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Meteorological Service
AIRAC cycles
| EFFECTIVE DATE | LAST DATE FOR RAW DATA TO REACH AIS | PUBLICATION DATE (Major changes) | PUBLICATION DATE (Usual changes) | |
| 0 | 90 | 56 | 42 | |
| 1 | 22-Jan-26 | 24-Oct-25 | 27-Nov-25 | 11-Dec-25 |
| 2 | 19-Feb-26 | 21-Nov-25 | 25-Dec-25 | 08-Jan-26 |
| 3 | 19-Mar-26 | 19-Dec-25 | 22-Jan-26 | 05-Feb-26 |
| 4 | 16-Apr-26 | 16-Jan-26 | 19-Feb-26 | 05-Mar-26 |
| 5 | 14-May-26 | 13-Feb-26 | 19-Mar-26 | 02-Apr-26 |
| 6 | 11-Jun-26 | 13-Mar-26 | 16-Apr-26 | 30-Apr-26 |
| 7 | 09-Jul-26 | 10-Apr-26 | 14-May-26 | 28-May-26 |
| 8 | 06-Aug-26 | 08-May-26 | 11-Jun-26 | 25-Jun-26 |
| 9 | 03-Sep-26 | 05-Jun-26 | 09-Jul-26 | 23-Jul-26 |
| 10 | 01-Oct-26 | 03-Jul-26 | 06-Aug-26 | 20-Aug-26 |
| 11 | 29-Oct-26 | 31-Jul-26 | 03-Sep-26 | 17-Sep-26 |
| 12 | 26-Nov-26 | 28-Aug-26 | 01-Oct-26 | 15-Oct-26 |
| 13 | 24-Dec-26 | 25-Sep-26 | 29-Oct-26 | 12-Nov-26 |
| 1 | 21-Jan-27 | 23-Oct-26 | 26-Nov-26 | 10-Dec-26 |
| 2 | 18-Feb-27 | 20-Nov-26 | 24-Dec-26 | 07-Jan-27 |
| 3 | 18-Mar-27 | 18-Dec-26 | 21-Jan-27 | 04-Feb-27 |
| 4 | 15-Apr-27 | 15-Jan-27 | 18-Feb-27 | 04-Mar-27 |
| 5 | 13-May-27 | 12-Feb-27 | 18-Mar-27 | 01-Apr-27 |
| 6 | 10-Jun-27 | 12-Mar-27 | 15-Apr-27 | 29-Apr-27 |
| 7 | 08-Jul-27 | 09-Apr-27 | 13-May-27 | 27-May-27 |
| 8 | 05-Aug-27 | 07-May-27 | 10-Jun-27 | 24-Jun-27 |
| 9 | 02-Sep-27 | 04-Jun-27 | 08-Jul-27 | 22-Jul-27 |
| 10 | 30-Sep-27 | 02-Jul-27 | 05-Aug-27 | 19-Aug-27 |
| 11 | 28-Oct-27 | 30-Jul-27 | 02-Sep-27 | 16-Sep-27 |
| 12 | 25-Nov-27 | 27-Aug-27 | 30-Sep-27 | 14-Oct-27 |
| 13 | 23-Dec-27 | 24-Sep-27 | 28-Oct-27 | 11-Nov-27 |