River
Tirso
152 km from source to mouth · Italy.
ItalyFlows into Sea of Sardinia
In numbers
Length
152km
Average flow
4.3m³/s
Basin
3,375km²
Drop
314m
from 314 m to 0 m
Country
1
The journey
From source to mouth
152 km of river and 11 stops on the way: 10 towns and cities on its banks, dams, bridges and the tributaries that feed it.
- 0 kmSourceat 314 m
- 96 kmBusachi1,282 people
- 100 kmLake Omodeo13 km²
- 123 kmOllastra1,233 people
- 125 kmZerfaliu1,125 people
- 129 kmSolarussa2,280 people
- 131 kmSimaxis2,074 people
- 139 kmSilì2,183 people
- 141 kmNuraxinieddu1,160 people
- 144 kmOristano31,671 people
- 145 kmDonigala Fenugheddu1,275 people
- 145 kmSolanas1,068 people
- 152 kmSea of Sardiniaat 0 m
Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.
River in Sardinia, Italy
At the mouth it carries 4.3 m³/s on average: an Olympic pool every 584 seconds. It drops from 314 m to 0 m, 2.1 m per kilometre on average. Its basin covers 3,375 km², about the size of CV. 145,000 people live in it. Highest water: December; lowest: from June to September. It is heavily dammed: reservoirs can hold 82% of a year's flow.
Where to start
- OristanoLargest city on its banks · 31,671 people
- Cagliari Elmas Airport (CAG)Nearest airport with scheduled flights, 83 km from the cityCar hire at CAG airport (Cagliari)Discover Cars · Affiliate link↗
- On the water2 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
- From May to SeptemberThe best months to visit
Tirso, month by month
Highest water: December
Lowest water: from June to September. Best months to visit: from May to September.
From about 3.3 m³/s in the lowest month to 85 m³/s in the highest. An estimate: the monthly flow is modelled from the lowest and highest months of WaterGAP (RiverATLAS, 1971–2000) and the rain and snow along the river (WorldClim). Dams change the real rhythm. The chip is the average air temperature; below it, the month's rain.
Plan the trip
Plan the trip: boat trips, a bed by the river, a car
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
The basin
Tirso: the basin in numbers
3,398 km² of land send their water to this river. This is what lives on it.
- 145,000people live in the basin
- 43/km²people per km²
- 473maverage altitude of the basin
- 730mmof rain a year (basin average)
- 14.3°Caverage air temperature
- 6%protected areas
- 0.5%covered by lakes
- 0.9km³held in reservoirs
What covers the basin
- 8% Forest
- 8% Cropland
- 30% Pasture
- 1% Towns and cities
RiverATLAS (HydroATLAS v1.0, CC BY 4.0): land cover, people, protected areas, glaciers and dams over the whole basin upstream of the mouth.
Along the river
Tirso: what you find on the way
- 1Weirs
- 1Boat ramps
- 1MarinasPontile Monte Paza
- 6River beachesVasca termale, terme abbandonate di Oddini o Oddine, Spiaggia del Pontile and 3 more
From OpenStreetMap, within 1.5 km of the river. Not mapped is not the same as not there.
Cross-checked with our atlases
Tirso in our other atlases
What our sister atlases know about the waterfalls on this river, the lakes it flows through, the beaches at its mouth, the mountains where it rises and the islands off its mouth.
1lake on its wayLakeyas
27beaches at the mouth and on the banksCoastya
9mountains at the sourcePeakyas
2islands off the mouthIslandyas
Lakes and reservoirs (1)
Lakes it flows through, by Lakeyas
- Lake Omodeokm 77 · 60 m deep13km²
Lakeyas is coming soonOpen Lakeyas ↗
Beaches (27)
At the mouth (25 km) and on the banks, by Coastya
- Spiaggia di Torregrande3.2 km away24.6°C
- Spiaggia di Su Tingiosu16 km away24.6°C
- Spiaggia di Mari Ermi16 km away24.6°C
- Spiaggia di Maimoni13 km away24.6°C
- Spiaggia di San Giovanni di Sinis9.2 km away24.6°C
- Spiaggia di Mare morto8.7 km away24.6°C
- Abarossa Dog Beach6.0 km away24.6°C
- Spiaggia di Torre dei Corsari23 km away24.8°C
19 more on CoastyaOpen Coastya ↗
Mountains at the source (9)
Within 15 km of the source, by Peakyas
- monte Lerno8.4 km away1,094m
- Monte Fraidorzu9.4 km away1,002m
- monte Orulo13 km away742m
- Monte Pirastru15 km away
- monte Nuschele14 km away
- Monte sa Mesa15 km away
- Punta Covecada12 km away
- Punta Comoretta11 km away
1 more on PeakyasOpen Peakyas ↗
Islands off the mouth (2)
Within 30 km of the mouth, by Islandyas
- Mal di Ventre23 km away0.8km²
- Scoglio del Catalano23 km away
Islandyas is coming soonOpen Islandyas ↗
From space
The source and the mouth, seen from orbit


Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data 2016), CC BY 4.0. The glowing line is the river as drawn by RiverATLAS.
Photos
Tirso in pictures




Tributaries
Where it flows, and what flows into it
Tributaries (1)
Also: Taloro
Nearby
Rivers nearby
Where these numbers come from
| Name, length, places | Wikidata (Q2121259) · CC0 |
|---|---|
| Course, profile, basin | RiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed along the river network from the point given by Wikidata |
| Flow | WaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0 |
| Climate along the river | WorldClim (RiverATLAS), 1970–2000 · CC BY 4.0 |
| Towns, bridges, dams | Wikidata · CC0; GeoNames · CC BY 4.0 |
| Along the river | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Our other atlases | Lakeyas, Coastya, Peakyas, Islandyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; HydroLAKES · CC BY 4.0; NOAA OISST |
Every source and licence is on the data sources page.
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.