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EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
OCTOBER 2016 (Table 1)

Date
October
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 1009.9 29.4 26.6 24.0 24.6 89 75 95.5
2 1009.0 29.8 27.6 26.2 24.3 82 76 Trace
3 1007.8 28.3 27.5 26.6 24.1 82 84 0.2
4 1008.1 29.5 27.5 26.5 24.4 83 60 -
5 1008.9 31.9 28.6 26.9 24.3 78 68 Trace
6 1009.1 32.4 28.5 25.9 23.5 75 57 16.7
7 1007.1 29.3 27.7 25.5 23.5 79 86 17.3
8 1006.8 29.9 28.1 27.0 22.4 71 88 Trace
9 1008.9 28.8 26.5 24.9 20.4 69 86 -
10 1010.2 28.1 25.3 23.5 19.4 70 74 -
11 1010.7 26.8 24.5 22.0 20.6 79 88 0.1
12 1012.5 25.8 24.6 23.0 21.6 84 88 0.9
13 1013.5 29.3 26.0 24.2 21.6 77 72 Trace
14 1013.2 29.9 26.7 25.0 21.9 76 70 Trace
15 1012.6 30.3 27.2 24.6 21.6 72 63 -
16 1010.9 30.8 28.0 25.9 22.1 71 62 -
17 1009.1 28.8 26.6 24.1 22.9 81 89 16.7
18 1008.1 25.5 24.8 23.9 24.2 96 91 178.7
19 1008.7 25.9 25.1 24.4 24.6 96 94 223.4
20 1004.6 29.5 27.3 24.7 23.8 82 82 -
21 997.1 28.0 26.1 24.4 23.6 86 96 72.5
22 1007.8 29.4 27.5 26.1 24.4 84 77 1.9
23 1010.0 29.1 27.1 25.8 24.9 88 68 -
24 1011.3 29.1 27.3 26.1 25.2 88 74 Trace
25 1013.3 29.8 27.3 26.1 24.8 87 65 Trace
26 1015.6 30.0 27.1 25.7 24.2 84 47 -
27 1016.0 30.9 27.5 25.4 23.5 79 41 -
28 1014.9 31.5 28.2 26.3 23.3 75 54 -
29 1017.2 29.0 26.7 24.3 22.7 79 70 0.5
30 1019.8 26.6 24.4 22.9 19.4 74 85 -
31 1019.1 28.7 25.5 23.1 19.7 70 66 -
Mean/Total 1010.7 29.1 26.8 25.0 22.9 80 74 624.4
Normal* 1014.1 27.8 25.5 23.7 20.2 73 58 100.9
Station Hong   Kong   Observatory

EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
OCTOBER 2016 (Table 2)

Date
October
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 12 5.8 16.05 0.6 090 16.2
2 9 3.0 11.57 4.2 060 17.8
3 0 1.2 8.37 2.0 050 28.5
4 0 4.9 9.68 1.9 050 17.5
5 0 5.7 16.61 4.4 070 18.7
6 0 8.9 18.76 6.8 010 19.3
7 0 3.8 11.82 3.1 010 23.6
8 0 2.1 10.54 3.7 360 35.2
9 0 4.7 15.92 6.1 010 33.0
10 0 6.8 16.51 3.5 020 28.0
11 0 0.7 9.51 3.2 010 29.8
12 0 0.1 4.70 1.3 060 39.7
13 0 6.5 17.41 4.7 080 39.5
14 0 9.0 19.58 3.9 080 34.6
15 0 7.0 15.64 4.5 050 20.3
16 0 7.8 15.66 5.0 020 20.3
17 0 2.2 7.73 N.A. 070 43.5
18 0 - 2.07 N.A. 090 57.5
19 0 0.1 2.27 N.A. 100 36.0
20 7 7.4 14.48 1.9 010 15.8
21 0 - 0.80 N.A. 220 60.8
22 0 5.0 12.47 0.5 220 18.2
23 0 2.8 10.47 2.1 100 6.0
24 0 4.1 12.90 1.9 120 13.8
25 0 9.2 20.00 4.2 090 16.5
26 0 8.5 17.55 3.2 070 17.1
27 0 9.8 19.82 4.6 060 11.1
28 0 10.3 20.33 3.3 020 8.6
29 0 3.7 11.38 5.3 080 31.5
30 0 3.6 12.46 4.1 020 32.3
31 0 7.9 17.24 5.2 070 24.0
Mean/Total 28 152.6 12.91 95.2& 070 26.3
Normal* 142.8§ 193.9 14.05 123.9 080 27.4
StationHong   Kong
International   Airport
King's   Park Waglan   Island^

The minimum pressure recorded at the Hong Kong Observatory was 990.7 hectopascals at 1132 HKT on 21 October.

The maximum air temperature recorded at the Hong Kong Observatory was 32.4 degrees C at 1326 HKT on 6 October.

The minimum air temperature recorded at the Hong Kong Observatory was 22.0 degrees C at 0543 HKT on 11 October.

The maximum gust peak speed recorded at Waglan Island was 115 kilometres per hour from 280 degrees at 1235 HKT on 21 October.

The maximum 1-minute mean rainfall rate recorded at King's Park was 173 millimetres per hour at 1503 HKT on 18 October.

# 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

§ 1997-2015 Mean value

& Data incomplete

Last revision date: <02 Nov 2016>