| August | |
| 4 | National Aboriginal and Torres Strait Islander Children's Day (NATSICD) |
| 5-11 | National Homelessness Week |
| 6 | Anniversary - Atomic bombing of Hiroshima |
| 9 | International Day of the World's Indigenous People |
| 9 | Anniversary - Atomic bombing of Nagasaki |
| 12 | International Youth Day |
| 13 | Tisha B'Av (Judaism) |
| 15 | Assumption of the Blessed Virgin Mary (Christianity) |
| 19 | World Humanitarian Day |
| 23 | International Day for the Remembrance of the Slave Trade and Its Abolition |
| 25 | Australian South Sea Islanders National Recognition Day |
| 26 | Krishna Janmashtami | Hinduism |
| 29 | International Day against Nuclear Tests |
| September | |
| Season of Creation | |
| 1 | World Day of Prayer for the Care of Creation |
