EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, SEPTEMBER 2002
EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
SEPTEMBER 2002
| Date SEPTEMBER |
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 | 1008.3 | 32.9 | 29.6 | 27.6 | 24.8 | 76 | 31 | Trace |
| 2 | 1010.0 | 32.1 | 29.4 | 26.9 | 24.1 | 74 | 43 | 0.6 |
| 3 | 1009.9 | 30.6 | 27.8 | 25.1 | 24.1 | 80 | 73 | 6.8 |
| 4 | 1008.9 | 30.9 | 28.2 | 26.2 | 22.7 | 73 | 43 | - |
| 5 | 1007.7 | 31.9 | 29.1 | 26.7 | 21.8 | 65 | 38 | - |
| 6 | 1005.5 | 33.4 | 30.0 | 27.3 | 23.4 | 69 | 55 | - |
| 7 | 1003.9 | 31.7 | 29.1 | 27.0 | 18.2 | 52 | 10 | - |
| 8 | 1004.9 | 31.7 | 28.2 | 25.6 | 19.4 | 59 | 31 | - |
| 9 | 1006.3 | 31.6 | 28.7 | 26.3 | 23.1 | 72 | 52 | - |
| 10 | 1004.8 | 31.7 | 28.2 | 25.9 | 24.6 | 82 | 86 | 49.0 |
| 11 | 1003.3 | 28.0 | 26.0 | 23.8 | 23.5 | 86 | 94 | 39.5 |
| 12 | 1008.2 | 27.7 | 26.5 | 24.4 | 23.9 | 86 | 89 | 17.8 |
| 13 | 1009.0 | 28.0 | 26.6 | 25.3 | 24.9 | 90 | 84 | 9.2 |
| 14 | 1007.7 | 27.2 | 26.1 | 24.7 | 24.8 | 92 | 90 | 56.2 |
| 15 | 1005.7 | 26.1 | 25.3 | 24.3 | 24.7 | 96 | 97 | 161.1 |
| 16 | 1006.0 | 27.8 | 25.4 | 24.1 | 24.7 | 96 | 95 | 121.9 |
| 17 | 1008.4 | 25.9 | 24.7 | 23.9 | 24.0 | 96 | 98 | 162.8 |
| 18 | 1012.0 | 29.4 | 27.0 | 24.7 | 23.3 | 81 | 74 | 3.5 |
| 19 | 1012.9 | 29.7 | 27.8 | 26.3 | 23.2 | 76 | 75 | - |
| 20 | 1012.8 | 28.9 | 27.5 | 26.4 | 23.1 | 77 | 38 | - |
| 21 | 1011.8 | 29.2 | 27.5 | 26.6 | 23.6 | 79 | 69 | Trace |
| 22 | 1012.5 | 27.4 | 26.1 | 24.5 | 23.7 | 87 | 90 | 83.0 |
| 23 | 1013.4 | 27.8 | 26.3 | 24.6 | 21.7 | 76 | 89 | - |
| 24 | 1013.8 | 26.5 | 25.4 | 23.9 | 21.6 | 79 | 88 | 0.4 |
| 25 | 1013.6 | 26.2 | 25.0 | 24.2 | 22.9 | 88 | 88 | 5.6 |
| 26 | 1013.2 | 27.5 | 26.2 | 24.9 | 23.9 | 87 | 86 | 0.2 |
| 27 | 1012.5 | 29.4 | 27.4 | 26.1 | 24.4 | 84 | 71 | 0.2 |
| 28 | 1012.9 | 28.7 | 27.1 | 26.0 | 24.4 | 85 | 73 | 0.8 |
| 29 | 1012.9 | 27.2 | 26.2 | 24.7 | 23.5 | 85 | 88 | 4.4 |
| 30 | 1012.7 | 27.2 | 26.3 | 25.8 | 22.0 | 77 | 85 | Trace |
| Mean/Total | 1009.5 | 29.1 | 27.2 | 25.5 | 23.3 | 80 | 71 | 723.0 |
| Normal | 1008.8 | 30.3 | 27.6 | 25.5 | 23.3 | 78 | 63 | 299.7 |
| Station | Hong Kong Observatory | |||||||
| Date SEPTEMBER |
Total Bright Sunshine (hours) |
Daily Global Solar Radiation (MJ/m2) |
