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Climatological Information Services > Meteorological Normals and Extremes > 1981-2010 Normals for Hong Kong (Daily Normals)

January February March April May June July August September October November December

Daily Normals of Meteorological Elements for Hong Kong, May 1981 - 2010

The below figures represent daily mean values of the weather elements calculated from data
in the 30 years from 1981 to 2010 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 May 1011.0 27.4 24.8 22.9 22.8 21.8 84 9.0 78
2 May 1010.9 27.4 24.8 23.0 22.8 21.8 84 8.9 78
3 May 1010.7 27.4 24.8 22.9 22.8 21.8 84 9.8 79
4 May 1010.7 27.3 24.7 22.9 22.7 21.6 83 9.7 78
5 May 1010.7 27.5 24.8 22.9 22.6 21.5 83 8.0 76
6 May 1010.5 27.7 25.0 23.1 22.8 21.7 82 9.7 74
7 May 1010.3 28.0 25.3 23.4 23.0 21.8 82 10.2 74
8 May 1010.2 28.1 25.4 23.6 23.2 22.1 82 10.8 74
9 May 1010.3 28.2 25.5 23.8 23.4 22.3 83 11.9 74
10 May 1010.3 28.3 25.7 23.9 23.5 22.5 83 11.1 76
11 May 1010.2 28.5 25.8 24.1 23.7 22.6 83 7.6 75
12 May 1010.2 28.6 26.0 24.2 23.8 22.7 83 6.8 74
13 May 1010.1 28.7 26.1 24.3 23.8 22.7 82 6.0 73
14 May 1010.0 28.9 26.2 24.3 23.8 22.6 81 4.7 72
15 May 1009.8 28.8 26.1 24.3 23.7 22.5 81 5.7 73
16 May 1009.6 28.7 26.1 24.2 23.7 22.5 81 6.6 74
17 May 1009.4 28.7 26.1 24.2 23.6 22.5 81 7.8 74
18 May 1009.1 28.6 26.1 24.2 23.7 22.5 82 10.1 74
19 May 1008.8 28.5 26.1 24.2 23.7 22.6 82 12.1 75
20 May 1008.5 28.4 26.1 24.2 23.8 22.7 83 11.7 76
21 May 1008.3 28.3 26.1 24.3 23.9 22.9 83 11.8 76
22 May 1008.2 28.4 26.1 24.4 23.9 22.9 83 11.6 77
23 May 1008.2 28.5 26.2 24.5 24.0 23.0 83 8.9 78
24 May 1008.2 28.6 26.3 24.6 24.1 23.0 83 7.4 78
25 May 1008.2 28.7 26.4 24.7 24.2 23.2 83 8.3 78
26 May 1008.1 28.8 26.5 24.8 24.3 23.2 83 9.5 78
27 May 1008.0 28.8 26.6 24.9 24.3 23.3 83 10.9 78
28 May 1007.8 29.0 26.7 25.0 24.5 23.5 83 12.3 78
29 May 1007.6 29.1 26.8 25.1 24.6 23.6 84 14.1 78
30 May 1007.4 29.3 26.9 25.2 24.7 23.7 83 13.8 78
31 May 1007.2 29.4 27.0 25.3 24.8 23.8 83 12.8 78
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 May 4.1 080 19 22.9 23.5
2 May 4.0 080 19 23.0 23.6
3 May 4.0 080 19 23.1 23.6
4 May 4.1 080 19 23.2 23.7
5 May 4.5 080 18 23.3 23.8
6 May 4.8 080 18 23.4 23.9
7 May 5.1 080 17 23.6 24.0
8 May 5.1 080 17 23.8 24.2
9 May 5.0 080 17 23.9 24.3
10 May 4.9 080 18 24.1 24.5
11 May 5.0 080 18 24.2 24.6
12 May 5.2 080 18 24.3 24.7
13 May 5.3 080 19 24.4 24.9
14 May 5.4 080 19 24.5 25.0
15 May 5.2 080 20 24.6 25.1
16 May 5.0 080 21 24.7 25.2
17 May 4.8 080 21 24.8 25.3
18 May 4.6 080 22 24.9 25.3
19 May 4.2 080 22 24.9 25.3
20 May 4.1 080 23 25.0 25.4
21 May 4.0 080 22 25.1 25.4
22 May 3.9 080 22 25.1 25.4
23 May 4.0 080 21 25.2 25.6
24 May 4.1 080 20 25.3 25.7
25 May 4.2 080 20 25.4 25.8
26 May 4.4 080 20 25.5 25.9
27 May 4.2 080 20 25.5 26.0
28 May 4.1 080 20 25.6 26.0
29 May 4.3 080 20 25.7 26.1
30 May 4.3 080 20 25.7 26.2
31 May 4.3 080 21 25.8 26.3
Observed at King's
Park
Waglan   Island North   Point

Figure 1. Daily Normals of mean pressure at May (1981-2010)


Figure 1.   Daily Normals mean pressure at May (1981-2010)


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Figure 2. Daily Normals air temperature at May (1981-2010)


Figure 2.   Daily Normals air temperature at May (1981-2010)


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Figure 3. Daily Normals wet-bulb temperature and dew point at May (1981-2010)


Figure 3.   Daily Normals wet-bulb temperature and dew point temperature at May (1981-2010)


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Figure 4. Daily Normals relative humdity at May (1981-2010)


Figure 4.    Daily Normals relative humdity at May (1981-2010)


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Figure 5.  Figure 3. Daily Normals mean daily rainfall at May (1981-2010)


Figure 5.   Daily Normals mean daily rainfall at May (1981-2010)


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Figure 6. Daily Normals mean daily Bright Sunshine Duration at May (1981-2010)


Figure 6.   Daily Normals mean daily Bright Sunshine Duration at May (1981-2010)


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Figure 7. Daily Normals mean wind at May (1981-2010)


Figure 7.   Daily Normals mean wind at May (1981-2010)


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Figure 8. Daily Normals mean sea temperature at May (1981-2010)


Figure 8.   Daily Normals mean sea temperature at May (1981-2010)


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Last revision date: <23 Mar 2015>