By:
Dionísio Babo Soares
Despite relatively high annual rainfall, water scarcity in Timor-Leste continues to be a critical development challenge, especially in rural and mountainous areas. While the country receives between 1,500 and 2,500 mm of rainfall annually, only about 30% of this precipitation is effectively captured and utilized, primarily due to poor infrastructure, rapid runoff, and lack of water storage capacity. This paradox—abundant rainfall yet limited access to water—underscores deep-rooted systemic issues that require coordinated, long-term solutions. Based on various sources available, the writer tries to reflect and provoke readers to think about what can be done to address the issue of water in Timor-Leste.
Timor-Leste’s rainfall is heavily concentrated in the wet season (December to April), which accounts for over 80% of the annual precipitation. However, the country’s mountainous terrain, combined with an estimated 80% rate of forest degradation and widespread deforestation, leads to rapid surface runoff. Due to limited reforestation and soil erosion control, less than 10% of rainwater is retained in groundwater reserves or catchment systems. As a result, valuable water resources flow unused into the sea.
Despite these challenges, reforestation and soil stabilization efforts cover only about 5% of affected areas, indicating a vast opportunity for ecological restoration to improve water retention and aquifer recharge.
Over 70% of the population in rural areas depends on springs, rivers, or hand-dug wells for daily water needs. Many of these sources dry up or become contaminated during the dry season (May to November). Groundwater extraction, which accounts for approximately 60% of rural water supply, is often unregulated, leading to aquifer depletion and environmental degradation.
Saltwater intrusion affects up to 25% of freshwater wells in coastal regions, especially during droughts or when sea levels rise. Ataúro Island, for instance, over 90% of households face chronic water scarcity, with residents relying on expensive water deliveries or rainwater tanks when available.
According to national surveys, an alarming 42% of households nationwide use unimproved or unsafe drinking water sources, which has resulted in high rates of waterborne diseases. Diarrheal disease is the third leading cause of death in children under five in Timor-Leste, and outbreaks of cholera and typhoid are periodically reported.
Less than 20% of water sources are regularly tested for contamination, and basic community filtration or treatment systems are largely absent in most rural areas. Additionally, only 28% of households practice proper water storage hygiene, exacerbating contamination risks even when clean water is initially collected.
The dry season affects over 60% of the country with drought-like conditions. In particularly vulnerable regions such as Oecusse, Manatuto, and Ataúro, water availability per capita drops below 20 liters/day—well below the WHO’s recommended minimum of 50 liters/day. Agricultural production, which employs about 67% of the population, is severely affected by water shortages, contributing to food insecurity and economic vulnerability.
During El Niño years, the dry season extends further, and rainfall can decrease by up to 40%, creating emergency conditions that overwhelm local water systems and humanitarian resources.
As the most recent national data shows, around 60% of urban residents have access to basic water services (piped or protected sources within 30 minutes), only about 50% of the rural population has access to basic water services, and just 28% have access to water on premises.
Only 20% of the total population uses improved sanitation facilities, with roughly 40% of rural households practicing open defecation.
Water distribution networks are concentrated in cities like Dili, where over 90% of households are connected to municipal systems, compared to less than 15% in remote villages.
What are potential solutions and recommendations?
Building small and medium reservoirs could retain up to 40% of wet-season rainfall, reducing dry-season stress—currently, such infrastructure covers only an estimated 10% of potential storage capacity.
Implementing rainwater harvesting at the household and community levels nationwide could supply up to 50 liters per person per day, especially in high-rainfall regions. However, fewer than 10% of rural homes have functioning rainwater tanks.
For saltwater-affected coastal regions such as Atauro and Oecusee, decentralized desalination systems powered by solar energy can be effective. Small-scale units costing under $10,000 could provide clean water to 100+ households, yet such technologies are virtually absent in current government or NGO programs.
Low-tech options like chlorination tablets (costing less than $0.01 per liter) and UV disinfection kits can reduce pathogens by 99.9%. However, adoption rates remain low due to insufficient awareness and availability.
Investments in local treatment facilities and hygiene promotion are essential for every $1 invested in safe water and sanitation. WHO estimates a return of $4.30 in reduced health costs and improved productivity.
If I am not mistaken, only around 30% of local water user groups currently receive training in system maintenance or water governance. Therefore, building local ownership and establishing clear water use policies—including tariffs, dispute resolution, and water rights—is critical for long-term sustainability.
Climate projections show increasing rainfall variability and higher temperatures, intensifying drought and flood risks. Integrating water conservation, land management, and ecosystem protection into national climate strategies is essential.
What are the current Government and international efforts?
The Government of Timor-Leste, with support from partners such as UNICEF, ADB, and the World Bank, is implementing several projects, such as the Urban Water Supply Project (2020–2025) targeting Dili and Baucau, aiming to provide 24/7 access to over 100,000 people. There are also some rural water and sanitation projects, which are expected to serve 350 rural communities with improved water and hygiene services by 2027. There is also an effort to train over 500 water sector personnel with capacity-building in sustainable water management.
However, issues of inconsistent funding, fragmented coordination between ministries, and lack of reliable data on water usage and needs continue to hinder progress.
A Path toward water security
Timor-Leste is not suffering from water scarcity due to lack of rainfall—but rather due to a lack of systems, planning, and resilience. By investing in infrastructure, improving water quality and sanitation, promoting community-based solutions, and strengthening governance, the country can secure water access for all. Water security is not just a development target—it is a human right and the foundation for Timor-Leste’s health, stability, and economic future.
Personal Opinion (*)
