Environmental Days In October 2025
Image Credit: NASA
This October there are awareness days for freshwater dolphins, lemurs and okapi as well as days to raise awareness of e-waste, human habitats and sustainability.
The key environmental dates, awareness days, weeks, months and environmental events in October 2025.
Energy Efficiency Day
Date: 1st October 2025
Energy Efficiency Day is a US based day to encourage everyone to make thier home more energy efficient as a way to save enrgy and cut pollution.
It is held on the first Wednesday in October each year.
World Habitat Day
Date: 3rd October
A UN designated day, World Habitat Day is celebrated on the first Monday in October and launches Urban October.
The day recognises the basic right of all to adequate shelter.
World Animal Day
Date: 4th October
World Animal Day was created to raise the status of animals in order to improve welfare standards around the globe.
Coordinated by the Naturewatch Foundation, to create a world where animals are always recognised as sentient beings.
International E-Waste Day
Date: 14th October
International E-Waste Day was founded to raise the profile of the global e-waste issue and encourage everyone to recycle e-waste, no matter how small.
It also promotes the correct treatment of electrical and electronic equipment to enable reuse, refurbishment and recycling.
World Migratory Bird Day
Date: 14th October
World Migratory Bird Day is held on the second Saturday of May and October each year. Part of the United Nations Environment Programme it focuses on a theme each year.
The theme for 2025 is Water which will focus on the topic of water and its importance for migratory birds.
International Sawfish Day
Date: 17th October
International Sawfish Day is a day to celebrate this endangered species and to highlight endangered sawfish and the challenges they face in our world's oceans.
World Okapi Day
Date: 18th October
World Okapi Day is aday to celbrate and educate people about the okapi, which is also known as the forest giraffe, Congolese giraffe and zebra giraffe, is native to the Democratic Republic of the Congo in central Africa.
National Reuse Day UK
Date: 18th October
National Reuse Day is an awareness day created to encourage us all to reuse items instead of throwing them away.
Held on 18th October each year in the UK, it was created by Freegle, to promote helping all of us reuse our unwanted items.
International Sloth Day
Date: 20th October
International Sloth Day is a day to to learn about these amazing animals, raise awareness about the problems they are facing.
Native to south and central America, they are in danger from hunters and poachers.
International Wombat Day
Date: 22nd October
International Wombat Day is celebrated mainly in the wombat's homeland of Australia, where it celebrates these marsupials.
Wombats are endangered due to its small population size, predation by wild dogs, competition for food because of overgrazing by cattle and sheep, and disease.
Sustainability Day
Date: 29th October 2025
Sustainability Day is held on the last Wednesday in October. Sustainability means creating the conditions to maintain or support human existance without depleting natural or physical resources.
It is a day to promote sustainability and raise awareness about what it means.
International Snow Leopard Day
Date: 23rd October
The snow leopard, or ounce, is a species of large cat native to the mountain ranges of Central and South Asia.
International Day of Climate Action
Date: 24th October
International Day of Climate Action is organised by 350.org to combat climate change.
Water Night UK
Date: 24th October
Water Night is lead by water-saving charity Waterwise.
They ask households to turn off all non-essential taps from 5-10 pm to raise awareness about water conservation and foster long-term behavioural change.
Participating in Water Night helps increase water literacy, leading to wiser water use.
Freshwater Dolphin Day
Date: 24th October
There are five species of dolphin that live exclusively in freshwater rivers. These relatively small creature's habitat has been adversely affected by agricultural, ranching and industrial activities, as well as by the use of dams for hydroelectric power.
This day raises awareness of freshwater dolphins and the challenges that they face.
World Lemur Day
Date: 25th October 2025
World Lemur Day is celebrated on the last Friday of October. Lemurs are facing extinction in their native Madagascar due to deforestation, hunting for bushmeat, live capture for the exotic pet trade, and climate change.
More key environmental dates
<<Environment days and events in September
Environment days and events in November >>
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