
TAI MEI TUK 15.4 C 24.6 C
 
DURATION OF SUNSHINE (KING'S PARK): 8.9 H
 
THE MEAN UV INDEX RECORDED AT KING'S PARK YESTERDAY WAS 3,
THE UV INTENSITY WAS MODERATE.
THE MAXIMUM UV INDEX FOR YESTERDAY WAS 6.
SEA SURFACE TEMPERATURE (WAGLAN ISLAND): 18.4 C
 
YESTERDAY'S (13 FEB 2024) AVERAGE AMBIENT GAMMA RADIATION
DOSE RATE TAKEN OUTDOORS IN HONG KONG RANGED FROM 0.09 TO
0.15 MICROSIEVERT PER HOUR. THESE ARE WITHIN THE NORMAL
RANGE OF FLUCTUATION OF THE BACKGROUND RADIATION LEVEL IN
HONG KONG (SEE NOTE). THE AVERAGE DOSE RATES MEASURED AT
THE RADIATION MONITORING STATIONS OVER VARIOUS PARTS OF THE
TERRITORY WERE AS FOLLOWS :
 
STATION YESTERDAY'S AVERAGE
(MICROSIEVERT/HOUR)
PING CHAU 0.10
TAP MUN 0.09
KAT O 0.10
YUEN NG FAN 0.12
TAI MEI TUK 0.11
SHA TAU KOK 0.10
KWUN TONG 0.13
SAI WAN HO 0.09
KING'S PARK 0.15
TSIM BEI TSUI 0.13
CAPE D'AGUILAR 0.13
CHEK LAP KOK 0.14

 
NOTE
1. FROM READINGS TAKEN AT VARIOUS LOCATIONS IN HONG KONG IN THE
PAST, THE HOURLY MEAN AMBIENT GAMMA RADIATION DOSE RATE MAY
VARY BETWEEN 0.06 AND 0.3 MICROSIEVERT PER HOUR.
(1 MICROSIEVERT = 0.000001 SIEVERT = 0.001 MILLISIEVERT)
 
2. TEMPORAL VARIATIONS ARE GENERALLY CAUSED BY CHANGES IN
METEOROLOGICAL CONDITIONS SUCH AS RAINFALL, WIND AND
BAROMETRIC PRESSURE.
 
3. SPATIAL VARIATIONS ARE GENERALLY CAUSED BY DIFFERENCES IN
THE RADIOACTIVE CONTENT OF LOCAL ROCK AND SOIL.
 
4. THE DATA DISPLAYED IS PROVISIONAL. ONLY LIMITED DATA
VALIDATION HAS BEEN CARRIED OUT.
 
5. THE RANGE OF RELATIVE HUMIDITY IN THE DAILY WEATHER SUMMARY
ORIGINATES FROM THE OBSERVER'S REPORTS OF HOURLY READINGS
OF THE DAY. THIS FOLLOWS THE LONG-TERM PRACTICE OF COLLECTING
CLIMATOLOGICAL DATA OF THE HONG KONG OBSERVATORY FOR OVER A
CENTURY. IT MAY DIFFER FROM THE RELATIVE HUMIDITY RANGE
DERIVED FROM THE 1-MINUTE REPORTS OF THE AUTOMATIC WEATHER
STATION.


DISPATCHED BY HONG KONG OBSERVATORY AT 00:18 HKT ON 14.02.2024

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