Operational hydrology network information (before data reliability is assessed). Official information can be obtained from the Hydrological Observations Division of the Lithuanian Hydrometeorological Service. The water level is given in centimeters above the zero of the water gauging station chart (the chart zero of the water gauging station is a conditional horizontal plane from which the water level is measured. It is set at approximately 0.5 m below the lowest possible water level).
2026-08-13
| Water body | Water temperature, °C | Notes |
| Lake Rubikiai (Anykščių RP) | – | |
| Lake Asveja (Dubingiai) (Asvejos RP) | 20,9 | |
| Lake Luodis (Gražutės RP) | – | |
| Lake Lūšiai (Aukštaitijos NP) | 21,1 | |
| Lake Dusia (Metelių RP) | 18,2 | |
| Lake Meteliai (Metelių RP) | 21,0 | |
| Lake Lūkstas (Varnių RP) | 19,0 | |
| Lake Sartai (Sartų RP) | 20,4 | |
| Lake Vištytis (Vištyčio RP) | – | |
| Lake Plateliai (Žemaitijos NP) | 19,7 | |
| Curonian Lagoon – Ventė | 19,4 | |
| Curonian Lagoon – Nida | 20,0 | |
| Baltic sea – Nida | 19,4 | |
| Baltic sea – Klaipėda | 19,4 | |
| Baltic sea – Palanga | 19,2 |
Water temperature in regional parks is updated every Thursday.
