Monthly Normals of Meteorological Elements for Hong Kong, September 1961-1990
Climatological Information Services
> Climatological Normals and Extremes
> 1961-1990 Normals for Hong Kong (Grouped by month)
|
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
| Meteorological Elements | ||||
|---|---|---|---|---|
| ATMOSPHERIC PRESSURE | Mean | 1008.8 | hPa | |
| Mean Diurnal Range | 3.6 | hPa | ||
| AIR TEMPERATURE | Mean Daily Maximum | 30.3 | deg. C | |
| Mean | 27.6 | deg. C | ||
| Mean Daily Minimum | 25.5 | deg. C | ||
| RELATIVE HUMIDITY | Mean | 78 | % | |
| AMOUNT OF CLOUD | 63 | % | ||
| RAINFALL | Total | 299.7 | mm | |
| Duration | 68 | hours | ||
| Number of Days with |
0.1 mm or above |
14.37 | ||
| 25.0 mm or above |
3.57 | |||
| 50.0 mm or above |
1.63 | |||
| NUMBER OF DAYS WITH THUNDERSTORM | 3.93 | |||
| NUMBER OF DAYS WITH FOG (Visibility < 1000 m) |
0 | |||
| SOIL TEMPERATURE AT 0700 HOURS * |
0.5 m | 29.6 | deg. C | |
| 1.0 m | 29.4 | deg. C | ||
| BRIGHT SUNSHINE AT KING'S PARK |
Duration | 181.7 | hours | |
| Percentage of Possible | 49 | % | ||
| WIND AT WAGLAN ISLAND |
Prevailing Direction | 090 | degrees | |
| Mean Speed | 21.9 | km/h | ||
| SEA SURFACE TEMPERATURE AT NORTH POINT AT 0700 HOURS ** |
27.1 | deg. C | ||
Note : All measurements were made at the Hong Kong Observatory except
where specified.
* 1967 - 1996
** 1975 - 2004