EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, SEPTEMBER 2003
EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
SEPTEMBER 2003
| 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 | 1005.0 | 31.8 | 29.5 | 27.5 | 24.8 | 76 | 84 | 0.2 |
| 2 | 994.7 | 29.9 | 27.1 | 24.2 | 23.5 | 81 | 92 | 75.6 |
| 3 | 1004.3 | 27.6 | 26.1 | 24.0 | 24.3 | 90 | 93 | 27.0 |
| 4 | 1009.7 | 26.9 | 26.4 | 25.7 | 24.3 | 89 | 81 | 0.9 |
| 5 | 1009.5 | 29.1 | 26.9 | 25.9 | 24.8 | 88 | 88 | 6.5 |
| 6 | 1008.0 | 27.7 | 26.4 | 25.0 | 24.5 | 90 | 86 | 10.8 |
| 7 | 1007.1 | 28.0 | 26.2 | 25.0 | 24.8 | 92 | 88 | 36.5 |
| 8 | 1008.1 | 29.3 | 27.4 | 25.4 | 25.1 | 88 | 83 | 8.3 |
| 9 | 1008.5 | 30.4 | 28.3 | 26.9 | 24.9 | 82 | 44 | - |
| 10 | 1007.2 | 31.4 | 28.7 | 26.5 | 25.0 | 81 | 32 | - |
| 11 | 1006.4 | 31.1 | 29.0 | 27.4 | 23.8 | 74 | 37 | - |
| 12 | 1007.9 | 31.3 | 28.8 | 27.0 | 22.6 | 70 | 17 | - |
| 13 | 1009.4 | 31.1 | 29.0 | 27.7 | 25.4 | 81 | 60 | - |
| 14 | 1008.4 | 28.5 | 26.0 | 24.7 | 24.7 | 93 | 94 | 89.0 |
| 15 | 1008.3 | 26.6 | 25.6 | 24.6 | 24.7 | 95 | 97 | 97.0 |
| 16 | 1010.0 | 29.2 | 27.0 | 25.4 | 25.4 | 91 | 86 | 23.6 |
| 17 | 1010.9 | 29.7 | 27.9 | 26.4 | 25.1 | 85 | 79 | 0.3 |
| 18 | 1009.6 | 31.7 | 29.1 | 26.9 | 23.9 | 75 | 55 | - |
| 19 | 1008.1 | 32.1 | 29.3 | 27.4 | 24.9 | 78 | 36 | - |
| 20 | 1008.7 | 32.6 | 29.9 | 28.0 | 25.5 | 78 | 43 | Trace |
| 21 | 1010.2 | 30.6 | 27.8 | 25.9 | 23.9 | 80 | 81 | 15.2 |
| 22 | 1011.2 | 26.5 | 25.1 | 23.6 | 21.9 | 83 | 92 | 2.3 |
| 23 | 1011.5 | 27.5 | 26.0 | 24.9 | 21.7 | 77 | 85 | - |
| 24 | 1012.5 | 28.6 | 26.8 | 25.4 | 22.4 | 77 | 74 | Trace |
| 25 | 1012.9 | 29.2 | 27.3 | 25.4 | 20.8 | 69 | 43 | - |
| 26 | 1011.6 | 29.9 | 27.8 | 26.1 | 22.4 | 73 | 60 | - |
| 27 | 1009.9 | 29.8 | 27.9 | 26.7 | 23.2 | 76 | 40 | - |
| 28 | 1009.4 | 30.3 | 28.2 | 27.0 | 24.1 | 79 | 63 | - |
| 29 | 1010.5 | 29.9 | 28.0 | 26.8 | 23.0 | 75 | 53 | Trace |
| 30 | 1011.5 | 29.2 | 27.6 | 25.9 | 23.4 | 78 | 67 | 0.8 |
| Mean/Total | 1008.7 | 29.6 | 27.6 | 26.0 | 24.0 | 81 | 68 | 394.0 |
| 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 | 7.0 | 15.90 | 5.3 | 030 | 9.1 |
| 2 | 0.1 | 5.23 | 0.4# | 310 | 43.6 |
| 3 | 1.8 | 9.64 | 1.1 | 100 | 36.0 |
| 4 | - | 6.16 | 2.2 | 070 | 29.2 |
| 5 | 4.2 | 11.27 | 2.6 | 060 | 24.5 |
| 6 | - | 2.96 | 1.6 | 070 | 33.0 |
| 7 | 4.8 | 10.85 | 3.8 | 090 | 31.0 |
| 8 | 9.3 | 19.65 | 4.6 | 090 | 25.3 |
| 9 | 10.5 | 20.50 | 5.0 | 060 | 12.0 |
| 10 | 9.6 | 18.75 | 5.0 | 230 | 8.2 |
| 11 | 6.6 | 15.50 | 6.4 | 010 | 8.2 |
| 12 | 8.3 | 16.52 | 4.3 | 100 | 7.5 |
| 13 | 9.8 | 20.05 | 7.2 | 080 | 17.3 |
| 14 | - | 5.82 | 0.2# | 090 | 37.6 |
| 15 | 0.1 | 3.70# | 0.1# | 120 | 35.3 |
| 16 | 2.4 | 10.50# | 0.5 | 120 | 30.5 |
| 17 | 9.7 | 20.00# | 4.5 | 110 | 11.0 |
| 18 | 10.1 | 20.07 | 5.5 | 210 | 8.3 |
| 19 | 10.2 | 20.41 | 4.7 | 260* | 13.0* |
| 20 | 10.2 | 20.73 | 5.4 | 250 | 19.4 |
| 21 | 3.6 | 11.77 | 4.8 | 010 | 13.1 |
| 22 | - | 4.91 | 2.1 | 010 | 23.1 |
| 23 | 1.7 | 10.64 | 3.5 | 040 | 20.5 |
| 24 | 6.6 | 16.52 | 4.5 | 080 | 26.1 |
| 25 | 10.7 | 22.14 | 6.0 | 080 | 32.7 |
| 26 | 10.5 | 20.07 | 5.2 | 080 | 30.9 |
| 27 | 10.1 | 21.17 | 5.3 | 080 | 21.8 |
| 28 | 8.2 | 19.17 | 5.2 | 080 | 15.6 |
| 29 | 9.3 | 19.22 | 4.7 | 080 | 18.2 |
| 30 | 8.3 | 15.97 | 4.3 | 090 | 25.5 |
| Mean/Total | 183.7 | 14.53 | 116.0 | 080 | 22.3 |
| 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 981.2 hectopascals at 2053 HKT on 2 September.
The maximum air temperature recorded at the Hong Kong Observatory was 32.6 degrees C at 1348 HKT on 20 September.
The minimum air temperature recorded at the Hong Kong Observatory was 23.6 degrees C at 0600 HKT on 22 September.
The maximum gust peak speed recorded at Waglan Island was 118 kilometres per hour from 300 degrees at 1820 HKT on 2 September.
The maximum instantaneous rate of rainfall recorded at King's Park was 156 millimetres per hour at 0746 HKT on 7 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 due to malfunction of power supply at Waglan Island.
# Values estimated from incomplete data.