Date

Mean Pressure (hPa)

Air Temperature

Mean

Relative

Humidity

(%)

Total

Rainfall

(mm)

Maximum

(deg. C)

Mean

(deg. C)

Minimum

(deg. C)

September 2017

01

1005.6

31.7

27.9

26.1

83

6.5

02

1004.5

30.4

27.9

26.4

83

1.0

03

1005.4

29.9

27.3

25.6

88

23.8

04

1006.7

27.6

26.4

25.3

89

32.8

05

1008.5

30.7

28.3

25.9

87

6.4

06

1007.5

32.3

29.1

27.3

82

Trace

07

1008.2

30.7

28.5

27.5

84

1.8

08

1009.3

30.9

28.4

26.9

83

1.1

09

1009.0

32.0

28.1

26.0

86

25.8

10

1010.1

32.2

29.1

26.7

81

Trace

11

1009.7

32.4

29.8

27.6

75

0.0

12

1009.3

32.8

29.9

27.9

77

0.6

13

1009.5

34.0

30.0

28.3

73

0.0

14

1008.5

31.5

29.0

27.6

64

0.0

15

1009.5

33.2

29.4

27.8

77

Trace

16

1009.9

32.6

29.9

27.7

73

0.0

17

1009.4

32.6

30.1

28.5

72

0.0

18

1009.8

32.9

29.7

27.8

75

0.0

19

1010.2

32.2

29.1

27.6

75

0.0

20

1009.3

32.0

29.3

27.6

78

0.2

21

1008.6

32.0

29.4

27.9

79

Trace

22

1009.9

32.0

29.1

26.1

83

17.9

23

1010.8

31.4

29.0

26.7

85

33.4

24

1008.8

30.5

28.8

27.1

84

5.6

25

1010.1

31.9

29.4

27.7

81

0.5

26

1011.0

32.9

29.7

27.8

78

0.0

27

1009.6

33.0

29.9

27.7

78

0.0

28

1009.2

34.1

30.3

28.2

72

0.0

29

1012.2

33.1

30.2

28.8

78

Trace

30

1013.7

30.3

28.3

25.9

86

35.0

Source: Hong Kong Observatory – Hong Kong Observatory