Daily Normals of Meteorological Elements for Hong Kong, May 1961-1990
The below figures represent daily mean values of the weather elements calculated from data
in the 30 years from 1961 to 1990 for the 5-day period centred on the day specified.
in the 30 years from 1961 to 1990 for the 5-day period centred on the day specified.
| Date | Mean Pressure (hPa) Figure |
Air Temperature Figure |
Relative Humidity (%) Figure |
Mean Daily Rainfall (mm) Figure |
Amount of Cloud (%) Figure |
||
|---|---|---|---|---|---|---|---|
| Mean Maximum (deg. C) |
Mean (deg. C) |
Mean Minimum (deg. C) |
|||||
| May 01 | 1011.0 | 27.3 | 24.4 | 22.4 | 84 | 8.6 | 75 |
| May 02 | 1010.8 | 27.5 | 24.6 | 22.6 | 84 | 8.5 | 75 |
| May 03 | 1010.7 | 27.6 | 24.7 | 22.7 | 84 | 8.0 | 75 |
| May 04 | 1010.7 | 27.6 | 24.7 | 22.7 | 83 | 8.9 | 75 |
| May 05 | 1010.7 | 27.7 | 24.9 | 22.8 | 82 | 7.5 | 74 |
| May 06 | 1010.8 | 28.0 | 25.1 | 23.0 | 82 | 6.5 | 73 |
| May 07 | 1010.7 | 28.4 | 25.4 | 23.3 | 82 | 5.7 | 72 |
| May 08 | 1010.6 | 28.6 | 25.7 | 23.7 | 82 | 6.6 | 72 |
| May 09 | 1010.4 | 28.7 | 25.8 | 23.9 | 83 | 9.3 | 73 |
| May 10 | 1010.1 | 28.8 | 25.9 | 24.0 | 84 | 9.8 | 75 |
| May 11 | 1009.8 | 28.8 | 26.0 | 24.1 | 84 | 11.8 | 76 |
| May 12 | 1009.7 | 28.7 | 25.9 | 24.0 | 84 | 12.2 | 76 |
| May 13 | 1009.7 | 28.6 | 25.9 | 23.9 | 84 | 12.1 | 76 |
| May 14 | 1009.7 | 28.7 | 25.9 | 23.9 | 83 | 9.3 | 74 |
| May 15 | 1009.7 | 28.7 | 25.9 | 23.9 | 82 | 9.2 | 73 |
| May 16 | 1009.6 | 28.6 | 25.8 | 23.9 | 82 | 7.7 | 73 |
| May 17 | 1009.3 | 28.7 | 25.9 | 23.9 | 81 | 8.9 | 71 |
| May 18 | 1008.8 | 28.8 | 26.0 | 24.0 | 81 | 12.3 | 70 |
| May 19 | 1008.5 | 28.8 | 26.1 | 24.1 | 81 | 12.6 | 70 |
| May 20 | 1008.2 | 28.8 | 26.1 | 24.1 | 82 | 13.1 | 70 |
| May 21 | 1008.0 | 28.8 | 26.1 | 24.1 | 83 | 12.5 | 71 |
| May 22 | 1008.1 | 28.8 | 26.1 | 24.2 | 83 | 11.5 | 72 |
| May 23 | 1008.2 | 28.8 | 26.2 | 24.3 | 83 | 7.6 | 73 |
| May 24 | 1008.2 | 28.9 | 26.3 | 24.4 | 83 | 8.5 | 73 |
| May 25 | 1008.0 | 29.0 | 26.4 | 24.5 | 83 | 8.2 | 74 |
| May 26 | 1007.7 | 29.1 | 26.5 | 24.6 | 83 | 11.9 | 75 |
| May 27 | 1007.3 | 29.3 | 26.7 | 24.7 | 83 | 13.1 | 75 |
| May 28 | 1007.1 | 29.4 | 26.8 | 24.8 | 83 | 14.3 | 75 |
| May 29 | 1006.9 | 29.5 | 26.9 | 25.0 | 83 | 14.1 | 76 |
| May 30 | 1006.7 | 29.7 | 27.1 | 25.2 | 83 | 14.4 | 77 |
| May 31 | 1006.7 | 29.7 | 27.2 | 25.2 | 83 | 12.6 | 76 |
| Observed at | Hong Kong Observatory | ||||||
| Date | Bright Sunshine Duration (hours) Figure |
Wind Figure |
|
|---|---|---|---|
| Prevailing Direction (degrees) |
Mean Speed (km/h) |
||
| May 01 | 4.6 | 080 | 17 |
| May 02 | 4.7 | 080 | 17 |
| May 03 | 4.7 | 080 | 17 |
| May 04 | 4.7 | 080 | 18 |
| May 05 | 4.9 | 080 | 17 |
| May 06 | 5.2 | 080 | 17 |
| May 07 | 5.4 | 090 | 16 |
| May 08 | 5.4 | 090 | 16 |
| May 09 | 5.4 | 090 | 17 |
| May 10 | 5.1 | 090 | 17 |
| May 11 | 4.9 | 090 | 18 |
| May 12 | 4.7 | 090 | 18 |
| May 13 | 4.7 | 090 | 18 |
| May 14 | 4.9 | 090 | 19 |
| May 15 | 5.1 | 090 | 20 |
| May 16 | 5.1 | 090 | 21 |
| May 17 | 5.3 | 090 | 22 |
| May 18 | 5.4 | 080 | 23 |
| May 19 | 5.3 | 080 | 22 |
| May 20 | 5.1 | 080 | 21 |
| May 21 | 5.1 | 080 | 21 |
| May 22 | 4.8 | 080 | 20 |
| May 23 | 4.8 | 090 | 19 |
| May 24 | 4.7 | 090 | 19 |
| May 25 | 4.6 | 090 | 20 |
| May 26 | 4.6 | 090 | 20 |
| May 27 | 4.8 | 090 | 20 |
| May 28 | 4.7 | 090 | 20 |
| May 29 | 4.8 | 090 | 20 |
| May 30 | 4.8 | 090 | 20 |
| May 31 | 4.7 | 080 | 21 |
| Observed at | King's Park | Waglan Island | |
Figure 1. Daily Normals mean pressure at May (1961-1990)
Figure 2. Daily Normals air temperature at May (1961-1990)
Figure 3. Figure 3. Daily Normals relative humdity at May (1961-1990)
Figure 4. Daily Normals mean daily rainfall at May (1961-1990)
Figure 5. Daily Normals mean daily Bright Sunshine Duration at May (1961-1990)
Figure 6. Daily Normals mean wind at May (1961-1990)