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Daily Normals of Meteorological Elements for Hong Kong, December 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-Dec 1018.7 22.4 20.2 18.4 17.3 15.0 73 0.4 55
2-Dec 1018.9 22.2 20.0 18.2 17.0 14.7 73 0.5 54
3-Dec 1019.2 22.0 19.7 17.9 16.6 14.2 72 0.5 56
4-Dec 1019.5 21.6 19.5 17.6 16.2 13.7 70 0.5 57
5-Dec 1019.7 21.5 19.3 17.4 16.0 13.2 69 0.5 59
6-Dec 1019.9 21.3 19.1 17.1 15.7 12.7 68 0.9 59
7-Dec 1019.9 21.0 18.9 17.0 15.5 12.5 68 1.2 60
8-Dec 1019.7 21.0 18.9 16.9 15.5 12.5 68 1.1 60
9-Dec 1019.5 21.1 18.9 17.0 15.5 12.6 68 1.1 61
10-Dec 1019.4 20.9 18.8 17.0 15.6 12.8 69 1.4 62
11-Dec 1019.3 20.8 18.8 17.0 15.7 13.1 71 1.1 63
12-Dec 1019.4 20.8 18.8 17.0 15.8 13.3 71 0.9 65
13-Dec 1019.7 20.6 18.6 16.8 15.6 13.2 72 1.3 67
14-Dec 1020.1 20.2 18.2 16.4 15.4 13.0 73 1.5 67
15-Dec 1020.5 20.1 18.0 16.1 15.0 12.5 72 1.5 64
16-Dec 1020.8 19.8 17.7 15.8 14.7 12.1 71 1.3 62
17-Dec 1021.0 19.6 17.5 15.5 14.5 11.8 71 1.4 61
18-Dec 1021.1 19.7 17.4 15.5 14.4 11.6 70 1.1 59
19-Dec 1021.1 19.8 17.5 15.5 14.4 11.6 70 0.9 58
20-Dec 1020.9 19.8 17.5 15.5 14.5 11.6 70 0.6 56
21-Dec 1020.7 19.8 17.5 15.5 14.5 11.6 69 0.5 54
22-Dec 1020.4 19.9 17.6 15.5 14.5 11.5 69 0.6 52
23-Dec 1020.3 19.9 17.6 15.6 14.5 11.4 69 0.7 52
24-Dec 1020.1 19.8 17.6 15.5 14.5 11.6 69 0.9 52
25-Dec 1020.1 19.8 17.6 15.5 14.6 11.8 71 1.0 54
26-Dec 1020.2 19.7 17.4 15.5 14.5 11.8 71 1.0 54
27-Dec 1020.4 19.5 17.3 15.3 14.4 11.8 72 1.2 54
28-Dec 1020.6 19.4 17.0 15.0 14.2 11.7 72 1.1 53
29-Dec 1020.9 19.2 16.8 14.8 13.9 11.2 71 0.9 50
30-Dec 1021.1 19.1 16.7 14.7 13.7 10.9 70 0.7 48
31-Dec 1021.1 19.2 16.8 14.8 13.8 10.9 70 0.6 47
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-Dec 5.5 70 25 22.0 22.3
2-Dec 5.7 70 26 21.8 22.1
3-Dec 5.6 70 27 21.7 22.0
4-Dec 5.5 10 27 21.5 21.9
5-Dec 5.3 10 27 21.4 21.8
6-Dec 5.3 10 28 21.3 21.7
7-Dec 5.2 10 28 21.1 21.5
8-Dec 5.2 10 27 21.0 21.3
9-Dec 5.2 70 26 20.9 21.1
10-Dec 4.9 70 27 20.7 21.0
11-Dec 4.6 70 26 20.5 20.9
12-Dec 4.3 70 26 20.4 20.8
13-Dec 4.0 70 27 20.3 20.6
14-Dec 3.9 70 27 20.1 20.5
15-Dec 4.3 10 27 19.9 20.3
16-Dec 4.5 20 27 19.8 20.1
17-Dec 4.7 20 27 19.7 20.0
18-Dec 5.0 10 26 19.5 19.9
19-Dec 5.2 20 26 19.5 19.8
20-Dec 5.5 20 26 19.4 19.7
21-Dec 5.7 20 26 19.3 19.6
22-Dec 5.9 20 25 19.1 19.5
23-Dec 6.0 20 25 19.1 19.4
24-Dec 5.9 70 25 19.0 19.3
25-Dec 5.5 70 25 18.9 19.3
26-Dec 5.5 70 26 18.9 19.2
27-Dec 5.3 70 26 18.8 19.1
28-Dec 5.3 70 26 18.7 19.0
29-Dec 5.5 60 25 18.6 18.9
30-Dec 5.8 60 24 18.5 18.8
31-Dec 5.8 60 24 18.4 18.7
Observed at King's Park Waglan Island North Point

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


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


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


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


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


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


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


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


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


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


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


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


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


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


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


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


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