Timavo
General data
- Name: Timavo
- Water system: Adriatic Sea
- Water type: River
- Progression: Gulf of Trieste -> Adriatic Sea -> Mediterranean Sea -> Atlantic Ocean -> Planet Earth
- Climates: Subtropical
- Continents: Europe
- Countries: Italy
The Timavo River, known in Slovene as the Timava or Timav, is a two-kilometre stream in the Province of Trieste. It has four sources near San Giovanni (Slovene: Štivan) near Duino (Slovene: Devin) and outflows in the Gulf of Panzano (part of the Gulf of Trieste) 3 kilometres (2 mi) southeast of Monfalcone (Slovene: Tržič), Italy.
The river has a karst character. It receives much of its water through subterranean flow from the Reka River (Slovenia), but tracer studies have shown that other sinking rivers, Vipava, Soča, and Raša also contribute.From modelling results, the Timavo is believed to receive one third of its flow from the Reka and two-thirds of its flow from infiltration of precipitation into the Karst Plateau, and to a lesser extent from the other sinking river sources.