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EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
NOVEMBER 2018 (Table 1)

Date
November
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 1012.5 27.4 24.6 22.6 11.6 45 84 -
2 1015.5 24.8 22.4 20.1 16.6 70 91 0.1
3 1016.7 23.4 21.5 19.4 19.1 86 99 8.3
4 1016.6 25.7 23.7 22.3 20.7 83 92 Trace
5 1016.8 26.7 24.5 23.5 20.5 79 77 Trace
6 1017.5 27.1 24.7 23.3 20.5 78 41 -
7 1017.6 27.1 25.0 23.6 20.8 77 73 -
8 1016.6 27.3 25.2 23.9 20.5 75 81 Trace
9 1016.8 27.1 24.5 22.9 19.4 74 82 -
10 1017.9 25.4 23.9 23.4 19.9 78 88 Trace
11 1017.0 25.7 23.8 22.5 19.9 79 68 -
12 1014.2 28.0 24.9 23.2 20.6 77 76 Trace
13 1014.1 26.3 24.3 23.2 19.9 76 80 Trace
14 1015.6 25.5 23.5 22.7 19.0 76 80 Trace
15 1015.8 23.6 23.2 22.7 19.9 82 86 Trace
16 1015.2 24.9 23.9 22.9 21.2 85 87 1.1
17 1015.8 23.8 23.5 23.1 21.3 87 96 0.5
18 1016.2 25.8 23.8 22.7 20.8 84 85 -
19 1017.5 25.8 23.9 22.0 19.1 75 78 -
20 1017.4 24.0 23.1 22.0 19.4 80 84 0.1
21 1016.4 27.2 23.9 21.2 20.4 81 82 2.4
22 1019.9 21.9 20.4 18.8 13.6 65 88 0.2
23 1020.1 23.4 20.9 18.1 14.2 66 40 Trace
24 1019.7 23.1 21.7 20.5 16.6 73 78 Trace
25 1018.8 21.6 19.5 17.4 16.5 84 95 21.0
26 1018.9 20.9 19.0 17.0 17.0 89 93 15.7
27 1019.0 22.5 20.5 19.0 17.5 83 89 16.3
28 1019.3 21.4 20.3 19.2 18.5 89 88 7.7
29 1021.0 23.3 21.3 19.8 16.7 75 46 Trace
30 1020.4 23.2 21.5 20.1 16.2 72 46 -
Mean/Total 1017.2 24.8 22.9 21.4 18.6 78 79 73.4
Normal* 1017.7 24.1 21.8 19.8 16.0 71 54 37.6
Station Hong   Kong   Observatory

EXTRACT OF METEOROLOGICAL OBSERVATIONS FOR HONG KONG,
NOVEMBER 2018 (Table 2)

Date
November
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 7.0 16.13 4.9 360 42.7
2 0 1.7 8.89& 2.9 360 28.7
3 0 - 5.95 1.1 360 17.3
4 0 2.9 8.73 2.2 080 28.3
5 0 5.6 15.01 3.2 070 35.2
6 0 10.2 19.86 4.0 070 34.5
7 0 6.9 16.48 3.4 070 29.0
8 14 5.9 12.03 3.5 010 11.9
9 0 5.1 13.79 3.9 360 28.4
10 0 0.8 7.12 2.3 070 45.2
11 0 6.7 14.80 2.6 070 26.0
12 12 4.5 10.95 2.7 100 10.3
13 2 6.0 14.70 3.9 070 29.8
14 0 3.9 12.32 3.4 080 40.7
15 0 - 3.63 0.4 070 40.8
16 0 0.6 5.66 1.3 070 29.1
17 0 - 2.46 1.2 070 35.3
18 0 4.5 11.94 2.9 070 24.4
19 2 6.4 13.68 3.7 010 21.5
20 0 2.9 7.79 1.8 070 36.1
21 3 8.8 17.04 5.0 060 22.0
22 0 1.4 7.62 2.8 360 34.7
23 2 9.3 16.61 2.9 360 22.3
24 0 6.7 12.77 3.0 070 32.1
25 0 - 2.75 2.3 040 24.6
26 0 0.3 5.04 0.7 040 22.7
27 0 0.2 5.53 1.9 040 25.9
28 0 - 4.82 0.8 060 30.8
29 5 6.1 13.34 2.5 070 30.3
30 0 9.5 17.20 3.2 070 32.1
Mean/Total 40 123.9 10.82 80.4 070 29.1
Normal* 125.6§ 180.1 12.28 99.5 080 27.0
StationHong   Kong
International   Airport
King's   Park Waglan   Island^

The minimum pressure recorded at the Hong Kong Observatory was 1010.5 hectopascals at 1538 HKT on 1 November.

The maximum air temperature recorded at the Hong Kong Observatory was 28.0 degrees C at 1435 HKT on 12 November.

The minimum air temperature recorded at the Hong Kong Observatory was 17.0 degrees C at 0341 HKT on 26 November.

The maximum gust peak speed recorded at Waglan Island was 62 kilometres per hour from 010 degrees at 1539 HKT on 1 November and from 080 degrees at 0802 HKT on 10 November.

The maximum 1-minute mean rainfall rate recorded at the Hong Kong Observatory was 32 millimetres per hour at 2014 HKT on 21 November.

# 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

§ 1997-2017 Mean value

& Data incomplete

Last revision date: <24 Dec 2018>