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About WMO Code Table 2700

Code Table 2700: Total Cloud amount

Code Figure Meaning
0 0 0
1 1 okta or less, but not zero 1/10 or less but not zero
2 2 oktas 2/10 - 3/10
3 3 oktas 4/10
4 4 oktas 5/10
5 5 oktas 6/10
6 6 oktas 7/10 - 8/10
7 7 oktas of more, but not 8 oktas 9/10 or more, but not 10/10
8 8 oktas 10/10
9 Sky obscured by fog and/or other meteorological phenomena
/ Cloud cover is indiscernible for reasons other than fog or other meteorological phenomena, or observation is not made