Loading…
A UN observance on 27 August each year, created in 2024, for the conservation and sustainable management of lakes and their ecosystems.
World Lake Day is an international day observed on 27 August every year to raise awareness of the value of lakes and the need to conserve, restore and sustainably manage lake and associated ecosystems. It was created by the United Nations General Assembly through resolution A/RES/79/142, adopted on 12 December 2024, which designated 27 August as World Lake Day and invited member states, UN bodies and civil society to mark it with education, awareness and restoration activities. The first observance was on 27 August 2025, under the theme My Lake, My Story: Creating environmental, social and economic value for lakes. The UN Environment Programme (UNEP) facilitates the global observance. The date honours the first World Lake Conference, held in Shiga Prefecture, Japan, in 1984.
Type: PolicyObserved annually on 27 August — one of the newest UN observances, and the first devoted specifically to lakes rather than to wetlands or water in general
Established by UNGA resolution A/RES/79/142 of 12 December 2024; first observed on 27 August 2025
Facilitated by UNEP, which anchors the observance within its freshwater and ecosystem-restoration work
The date commemorates the first World Lake Conference of 1984 in Shiga Prefecture, Japan — a nod to the long-running international lake-management movement rather than to any treaty
Inaugural 2025 theme: My Lake, My Story: Creating environmental, social and economic value for lakes
Fills a real gap in the observance calendar, which already had World Water Day (22 March), World Wetlands Day (2 February) and World Oceans Day (8 June), but nothing for lakes
Not a treaty and not binding: it creates no obligations. Lake protection continues to run through the Ramsar Convention on Wetlands and through national law
Frequency: Moderate — important-days questions are standard in SSC, banking and railway exams, and a newly created UN observance is a likely first-year pick
Lakes hold a large share of the world's accessible surface freshwater and support drinking water supply, irrigation, fisheries, groundwater recharge, flood buffering and climate regulation, yet they have had less institutional attention than rivers or oceans. The pressures on them are cumulative rather than dramatic: nutrient loading from sewage and fertiliser runoff causing eutrophication and algal blooms, encroachment of lake beds by urban construction, siltation from catchment degradation, invasive species such as water hyacinth, over-abstraction, and warming that lengthens stratification and lowers dissolved oxygen. Because a lake sits at the bottom of its catchment, it accumulates every upstream failure — which is why lake restoration is really catchment management. Creating a dedicated UN day gives that argument a fixed annual platform and connects it to SDG 6 on water and sanitation and SDG 15 on life on land.
The lake-management movement predates the UN observance by four decades: the first World Lake Conference in Shiga, Japan, in 1984 led to the International Lake Environment Committee Foundation and to a series of world lake conferences, and the day's date was chosen to honour that origin. In India the relevant machinery is domestic and treaty-based rather than observance-based — the Ramsar Convention on Wetlands of 1971, to which India became a party in 1982; the Wetlands (Conservation and Management) Rules, 2017, which bar activities such as encroachment and waste dumping in notified wetlands; and the National Plan for Conservation of Aquatic Eco-systems, which merged the earlier National Lake Conservation Plan and National Wetlands Conservation Programme into one scheme. India's Ramsar list crossed 100 sites in 2026, a rapid expansion from 26 sites in 2014, though designation is a listing decision and does not by itself change conditions on the ground.
World Lake Day — 27 August, annually
Created by UNGA resolution A/RES/79/142, adopted 12 December 2024; first observed 27 August 2025
Facilitated by UNEP; date honours the 1984 first World Lake Conference in Shiga, Japan
2025 theme: My Lake, My Story: Creating environmental, social and economic value for lakes
Not a treaty — the binding instrument for lakes and wetlands is the Ramsar Convention, 1971
Do not confuse with World Wetlands Day, 2 February
India: 101 Ramsar sites as of August 2026; first in Asia, third globally; Tamil Nadu has the most
India's conservation scheme for lakes and wetlands: National Plan for Conservation of Aquatic Eco-systems (NPCA); rules: Wetlands (Conservation and Management) Rules, 2017
On 27 August every year. The first observance was on 27 August 2025.
United Nations General Assembly resolution A/RES/79/142, adopted on 12 December 2024, which designated 27 August as World Lake Day and called for education, awareness, conservation and restoration activities around lakes.
The date commemorates the first World Lake Conference, held in Shiga Prefecture, Japan, in 1984, which began the international lake-management movement.
World Wetlands Day, on 2 February, marks the signing of the Ramsar Convention in 1971 and covers all wetland types. World Lake Day, on 27 August, is a much newer observance created in 2024 and focuses specifically on lakes and their catchments.
The National Plan for Conservation of Aquatic Eco-systems (NPCA), a centrally sponsored scheme of the Ministry of Environment, Forest and Climate Change that merged the earlier National Lake Conservation Plan and the National Wetlands Conservation Programme.