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Daily Normal of Meteorological Elements for Hong Kong, September 1991-2020



The below figures represent daily mean values of the weather elements calculated from data
in the 30 years from 1991 to 2020 for the 5-day period centred on the day specified.
Date Mean
Pressure
(hPa)
Figure
Air Temperature
Figure
Wet Bulb
(deg. C)
Figure
Dew Point
(deg. C)
Figure
Relative
Humidity
(%)
Figure
Mean
Daily
Rainfall
(mm)
Figure
Amount
of Cloud
(%)
Figure
Mean
Maximum
(deg. C)
Mean
(deg. C)
Mean
Minimum
(deg. C)
1-Sep 1006.6 31.2 28.6 26.7 25.9 24.7 80 11.1 70
2-Sep 1006.8 31.0 28.4 26.6 25.8 24.7 81 11.7 71
3-Sep 1007.0 30.8 28.3 26.5 25.8 24.7 81 13.1 70
4-Sep 1007.1 30.8 28.3 26.4 25.8 24.7 81 11.3 70
5-Sep 1007.2 30.7 28.3 26.4 25.7 24.7 81 10.9 69
6-Sep 1007.4 30.7 28.3 26.4 25.7 24.6 81 10.6 69
7-Sep 1007.7 30.8 28.3 26.4 25.6 24.5 81 10.7 68
8-Sep 1008.0 30.8 28.2 26.4 25.6 24.4 80 9.1 67
9-Sep 1008.4 30.7 28.2 26.3 25.5 24.3 80 9.2 66
10-Sep 1008.6 30.8 28.2 26.3 25.4 24.2 80 8.7 65
11-Sep 1008.7 30.8 28.2 26.3 25.3 24.1 79 10.0 64
12-Sep 1008.5 30.8 28.2 26.2 25.2 23.9 79 12.1 64
13-Sep 1008.2 30.9 28.2 26.2 25.1 23.8 78 14.5 64
14-Sep 1008.0 30.8 28.1 26.1 25.1 23.7 78 18.0 64
15-Sep 1008.0 30.8 28.1 26.1 25.0 23.6 78 18.3 64
16-Sep 1008.1 30.7 28.1 26.1 25.0 23.5 77 15.9 65
17-Sep 1008.4 30.7 28.1 26.2 25.0 23.6 77 13.3 65
18-Sep 1008.9 30.6 28.1 26.1 25.0 23.6 77 10.5 64
19-Sep 1009.4 30.5 28.0 26.0 24.8 23.4 77 9.3 65
20-Sep 1009.5 30.4 27.9 25.9 24.6 23.1 76 8.2 65
21-Sep 1009.5 30.3 27.8 25.8 24.5 22.9 76 9.2 65
22-Sep 1009.6 30.1 27.6 25.6 24.3 22.8 76 10.4 67
23-Sep 1009.9 29.9 27.4 25.6 24.3 22.7 76 11.3 67
24-Sep 1010.1 29.9 27.4 25.6 24.3 22.8 77 9.9 67
25-Sep 1010.3 29.9 27.4 25.7 24.3 22.8 77 9.3 65
26-Sep 1010.4 29.9 27.4 25.7 24.2 22.8 77 8.4 64
27-Sep 1010.5 30.0 27.4 25.6 24.2 22.6 76 6.6 61
28-Sep 1010.6 30.0 27.4 25.6 24.1 22.6 76 5.9 61
29-Sep 1010.8 29.9 27.4 25.6 24.1 22.5 76 5.0 61
30-Sep 1011.0 29.8 27.3 25.5 24.1 22.5 76 5.2 61
Observed at Hong Kong Observatory

Date Bright
Sunshine
Duration
(hours)
Figure
Wind
Figure
Sea Temperature
Figure
Prevailing
Direction
(degrees)
Mean
Speed
(km/h)
AM
(deg. C)
PM
(deg. C)
1-Sep 5.3 90 17 26.8 27.1
2-Sep 5.0 80 17 26.8 27.1
3-Sep 5.1 90 17 26.7 27.1
4-Sep 5.2 90 17 26.7 27.0
5-Sep 5.3 90 18 26.6 27.1
6-Sep 5.5 90 18 26.6 27.1
7-Sep 5.8 90 18 26.7 27.1
8-Sep 6.0 80 18 26.7 27.2
9-Sep 5.9 80 18 26.7 27.2
10-Sep 6.1 80 18 26.8 27.2
11-Sep 6.2 80 19 26.9 27.2
12-Sep 6.2 80 19 26.9 27.2
13-Sep 6.0 80 22 26.9 27.2
14-Sep 5.9 80 23 27.0 27.3
15-Sep 5.8 80 23 27.1 27.4
16-Sep 5.8 80 23 27.1 27.5
17-Sep 5.8 90 23 27.1 27.5
18-Sep 6.0 90 22 27.1 27.5
19-Sep 6.0 90 22 27.2 27.5
20-Sep 6.2 90 22 27.2 27.5
21-Sep 6.0 90 22 27.2 27.5
22-Sep 5.6 80 24 27.2 27.5
23-Sep 5.5 80 26 27.2 27.5
24-Sep 5.6 80 26 27.1 27.5
25-Sep 5.7 80 26 27.1 27.4
26-Sep 5.9 80 26 27.1 27.5
27-Sep 6.3 80 24 27.1 27.5
28-Sep 6.3 80 23 27.2 27.6
29-Sep 6.3 80 23 27.2 27.7
30-Sep 6.2 80 23 27.3 27.7
Observed at King's Park Waglan Island North Point

Figure 1. Daily Normals of mean pressure at September (1991-2020)


Figure 1. Daily Normals mean pressure at September (1991-2020)


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Figure 2. Daily Normals air temperature at September (1991-2020)


Figure 2. Daily Normals air temperature at September (1991-2020)


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Figure 3. Daily Normals wet-bulb temperature and dew point at September (1991-2020)


Figure 3. Daily Normals wet-bulb temperature and dew point temperature at September (1991-2020)


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Figure 4. Daily Normals relative humdity at September (1991-2020)


Figure 4. Daily Normals relative humdity at September (1991-2020)


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Figure 5.  Figure 3. Daily Normals mean daily rainfall at September (1991-2020)


Figure 5. Daily Normals mean daily rainfall at September (1991-2020)


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Figure 6. Daily Normals mean daily Bright Sunshine Duration at September (1991-2020)


Figure 6. Daily Normals mean daily Bright Sunshine Duration at September (1991-2020)


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Figure 7. Daily Normals mean wind at September (1991-2020)


Figure 7. Daily Normals mean wind at September (1991-2020)


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Figure 8. Daily Normals mean sea temperature at September (1991-2020)


Figure 8. Daily Normals mean sea temperature at September (1991-2020)


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