Total Evaporation (mm) |
Prevailing Wind Direction (degrees) |
Mean Wind Speed (km/h) |
|---|---|---|---|---|---|
| 1 | 9.3 | 19.66 | 5.3 | 230 | 10.3* |
| 2 | 9.5 | 20.12 | 5.5 | 200 | 12.7* |
| 3 | 4.7 | 12.59 | 3.4 | 030 | 9.0 |
| 4 | 10.0 | 21.06 | 5.4 | 020 | 10.5 |
| 5 | 8.2 | 17.84 | 4.8 | 230 | 8.5 |
| 6 | 8.0 | 15.65 | 6.0 | 350 | 12.0 |
| 7 | 10.6 | 21.83 | 7.3 | 360 | 30.0 |
| 8 | 10.1 | 21.44 | 6.0 | 360 | 15.8 |
| 9 | 7.1 | 14.72 | 3.5 | 080 | 12.7 |
| 10 | 3.2 | 12.85 | 7.1 | 360 | 15.1 |
| 11 | - | 3.47 | 1.8 | 100 | 62.9 |
| 12 | 0.2 | 7.69 | 3.5 | 110 | 30.7 |
| 13 | 1.9 | 9.35 | 0.3 | 110 | 14.9 |
| 14 | 0.1 | 5.03 | 2.9 | 110 | 14.7 |
| 15 | - | 3.13 | 2.4 | 130 | 27.3 |
| 16 | 2.0 | 8.56 | 2.2 | 100 | 25.2 |
| 17 | 0.1 | 4.01 | 3.9 | 020 | 20.6* |
| 18 | 9.1 | 21.31 | 5.2 | 090 | 28.5* |
| 19 | 6.4 | 17.31 | 4.6 | 090 | 31.9* |
| 20 | 10.7 | 22.20 | 5.4 | 090 | 28.2* |
| 21 | 7.0 | 16.75 | 3.4 | 090 | 19.3* |
| 22 | 0.7 | 6.36 | 2.4 | 040 | 6.4# |
| 23 | 3.2 | 12.87 | 3.7 | 350 | 13.6# |
| 24 | 0.6 | 6.24 | 1.5 | 060 | 26.5* |
| 25 | - | 5.66 | 0.9 | 060 | 34.9 |
| 26 | 3.9 | 10.93 | 2.5 | 080 | 29.7 |
| 27 | 8.0 | 13.95 | 3.0 | 120 | 20.4 |
| 28 | 8.2 | 16.96 | 4.2 | 110 | 17.2 |
| 29 | 2.0 | 10.04 | 3.2 | 080 | 28.5 |
| 30 | 1.3 | 10.23 | 2.6 | 080 | 28.0 |
| Mean/Total | 146.1 | 12.99 | 113.9 | 090 | 21.5 |
| Normal | 181.7 | 16.49 | 150.3 | 090 | 21.9 |
| Station | King's Park | Waglan Island^ | |||
The minimum pressure recorded at the Hong Kong Observatory was 1001.0 hectopascals at 0514 HKT on 11 September.
The maximum air temperature recorded at the Hong Kong Observatory was 33.4 degrees C at 1514 HKT on 6 September.
The minimum air temperature recorded at the Hong Kong Observatory was 23.8 degrees C at 1825 HKT on 11 September.
The maximum gust peak speed recorded at Waglan Island was 112 kilometres per hour from 120 degrees at 1641 HKT on 11 September.
The maximum instantaneous rate of rainfall recorded at King's Park was 204 millimetres per hour at 1349 HKT on 17 September.
^ 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 for that day due to malfunction of power supply at Waglan Island.
# Wind data recorded at Tap Mun were used for that day due to malfunction of power supply at both Cheung Chau and Waglan Island.