# Lake Titicaca water level decline

> Developing situation record from CLSTR: https://clstr.news/situations/lake-titicaca-water-level-decline
> Updated: 2026-10-27T16:34:09.000Z. Sources: 3. Developments: 2.

Lake Titicaca is experiencing a significant reduction in water levels across the Andean region, affecting both Peru and Bolivia. In early October 2026, the National Service of Meteorology and Hydrology (Senamhi) in Peru reported a 53-centimeter drop since May, driven by rainfall deficits and high evaporation rates. Experts warned that levels could fall further if precipitation did not recover.

By late October, the decline had intensified. In Puno, Peru, the water level drop reached 62 centimeters, while the Huatajata station in Bolivia recorded a 59-centimeter decrease between April and October. Hydrologists noted that levels were 28 centimeters lower than the same period the previous year. 

Long-term data indicates a 15-year downward trend in precipitation. While recent levels in some areas remain higher than in 2024, current measurements represent some of the lowest levels recorded since 1973. Experts anticipate reduced river flow feeding the lake starting in December, with projections suggesting below-average rainfall for early 2027.

## Claims

- Lake Titicaca levels in Puno, Peru, dropped 62 centimeters since May 1. (reported by 2 sources)
- Average temperatures in the Puno region are oscillating between 19 and 22 degrees Celsius. (reported by 2 sources)
- Annual precipitation in the region has been decreasing for approximately 15 years. (reported by 2 sources)
- The water level at the Huatajata station in Bolivia decreased by 59 centimeters between April 24 and October 16. (reported by 1 source)
- Peruvian rivers feeding Lake Titicaca are projected to have lower flow starting in December. (reported by 1 source)
- The water level in Huatajata is 28 centimeters lower than the same day in the previous year. (reported by 1 source)

## Timeline

### 2026-10-27: Lake Titicaca water levels decline due to low rainfall and high temperatures

Water levels in Lake Titicaca are dropping due to rising temperatures and decreased rainfall in Peru and Bolivia, with experts forecasting continued low water flow through the end of the year.

3 sources. https://clstr.news/cluster/lake-titicaca-water-levels-decline-due-to-low-rainfall-and-high-temperatures

### 2026-10-05: Lake Titicaca water levels drop 53 centimeters amid drought risks

Lake Titicaca's water level has dropped 53 centimeters due to low rainfall and high evaporation, with a potential total decline of 70 centimeters by late 2026, increasing drought risks in Puno.

3 sources. https://clstr.news/cluster/lake-titicaca-water-levels-drop-53-centimeters-amid-drought-risks

---
Cite as: Lake Titicaca water level decline. CLSTR, https://clstr.news/situations/lake-titicaca-water-level-decline