| No | Event | Date |
|---|---|---|
| 1 | Oman Environment Day | 8th January |
| 2 | World Water Day | 22nd March |
| 3 | Earth Hour | 26th March |
| 4 | Earth Day | 22nd April |
| 5 | Regional Environment Day | 24th April |
| 6 | International Day for Biological Diversity | 22nd May |
| 7 | World Environment Day | 5th June |
| 8 | International Day for Protection of Ozone | 16th September |
| 9 | Arab Environment Day | 14th October |
| 10 | Arab Water Day | 3ed March |
| 11 | Municipalities’ Week | Second Week of November annually |