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Last update: 14:00, 9 Sept 2026
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Oristano rain radar covers the capital of western Sardinia's Tirso plain, sitting on the flat alluvial floodplain of the Tirso, Sardinia's longest river, with roughly 550-600 mm of rain a year in a standard island Mediterranean regime. Hyperlocal radar matters here because Oristano faces both river-driven and coastal flood risk on genuinely flat ground.
SW/W Atlantic fronts cross the Campidano di Oristano plain, and the flat terrain plus the Stagno di Cabras and Stagno di Santa Giusta lagoons mean water is slow to drain after heavy rain. The Tirso and its Omodeo dam upstream partly manage flood risk, but the low-lying plain around Santa Giusta lagoon still floods in extreme events, wettest in November and near-rainless in July and August.
RainViewer shows Atlantic fronts crossing the Campidano plain and building over the Tirso catchment in near real time, alongside Protezione Civile alerts with specific river-level monitoring on the Tirso. A forecast tells you rain is possible this week; live hyperlocal radar shows whether the lagoons are already filling.
the main rainy stretch, when the plain and lagoons are most exposed to slow drainage after heavy rain.
near-rainless, the driest stretch of the island Mediterranean regime.
the Sartiglia equestrian festival runs during Carnival (Feb-Mar), and the Sinis peninsula's fishing calendar peaks in autumn with the mullet roe (bottarga) season, overlapping the wet-season onset.
Bottarga and clam fishing centred on the lagoon is the area's signature industry, an activity directly tied to how much standing water sits on the flat plain after rain.
The Nov 2013 Cyclone Cleopatra brought serious flooding to parts of western Sardinia, reinforcing the province's autumn flood exposure even with the dam's partial management of river flow.
Sardinia's main rice- and vegetable-growing plain, fed by Tirso irrigation, depends on tracking rain that can either help or flood low fields depending on intensity.
The road linking Oristano to both Cagliari and Sassari crosses the flat plain; live radar helps time trips around SW/W Atlantic fronts before they cross the province.
The Carnival-season equestrian festival draws crowds during a period that can still see wet-season rain lingering into February and March.
RainViewer draws radar data for Italy from the Dipartimento della Protezione Civile (Italian Civil Protection Department) national radar network, supplemented by regional radar systems from ARPA agencies including ARPA Veneto, ARPAE Emilia-Romagna, ARPA FVG, and ARPAL, updated every 5 minutes. Coverage spans the Italian mainland, Sicily, and Sardinia. Around Oristano the map also covers the Sinis peninsula, Cagliari to the south, and the Tirso valley toward the Omodeo dam.
RainViewer's hyperlocal radar updates every 5 minutes to show current rain over Oristano and the Campidano plain, cross-checked against Protezione Civile alerts with Tirso river-level monitoring. The flat plain and lagoons mean standing water can persist after rain has passed.
Check the radar before heading out on the lagoon, since rain over the plain can raise water levels and affect fishing conditions around the Sinis peninsula. A 5-minute radar update is more useful than a daily forecast for this kind of planning.
SW/W Atlantic fronts crossing the flat Campidano plain can slow traffic on the SS131. Live radar shows whether the front has reached Oristano or is still approaching from the sea.
Yes — the low-lying plain around Santa Giusta lagoon still floods in extreme events despite the Tirso's Omodeo dam managing some flow, and the November 2013 Cyclone Cleopatra caused serious flooding across western Sardinia. The Tirso and its lagoons drain slowly after heavy rain.
Summer (June-August) is near-rainless and driest, ideal for the Sinis peninsula and lagoon activities. November brings the wettest weather and the highest flood risk on the plain.
The Campidano di Oristano is a genuinely flat river plain fed by the Tirso, and its Stagno di Cabras and Stagno di Santa Giusta lagoons drain slowly after heavy rain even with the Omodeo dam upstream. A general Sardinia forecast doesn't capture this plain-specific drainage lag.
RainViewer refreshes radar imagery every 5 minutes using the Protezione Civile national network and regional ARPA feeds. That frequency catches Atlantic fronts building over the Tirso catchment before the lagoons fill.
Yes — set a rain alert for Oristano or the Santa Giusta lagoon area to get notified before rain arrives. This is useful for fishermen, plain farmers, and SS131 commuters.
Oristano's flat Campidano plain and lagoons drain slowly, so rain from earlier in the day can still be raising water levels around Santa Giusta and Cabras. Track the next 2 hours of rain in 5-minute detail, set an alert before a trip out to the Sinis peninsula, and follow the storm's direction as Atlantic fronts arrive from the SW/W. Check 48 hours of radar history to see how the last front filled the lagoons, and compare Oristano with Cagliari and the Tirso valley side by side. A forecast says rain is possible this week; live hyperlocal radar shows the Campidano plain filling in real time.
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