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Last update: 14:00, 9 Sept 2026
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Treviso gets roughly 900-1,000 mm of rain a year, with a broad autumn maximum typical of the Veneto plain. A Treviso rain radar shows the local nuance clearly: hyperlocal radar catches a hail cell forming over the Prosecco Hills to the north while the Sile-fed canals through the historic center stay clear.
Treviso lies between the Sile and Cagnan rivers on the plain, just south of the Treviso Pre-Alps and the Prosecco Hills. Atlantic frontal systems from the W/SW dominate, with orographic enhancement as moist air lifts against the pre-Alpine foothills to the north — the same lift that drives summer convective storms and hail over the vineyards. The Sile itself, a spring-fed river and one of Europe's longest resurgence rivers, keeps flow relatively stable through the city compared with Alpine-fed rivers like the Bacchiglione or Piave, giving Treviso a steadier hydrology even during regional flood events.
RainViewer pulls live radar from the Dipartimento della Protezione Civile alongside ARPA Veneto's regional feeds, refreshed every 5 minutes. Hail belts affecting the Prosecco Hills — a UNESCO World Heritage wine landscape — are the most immediate risk a live radar view catches, well before a regional forecast would flag it.
The wet maximum, the standard Veneto plain pattern, coinciding with vendemmia (grape harvest, Sept-Oct) in the Prosecco Hills — Treviso's defining agricultural season.
A secondary wet peak.
The hail and thunderstorm season affecting the Prosecco Hills vineyards to the north, driven by daytime heating over the plain and enhanced near the foothills.
Cold with fog typical of the enclosed Po basin, and lower rainfall.
Hail belts strike the Conegliano-Valdobbiadene UNESCO World Heritage wine landscape, a named agricultural risk for the DOCG wine industry that growers track closely at harvest time.
As a secondary Venice-area gateway for low-cost carriers, travelers check live radar before a transfer into the historic center during a summer storm.
The historic center's canals, fed by the spring-fed Sile, anchor the "Marca Trevigiana" identity and draw visitors who check radar before a walk through the old town.
With Benetton headquartered in the province, a named industrial employer, outdoor logistics staff use live radar to time deliveries around convective storm activity.
The A27 links Treviso to Venice and the Alpine border toward Belluno and Austria; travelers heading north check radar for storm activity along the pre-Alpine foothills.
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 Treviso, the same feed covers the Prosecco Hills and pre-Alps to the north, and the Veneto plain toward Venice and Padua.
Check RainViewer's hyperlocal radar map for live rain over Treviso, refreshed every 5 minutes from Protezione Civile and ARPA Veneto data. The map distinguishes a hail cell over the Prosecco Hills from rain over the historic center.
Use the 2-hour forecast in 5-minute slices to check whether a convective cell will cross the Conegliano-Valdobbiadene hills before your visit.
Live radar shows storm cells approaching TSF before they arrive, since most systems reach the area from the W/SW.
Regional river flood exposure follows the same Veneto pre-Alpine pattern as neighboring Vicenza and Padua, though the Sile's spring-fed regime makes it less flashy than the Bacchiglione or Piave, giving Treviso a comparatively steadier river through the city.
Winter carries the lowest rainfall, though summer's storms, while intense, tend to be short and leave long dry stretches around them.
Orographic lift against the pre-Alpine foothills north of Treviso builds convective storms and hail more readily there than over the flat plain around the historic center.
Data refreshes every 5 minutes from the Protezione Civile national network and ARPA Veneto's regional radar, tracking storm cells as they build over the foothills.
Yes — set a rain alert for a specific point, such as the Prosecco Hills or the historic center, and RainViewer notifies you before the storm cell arrives based on its tracked direction.
The Prosecco Hills harvest and Treviso Airport transfers both depend on knowing exactly when a hail cell or storm will move through, and a daily forecast cannot give you that timing. Because convective storms build fast against the pre-Alpine foothills, a static forecast leaves too much to chance for growers and travelers alike.
RainViewer gives you a 2-hour forecast in 5-minute slices, rain alerts before a storm reaches the Prosecco Hills or Treviso Airport, direction arrows tracking systems in from the W/SW, 48 hours of radar history to see how a hail event over the vineyards developed, and the ability to track multiple locations at once — the historic center, the Prosecco Hills, and the pre-Alpine foothills together.
A forecast says rain is possible in Treviso today. Live hyperlocal radar shows you the hail cell already building over the Conegliano-Valdobbiadene hills.
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