EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, AUGUST 2004
EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
AUGUST 2004
| Date AUGUST |
Mean Pressure (hPa) |
Air Temperature | Mean Dew Point Temperature (deg. C) |
Mean Relative Humidity (%) |
Mean Amount of Cloud (%) |
Total Rainfall (mm) | ||
|---|---|---|---|---|---|---|---|---|
| Maximum (deg. C) |
Mean (deg. C) |
Minimum (deg. C) | ||||||
| 1 | 1007.2 | 31.9 | 28.9 | 26.6 | 24.0 | 76 | 22 | - |
| 2 | 1005.8 | 32.0 | 29.3 | 27.3 | 24.7 | 76 | 33 | - |
| 3 | 1004.4 | 31.9 | 29.7 | 28.0 | 24.4 | 74 | 42 | - |
| 4 | 1003.0 | 31.8 | 29.1 | 25.6 | 24.9 | 78 | 68 | 23.0 |
| 5 | 1004.0 | 29.1 | 27.3 | 25.3 | 25.1 | 88 | 84 | 14.0 |
| 6 | 1006.8 | 27.4 | 26.3 | 24.7 | 24.9 | 92 | 81 | 83.9 |
| 7 | 1007.2 | 30.6 | 28.5 | 26.7 | 24.5 | 79 | 44 | - |
| 8 | 1006.1 | 31.7 | 29.3 | 27.2 | 24.2 | 74 | 38 | - |
| 9 | 1005.5 | 32.9 | 30.1 | 28.0 | 25.3 | 76 | 39 | - |
| 10 | 1003.4 | 33.9 | 31.1 | 28.9 | 25.2 | 72 | 18 | - |
| 11 | 1002.3 | 31.1 | 28.2 | 25.2 | 24.5 | 81 | 79 | 36.4 |
| 12 | 1001.3 | 29.9 | 27.7 | 25.9 | 23.9 | 80 | 79 | 2.7 |
| 13 | 1001.1 | 32.0 | 29.1 | 27.0 | 24.4 | 76 | 64 | - |
| 14 | 1002.7 | 32.1 | 28.9 | 25.9 | 25.0 | 80 | 82 | 18.3 |
| 15 | 1004.5 | 30.3 | 28.9 | 27.8 | 25.4 | 81 | 81 | Trace |
| 16 | 1005.1 | 31.9 | 29.2 | 27.1 | 24.2 | 75 | 41 | - |
| 17 | 1004.2 | 33.4 | 30.4 | 27.5 | 25.0 | 73 | 16 | - |
| 18 | 1004.0 | 32.7 | 30.6 | 29.3 | 26.1 | 77 | 53 | Trace |
| 19 | 1005.1 | 32.4 | 29.9 | 28.8 | 26.0 | 80 | 64 | - |
| 20 | 1006.4 | 30.1 | 27.7 | 25.7 | 25.0 | 85 | 87 | 10.3 |
| 21 | 1007.3 | 27.3 | 26.1 | 25.3 | 25.1 | 95 | 90 | 64.3 |
| 22 | 1007.5 | 27.4 | 26.4 | 25.5 | 25.2 | 93 | 77 | 16.4 |
| 23 | 1005.4 | 31.4 | 28.1 | 26.2 | 25.1 | 84 | 48 | 12.0 |
| 24 | 1003.1 | 31.4 | 28.5 | 26.9 | 25.6 | 84 | 58 | 29.8 |
| 25 | 998.8 | 32.7 | 30.1 | 27.5 | 24.3 | 72 | 63 | - |
| 26 | 994.9 | 29.6 | 27.5 | 25.3 | 23.3 | 78 | 88 | 12.0 |
| 27 | 994.7 | 27.1 | 25.8 | 24.9 | 24.4 | 93 | 97 | 5.7 |
| 28 | 998.1 | 29.0 | 26.5 | 25.3 | 25.1 | 92 | 86 | 21.8 |
| 29 | 1000.1 | 28.6 | 26.8 | 25.2 | 24.2 | 91 | 92 | 114.7 |
| 30 | 1003.2 | 29.6 | 27.7 | 25.6 | 25.2 | 87 | 88 | 14.3 |
| 31 | 1005.4 | 29.9 | 27.7 | 26.0 | 25.6 | 88 | 86 | 8.9 |
| Mean/Total | 1003.5 | 30.7 | 28.4 | 26.5 | 24.8 | 82 | 64 | 488.5 |
| Normal | 1005.1 | 31.3 | 28.4 | 26.3 | 24.8 | 81 | 66 | 391.4 |
| Station | Hong Kong Observatory | |||||||
