| 7D | +27.4% |
| 1M | +17.6% |
| 3M | +23.0% |
| 6M | +129.5% |
| YTD | +92.5% |
| 1Y | +79.4% |
In meteorology, an okta is a scale of measurement used to describe the amount of cloud cover at any given location such as a weather station. Sky conditions are estimated in terms of how many eighths of the sky are covered in cloud, ranging from 0 oktas through to 8 oktas. In addition, in the SYNOP code there is an extra cloud cover indicator '9' indicating that the sky is totally obscured, usually due to dense fog or heavy snow.