2023 February 2 February World Wetlands Day 11 February International Day of Women and Girls in Science 14 February National Regenerative Agriculture Day 28 February Business Clean Up Day March 3 March World Wildlife Day 3 March Schools Clean Up Day 5 March Clean Up Australia Day 4–12 March SeaWeek 4–12 March Parks Week 20 March World Frog Day 21 March International Day of Forests 22 March World Water Day 23 March World Meteorological Day 23 March National Eucalyptus Day 25 March Earth Hour April 18 April World Heritage Day 10 April–14 May Australian Heritage Festival 22 April Earth Day 25 April World Penguin Day May 4 May International Firefighter’s Day 7–13 May International Compost Awareness Week 10 April–14 May Australian Heritage Festival 12 May International Day of Plant Health 13 May & 14 Oct World Migratory Bird Day 14 May Global Big Day 15 May International Kangaroo Care Awareness Day 15–21 May National Volunteer Week 20 May World Bee Day 22 May International Day for Biological Diversity 23 May World Turtle Day 27 May–3 June National Reconciliation Week 31 May World Parrot Day June 5 June World Environment Day 8 June World Oceans Day 15 June Global Wind Day July 2–9 July NAIDOC Week 26 July World Mangrove Day 28 July Schools Tree Day 30 July National Tree Day 31 July World Ranger Day August 1–31 August Platypus Month 1–7 August Landcare Week 9 August International Day of the World’s Indigenous Peoples 12–20 August National Science Week 7–13 August Keep Australia Beautiful Week August–December Help record wombats in your local area September 1–30 September National Biodiversity Month 1–30 September Save the Koala Month 1 September National Wattle Day 2–10 September New South Wales History Week 7 September National Threatened Species Day 7 September International Day of Clean Air for blue skies 9–10 September Our Bushland Festival 10 September National Bilby Day 24 September World Rivers Day 30 September Save the Koala Day October 2 October World Habitat Day 16–22 October National Water Week 16–22 October Aussie Backyard Bird Count 22 October International Wombat Day 23–30 October Bat Week November 10 November World Science Day for Peace and Development 11–20 November FrogID Week 11–19 November Australian Pollinator Week 18–24 November World Antimicrobial Awareness Week 21 November World Fisheries Day December 3 December Tropical Tree Day 4–10 December Coastcare Week 5 December World Soil Day 11 December International Mountain Day