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EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
JUNE 2017 (Table 1)

Date
June
Mean Pressure
(hPa)
Air   Temperature Mean
Dew Point
Temperature
(deg. C)
Mean
Relative
Humidity
(%)
Mean
Amount
of Cloud
(%)
Total
Rainfall
(mm)
Maximum
(deg. C)
Mean
(deg. C)
Minimum
(deg. C)
1 1003.2 30.6 29.1 27.8 26.0 83 88 Trace
2 1002.6 30.6 29.4 28.6 26.6 85 88 Trace
3 1002.7 32.5 30.0 28.5 26.6 83 84 -
4 1003.6 31.2 30.0 29.3 26.5 81 88 Trace
5 1006.2 33.5 30.3 28.8 26.3 80 67 Trace
6 1009.2 33.8 30.4 28.5 26.0 78 59 Trace
7 1010.0 34.0 30.0 27.2 26.0 80 50 4.3
8 1009.9 32.5 29.8 28.3 25.9 80 63 -
9 1009.2 31.9 29.5 28.1 25.8 81 81 1.1
10 1008.3 33.8 29.9 28.0 25.7 79 77 Trace
11 1007.0 34.1 29.8 28.1 25.6 78 47 Trace
12 1001.9 30.0 27.6 25.3 25.2 87 80 37.7
13 1006.2 28.9 26.4 24.3 25.1 93 91 219.4
14 1008.6 29.5 28.3 25.5 25.5 85 88 15.6
15 1007.6 31.1 29.2 26.8 25.7 81 88 14.5
16 1005.1 29.6 29.0 27.8 26.1 85 88 13.5
17 1003.7 28.4 25.5 24.4 24.8 96 93 138.0
18 1004.7 27.3 26.2 24.7 24.6 91 91 24.2
19 1005.3 28.3 26.2 25.3 24.8 92 86 32.6
20 1005.1 28.2 26.5 25.2 24.9 91 88 24.8
21 1005.3 29.2 27.4 25.2 25.5 90 89 95.9
22 1007.8 32.4 29.3 28.0 25.7 81 80 Trace
23 1007.7 31.6 28.9 27.5 25.8 84 80 10.5
24 1006.3 30.8 28.5 26.4 25.8 85 79 18.3
25 1006.9 31.5 29.2 26.8 25.1 79 81 4.2
26 1008.4 32.0 29.8 28.6 25.4 78 85 0.1
27 1009.5 31.5 29.5 28.6 25.5 79 83 1.3
28 1010.2 32.3 29.7 28.2 25.2 77 58 -
29 1009.7 32.8 29.6 27.9 25.4 78 62 -
30 1007.8 33.7 29.9 27.6 24.8 75 64 -
Mean/Total 1006.7 31.3 28.8 27.2 25.6 83 78 656.0
Normal* 1006.1 30.2 27.9 26.2 24.6 82 77 456.1
Station Hong   Kong   Observatory

EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
JUNE 2017 (Table 2)

Date
June
Number of hours
of Reduced
Visibility#
(hours)
Total
Bright
Sunshine
(hours)
Daily
Global Solar
Radiation
(MJ/m2)
Total
Evaporation
(mm)
Prevailing
Wind
Direction
(degrees)
Mean
Wind
Speed
(km/h)
1 0 1.3 11.85 2.7 240 37.8
2 0 0.5 8.58 2.0 240 36.1
3 0 6.2 21.85 4.8 240 30.5
4 0 1.5 9.44 2.4 210 22.9
5 0 5.2 18.70 3.8 160 21.3
6 0 6.5 20.57 4.9 150 19.4
7 0 10.3 26.98 5.3 150 14.6
8 0 8.3 22.67 4.0 120 15.4
9 0 7.8 22.51 4.5 120 20.6
10 0 8.7 21.66 4.3 150 16.1
11 0 8.7 21.00 5.7 130 10.8
12 0 4.4 17.54 1.1 080 53.5
13 0 - 2.12 1.7 240 32.0
14 0 - 6.78 1.3 210 19.8
15 0 3.0 14.42 3.4 230 31.3
16 0 - 4.84 2.7 230 40.3
17 0 - 2.94 2.1 230 19.8
18 0 - 6.11 1.8 250 16.2
19 0 0.3 7.08 1.8 260 11.7
20 0 0.2 4.84 1.8 240 13.9
21 0 0.4 4.86 1.0 210 27.6
22 0 5.6 18.16 3.3 210 22.4
23 0 5.2 15.87 4.2 180 19.5
24 0 6.1 17.32 3.6 190 23.0
25 0 8.4 22.74 4.7 240 25.6
26 0 6.3 21.40 4.3 230 28.1
27 0 5.1 16.66 3.7 230 24.8
28 0 10.7 26.97 5.1 240 18.3
29 0 8.8 22.86 4.5 230 9.5
30 0 9.4 23.34 4.9 150 7.9
Mean/Total 0 138.9 15.42 101.4 240 23.0
Normal* 17.6§ 146.1 14.19 117.1 220 22.9
StationHong   Kong
International   Airport
King's   Park Waglan   Island^

The minimum pressure recorded at the Hong Kong Observatory was 995.5 hectopascals at 2008 HKT on 12 June.

The maximum air temperature recorded at the Hong Kong Observatory was 34.1 degrees C at 1345 HKT on 11 June.

The minimum air temperature recorded at the Hong Kong Observatory was 24.3 degrees C at 0921 HKT on 13 June.

The maximum gust peak speed recorded at Waglan Island was 113 kilometres per hour from 010 degrees at 1953 HKT on 12 June.

The maximum 1-minute mean rainfall rate recorded at the Hong Kong Observatory was 164 millimetres per hour at 0848 HKT on 13 June.

# Reduced visibility refers to visibility below 8 kilometres when there is no fog, mist or precipitation.

   - The visibility readings at the Hong Kong International Airport are based on hourly observations by professional meteorological observers in 2004 and before, and average readings over the 10-minute period before the clock hour of the visibility meter near the middle of the south runway from 2005 onwards. The change of the data source in 2005 is an improvement of the visibility assessment using instrumented observations following the international trend.

   - Before 10 October 2007, the number of hours of reduced visibility at the Hong Kong International Airport in 2005 and thereafter displayed in this web page was based on hourly visibility observations by professional meteorological observers. Since 10 October 2007, the data have been revised using the average visibility readings over the 10-minute period before the clock hour, as recorded by the visibility meter near the middle of the south runway.

^ In case the data are not available from Waglan Island, observations of Cheung Chau or other nearby weather stations will be incorporated in computing the Prevailing Wind Direction and Mean Wind Speed.

* 1981-2010 Climatlogical Normal, unless otherwise specified

§ 1997-2016 Mean value

Last revision date: <04 Jul 2017>