| Date AUGUST |
Total Bright Sunshine (hours) |
Daily Global Solar Radiation (MJ/m2) |
Total Evaporation (mm) |
Prevailing Wind Direction (degrees) |
Mean Wind Speed (km/h) |
|---|---|---|---|---|---|
| 1 | 10.8 | 23.79 | 6.5 | 230 | 9.6 |
| 2 | 11.5 | 25.14 | 6.3 | 230 | 14.4 |
| 3 | 10.8 | 24.38 | 5.6 | 240 | 17.0 |
| 4 | 6.7 | 17.59 | 5.9 | 240 | 13.5 |
| 5 | 3.8 | 12.56 | 1.6 | 130 | 15.1 |
| 6 | 1.8 | 5.29 | 7.1 | 110 | 18.8 |
| 7 | 11.3 | 24.57 | 5.6 | 110 | 12.9 |
| 8 | 6.9 | 12.94 | 3.0 | 180 | 9.5* |
| 9 | 10.2 | 21.58 | 5.9 | 250 | 11.2* |
| 10 | 10.3 | 20.48 | 5.6 | 260 | 9.7* |
| 11 | 1.5 | 6.66 | 4.3 | 090 | 12.8 |
| 12 | 1.9 | 9.51 | 2.3 | 280 | 16.5 |
| 13 | 9.7 | 21.31 | 5.2 | 250 | 22.3 |
| 14 | 5.5 | 18.42 | 6.1 | 230 | 23.0 |
| 15 | 8.2 | 19.13 | 4.9 | 140 | 21.5 |
| 16 | 10.8 | 19.53 | 5.2 | 130 | 8.6 |
| 17 | 10.3 | 19.19 | 5.1 | 280 | 17.3 |
| 18 | 2.5 | 11.87 | 4.3 | 250 | 12.6 |
| 19 | 3.6 | 11.18 | 5.6 | 250 | 10.1 |
| 20 | 3.4 | 14.13 | 6.6 | 040 | 12.3 |
| 21 | - | 1.74 | 1.1 | 160 | 15.0 |
| 22 | - | 5.61 | 1.1 | 050 | 12.6 |
| 23 | 7.2 | 15.57 | 4.3 | 010 | 8.3 |
| 24 | 4.3 | 10.56 | 6.1 | 300 | 14.4 |
| 25 | 7.6 | 17.76 | 5.8 | 300 | 17.8 |
| 26 | - | 3.48 | 0.8 | 300 | 24.3 |
| 27 | - | 2.69 | 0.7 | 310 | 9.5 |
| 28 | 2.4 | 9.79 | 2.4 | 170 | 22.5 |
| 29 | - | 2.45 | 0.7 | 170 | 37.3 |
| 30 | 0.9 | 6.85 | 1.8 | 180 | 30.1 |
| 31 | 2.0 | 8.74 | 1.7 | 210 | 17.5 |
| Mean/Total | 165.9 | 13.69 | 129.2 | 240 | 16.1 |
| Normal | 207.0 | 17.61 | 156.9 | 090 | 18.5 |
| Station | King's Park | Waglan Island^ | |||
The minimum pressure recorded at the Hong Kong Observatory was 992.4 hectopascals at 0234 HKT on 27 August.
The maximum air temperature recorded at the Hong Kong Observatory was 33.9 degrees C at 1515 HKT on 10 August.
The minimum air temperature recorded at the Hong Kong Observatory was 24.7 degrees C at 1304 HKT on 6 August.
The maximum gust peak speed recorded at Waglan Island was 87 kilometres per hour from 220 degrees at 0542 HKT on 30 August.
The maximum instantaneous rate of rainfall recorded at King's Park was 156 millimetres per hour at 1218 HKT on 21 August.
^ In case the data are not available from Waglan Island, observations of Cheung Chau or other nearby weather stations will be incorporated in computing the Prevailing Wind Direction and Mean Wind Speed.
*Wind data recorded at Cheung Chau were used due to interruption of power supply at Waglan Island.