Tropical Storm Son-Tinh (1809)

Daily rainfall amounts recorded at the Hong Kong Observatory Headquarters and other stations during the passage of Son-Tinh

First passage [17 – 18 July]
Rainfall (mm) recorded at the Hong Kong Observatory (HKO) - 17-Jul : 6.5 , 18-Jul : 29.6 , Total rainfall (mm) : 36.1 ;
Rainfall (mm) recorded at the Hong Kong International Airport (HKA) - 17-Jul : 17.0 , 18-Jul : 10.2 , Total rainfall (mm) : 27.2 ;
Rainfall (mm) recorded at Cheung Chau (CCH) - 17-Jul : 6.5 , 18-Jul : 11.0 , Total rainfall (mm) : 17.5 ;
Rainfall (mm) recorded at Aberdeen - 17-Jul : 5.5 , 18-Jul : 31.0 , Total rainfall (mm) : 36.5 ;
Rainfall (mm) recorded at Fanling - 17-Jul : 22.5 , 18-Jul : 31.0 , Total rainfall (mm) : 53.5 ;
Rainfall (mm) recorded at High Island - 17-Jul : 3.5 , 18-Jul : 35.5 , Total rainfall (mm) : 39.0 ;
Rainfall (mm) recorded at Jordan Valley - 17-Jul : 4.5 , 18-Jul : 34.0 , Total rainfall (mm) : 38.5 ;
Rainfall (mm) recorded at Kwai Chung - 17-Jul : 24.0 , 18-Jul : 20.0 , Total rainfall (mm) : 44.0 ;
Rainfall (mm) recorded at Mid Levels - 17-Jul : 4.5 , 18-Jul : 41.0 , Total rainfall (mm) : 45.5 ;
Rainfall (mm) recorded at Sha Tin - 17-Jul : 22.0 , 18-Jul : 59.5 , Total rainfall (mm) : 81.5 ;
Rainfall (mm) recorded at Shau Kei Wan - 17-Jul : 6.0 , 18-Jul : 34.5 , Total rainfall (mm) : 40.5 ;
Rainfall (mm) recorded at Shek Kong - 17-Jul : 24.5 , 18-Jul : 32.5 , Total rainfall (mm) : 57.0 ;
Rainfall (mm) recorded at So Uk Estate - 17-Jul : 10.5 , 18-Jul : 24.0 , Total rainfall (mm) : 34.5 ;
Rainfall (mm) recorded at Tai Mei Tuk - 17-Jul : [6.5] , 18-Jul : 29.5 , Total rainfall (mm) : [36.0] ;
Rainfall (mm) recorded at Tap Shek Kok - 17-Jul : 41.0 , 18-Jul : 5.0 , Total rainfall (mm) : 46.0 ;
Rainfall (mm) recorded at Tuen Mun Reservoir - 17-Jul : 18.9 , 18-Jul : 15.2 , Total rainfall (mm) : 34.1 ;

Second passage [23 – 24 July]
Rainfall (mm) recorded at the Hong Kong Observatory (HKO) - 23-Jul : 30.8 , 24-Jul : 0.1 , Total rainfall (mm) : 30.9 ;
Rainfall (mm) recorded at the Hong Kong International Airport (HKA) - 23-Jul : 23.9 , 24-Jul : 7.3 , Total rainfall (mm) : 31.2 ;
Rainfall (mm) recorded at Cheung Chau (CCH) - 23-Jul : 19.5 , 24-Jul : 5.5 , Total rainfall (mm) : 25.0 ;
Rainfall (mm) recorded at Aberdeen - 23-Jul : 28.0 , 24-Jul : 0.0 , Total rainfall (mm) : 28.0 ;
Rainfall (mm) recorded at Fanling - 23-Jul : 14.5 , 24-Jul : 3.0 , Total rainfall (mm) : 17.5 ;
Rainfall (mm) recorded at High Island - 23-Jul : 6.0 , 24-Jul : 0.5 , Total rainfall (mm) : 6.5 ;
Rainfall (mm) recorded at Jordan Valley - 23-Jul : 18.0 , 24-Jul : 1.5 , Total rainfall (mm) : 19.5 ;
Rainfall (mm) recorded at Kwai Chung - 23-Jul : 29.0 , 24-Jul : 1.5 , Total rainfall (mm) : 30.5 ;
Rainfall (mm) recorded at Mid Levels - 23-Jul : 23.0 , 24-Jul : 0.5 , Total rainfall (mm) : 23.5 ;
Rainfall (mm) recorded at Sha Tin - 23-Jul : 13.5 , 24-Jul : 16.0 , Total rainfall (mm) : 29.5 ;
Rainfall (mm) recorded at Shau Kei Wan - 23-Jul : 30.0 , 24-Jul : 0.0 , Total rainfall (mm) : 30.0 ;
Rainfall (mm) recorded at Shek Kong - 23-Jul : 19.0 , 24-Jul : 7.5 , Total rainfall (mm) : 26.5 ;
Rainfall (mm) recorded at So Uk Estate - 23-Jul : 37.0 , 24-Jul : 0.0 , Total rainfall (mm) : 37.0 ;
Rainfall (mm) recorded at Tai Mei Tuk - 23-Jul : 24.0 , 24-Jul : 39.5 , Total rainfall (mm) : 63.5 ;
Rainfall (mm) recorded at Tap Shek Kok - 23-Jul : 18.0 , 24-Jul : 23.0 , Total rainfall (mm) : 41.0 ;
Rainfall (mm) recorded at Tuen Mun Reservoir - 23-Jul : 27.3 , 24-Jul : 16.3 , Total rainfall (mm) : 43.6

Tung Chung - data not available
Note : [ ] based on incomplete hourly data.