EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG, AUGUST 2010
EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG
,
AUGUST 2010
| 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 | 1010.3 | 32.7 | 30.0 | 28.3 | 25.9 | 79 | 51 | Trace |
| 2 | 1010.3 | 32.7 | 29.4 | 28.0 | 25.4 | 79 | 64 | 1.1 |
| 3 | 1007.5 | 32.2 | 29.1 | 27.3 | 24.4 | 76 | 39 | Trace |
| 4 | 1005.1 | 33.1 | 30.0 | 27.5 | 24.7 | 74 | 28 | - |
| 5 | 1005.5 | 33.7 | 29.4 | 24.3 | 25.2 | 79 | 62 | 41.6 |
| 6 | 1006.0 | 32.2 | 28.4 | 25.0 | 24.8 | 81 | 82 | 1.6 |
| 7 | 1004.5 | 32.2 | 28.8 | 25.7 | 25.7 | 84 | 81 | 39.1 |
| 8 | 1003.5 | 32.2 | 28.8 | 25.8 | 25.8 | 84 | 84 | 18.0 |
| 9 | 1003.9 | 32.6 | 29.6 | 27.7 | 26.2 | 82 | 76 | 0.2 |
| 10 | 1006.2 | 33.7 | 30.2 | 28.0 | 25.6 | 77 | 46 | Trace |
| 11 | 1008.7 | 30.1 | 28.3 | 26.9 | 26.1 | 88 | 69 | 22.2 |
| 12 | 1009.5 | 32.6 | 29.3 | 27.1 | 25.2 | 79 | 61 | 3.0 |
| 13 | 1008.7 | 32.7 | 29.8 | 27.9 | 25.7 | 79 | 54 | 3.8 |
| 14 | 1009.2 | 31.7 | 29.4 | 28.0 | 25.4 | 79 | 56 | 8.7 |
| 15 | 1010.4 | 29.6 | 28.1 | 26.1 | 24.9 | 83 | 68 | 13.5 |
| 16 | 1010.3 | 30.1 | 27.1 | 25.3 | 24.3 | 85 | 80 | 5.1 |
| 17 | 1010.1 | 32.6 | 28.3 | 26.2 | 25.1 | 83 | 73 | 3.2 |
| 18 | 1011.7 | 30.9 | 28.6 | 26.9 | 25.5 | 84 | 74 | - |
| 19 | 1012.9 | 30.1 | 27.5 | 25.3 | 26.1 | 92 | 87 | 56.4 |
| 20 | 1012.6 | 32.1 | 28.0 | 24.5 | 25.1 | 85 | 82 | 22.1 |
| 21 | 1009.8 | 32.8 | 29.4 | 27.2 | 25.1 | 78 | 57 | Trace |
| 22 | 1008.4 | 31.9 | 28.9 | 26.5 | 25.7 | 83 | 74 | 9.1 |
| 23 | 1008.6 | 31.8 | 28.5 | 25.1 | 25.5 | 84 | 78 | 23.7 |
| 24 | 1010.4 | 29.3 | 26.5 | 25.3 | 25.2 | 93 | 88 | 42.6 |
| 25 | 1010.4 | 30.5 | 28.0 | 26.3 | 24.6 | 82 | 88 | 5.2 |
| 26 | 1008.7 | 31.5 | 28.4 | 27.2 | 25.0 | 82 | 67 | Trace |
| 27 | 1007.5 | 32.0 | 28.8 | 26.4 | 24.5 | 78 | 43 | - |
| 28 | 1007.2 | 30.8 | 27.9 | 24.7 | 24.3 | 81 | 44 | 30.1 |
| 29 | 1006.6 | 32.9 | 29.2 | 27.1 | 24.8 | 78 | 71 | - |
| 30 | 1004.1 | 32.6 | 29.7 | 27.7 | 24.4 | 74 | 80 | - |
| 31 | 1002.4 | 33.0 | 30.4 | 28.1 | 23.8 | 69 | 83 | - |
| Mean/Total | 1008.1 | 31.9 | 28.8 | 26.6 | 25.2 | 81 | 67 | 350.3 |
| Normal* | 1005.1 | 31.1 | 28.4 | 26.4 | 24.9 | 82 | 69 | 444.6 |
| Station | Hong Kong Observatory | |||||||
| Date AUGUST |
Number of hours of Reduced Visibility# (hours) |
Total Bright Sunshine (hours) |
Daily Global Solar Radiation (MJ/m2) |
Total Evaporation (mm) |
Prevailing Wind Direction (degrees) |
Mean Wind Speed (km/h) |
|---|---|---|---|---|---|---|
| 1 | 0 | 9.2 | 26.16 | 7.6 | 130 | 16.1 |
| 2 | 0 | 8.5 | 21.87 | 6.0 | 200 | 14.4 |
| 3 | 0 | 10.4 | 26.29 | 6.6 | 230 | 17.9 |
| 4 | 0 | 10.7 | 25.15 | 5.9 | 270 | 18.8 |
| 5 | 2 | 8.7 | 21.00 | 7.0 | 030 | 13.5 |
| 6 | 0 | 6.4 | 17.98 | 4.9 | 040 | 20.7 |
| 7 | 0 | 6.1 | 18.19 | 7.5 | 080 | 23.9 |
| 8 | 0 | 7.4 | 21.15 | 5.2 | 080 | 28.0 |
| 9 | 0 | 10.2 | 23.97 | 6.0 | 090 | 17.3 |
| 10 | 0 | 8.8 | 20.39 | 6.3 | 170 | 8.9 |
| 11 | 0 | 1.8 | 8.12 | 7.0 | 110 | 6.4 |
| 12 | 0 | 6.7 | 20.22 | 4.7 | 190 | 11.7 |
| 13 | 0 | 8.0 | 21.32 | 5.2 | 200 | 13.0 |
| 14 | 0 | 6.9 | 16.48 | 3.1 | 190 | 11.0 |
| 15 | 0 | 4.8 | 14.35 | 2.8 | 210 | 13.7 |
| 16 | 0 | 1.4 | 10.43 | 2.5 | 200 | 13.5 |
| 17 | 0 | 7.6 | 20.66 | 4.1 | 020 | 8.4 |
| 18 | 0 | 5.5 | 16.28 | 4.2 | 050 | 16.3 |
| 19 | 0 | 2.3 | 12.89 | 4.2 | 070 | 28.7 |
| 20 | 0 | 8.7 | 23.58 | 4.9 | 030 | 15.2 |
| 21 | 0 | 10.9 | 25.64 | 4.2 | 060 | 18.6 |
| 22 | 0 | 9.0 | 22.68 | 3.9 | 090 | 32.3 |
| 23 | 0 | 5.3 | 16.63 | 3.5 | 100 | 27.8 |
| 24 | 0 | 2.0 | 13.03 | 2.2 | 090 | 18.4 |
| 25 | 0 | 4.3 | 15.85 | 3.7 | 190 | 12.0 |
| 26 | 0 | 5.3 | 12.54 | 3.5 | 160 | 5.8 |
| 27 | 0 | 9.8 | 21.52 | 5.9 | 340 | 5.3 |
| 28 | 8 | 5.4 | 11.33 | 5.6 | 360 | 6.7 |
| 29 | 0 | 9.1 | 21.90 | 6.0 | 360 | 14.3 |
| 30 | 0 | 7.6 | 16.95 | 5.2 | 350 | 10.6 |
| 31 | 11 | 4.6 | 14.86 | 5.5 | 360 | 10.9 |
| Mean/Total | 21 | 213.4 | 18.69 | 154.9 | 080 | 15.5 |
| Normal* | 60.3§ | 189.7 | 16.07 | 143.2 | 240 | 20.0 |
| Station | Hong Kong International Airport |
King's Park | Waglan Island^ | |||
The minimum pressure recorded at the Hong Kong Observatory was 1000.4 hectopascals at 1632 HKT on 31 August.
The maximum air temperature recorded at the Hong Kong Observatory was 33.7 degrees C at 1254 HKT on 5 August and at 1514 HKT on 10 August.
The minimum air temperature recorded at the Hong Kong Observatory was 24.3 degrees C at 1944 HKT on 5 August.
The maximum gust peak speed recorded at Waglan Island was 101 kilometres per hour from 010 degrees at 1914 HKT on 5 August.
The maximum instantaneous rate of rainfall recorded at the Hong Kong Observatory was 254 millimetres per hour at 2233 HKT on 7 August.
# Reduced visibility refers to visibility below 8 kilometres when there is no fog, mist, or precipitation.
^ 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.
* 1971-2000 Climatological Normal, unless otherwise specified
§ 1997-2009 Mean value