What is made here
Wine colours
Colours the rules allow. Pick a colour to filter the rules and grapes below.
Where it is
Terre di Offida in Italy
- Latitude
- 42.8°–43.1° N
- Vineyard altitude
- 147 m to 418 m
- Production zone
- 70,407 ha
Lies within
Falerio, Rosso Piceno
Covers the same area as
Offida
Worked out from the boundaries (smallest container first). They follow whole communes, so a neighbour sharing a commune can show up here too.
Boundary drawn from whole communes, so it is a little larger than the legal zone. Boundary: Eurac Research PDO inventory (CC0). Country outlines: Natural Earth. Dots on the zone map are the vineyard points used for climate.
Showing every colour The colour filter changes the rules and grapes. Climate, vintages and soils describe the vineyards, so they stay the same.
01 · What the law says
The rules
Limits on grapes, yields, ripeness and ageing that every wine labelled Terre di Offida must meet.
Blend rules
Terre di Offida Spumante
- ≥ 85% Passerina · Main grape
- ≤ 15% other non-aromatic white varieties suitable for Marche · Others allowed
Blend rules
Terre di Offida Vino Santo
- ≥ 85% Passerina · Main grape
- ≤ 15% other non-aromatic white varieties suitable for Marche · Others allowed
At least 36 months' ageing.
Blend rules
Terre di Offida Passerina Passito
- ≥ 85% Passerina · Main grape
- ≤ 15% other non-aromatic white varieties suitable for Marche · Others allowed
At least 18 months' ageing.
Other varieties allowed
Besides the main grapes, the rules allow these varieties in some wines. Grape names link where a profile exists.
25 varieties · Terre di Offida Spumante, Terre di Offida Vino Santo, Terre di Offida Passerina Passito
Albana, Biancame, Bombino Bianco, Famoso, Fiano, Friulano, Garganega, Garofanata, Grechetto, Incrocio Bruni 54, Maceratino, Malvasia Bianca Lunga, Malvasia Bianca di Candia, Manzoni Bianco, Montonico Bianco, Mostosa, Muscat Blanc A Petits Grains, Pecorino, Pinot Blanc, Riesling, Sauvignon Blanc, Trebbiano Toscano, Verdicchio Bianco, Vermentino, Welschriesling
In the vineyard and cellar: rules for every wine
3,000
Vines per hectare, minimum
Training
Systems allowed
spalliera semplice
No forcing
Forcing the vines is prohibited
Permitted
Irrigation
02 · Climate fingerprint
The climate
The growing season averages 17.9 °C, warm on Gregory Jones's scale, with 1,704 growing degree days (Winkler III).
The average year 1991–2020, vineyards at about 276 m
Monthly mean, °CRain, mmGrowing season
- Growing-season temperature
- 17.9 °C
- Warm · 17–19 °C (Jones)
- Growing degree days
- 1,704
- Region III: 1,667–1,943 degree days
- Growing-season rain
- 528 mm
- Of 922 mm a year
- Harvest rain
- 158 mm
- September–October
Copernicus ERA5-Land monthly averages at 5 vineyard points (Vineyard point 1, 280 m; Vineyard point 2, 539 m; Vineyard point 3, 203 m; Vineyard point 4, 134 m; Vineyard point 5, 224 m), moved to each point's height from the model's terrain. Indices that need daily data are not captured yet. How the climate figures are made.
Lower confidence:Monthly reanalysis in moderately complex terrain; not yet checked against a weather station.
Closest climates in the database
Picked by the data, not by hand: the profiles nearest on season warmth (counted twice), degree days, rain, ripening-month nights and day–night range. Neighbours within 30 km are left out, as they share the same weather.
1. SerrapetronaVery similarCompared with Terre di Offida: same season warmth, similar rain.
2. Vernaccia di SerrapetronaVery similarCompared with Terre di Offida: same season warmth, similar rain.
3. Pla de BagesVery similarCompared with Terre di Offida: same season warmth, similar rain.
Growing-season temperature
Growing degree days
Growing-season rain
03 · Year by year
35 vintages
Each column is one growing season: heat above or below the 1991–2020 average, and rain at harvest. Pick a year for the details.
Warmer than averageCooler than averageHarvest rain (Sep–Oct)Average harvest rain, 158 mm
2025
- Growing-season temp.
- Growing degree days
- Harvest rain
- Growing-season rain
- September nights
- Hot days and frosts
Seasons are labelled by harvest year (April–October). Year-to-year changes from ERA5-Land; tested against station records in Alto Adige (r = 0.94 for season temperature at Bolzano). Rain varies more locally, so treat single-season rain with some caution. Vintage ratings, harvest dates and frost or hail events have places in the data model but are not loaded yet.
04 · Where the numbers come from
Sources
- A geospatial inventory of regulatory information for wine protected designations of origin in Europe · Candiago et al., Scientific Data 9, 394 (2022); Eurac Research · CC0
- Quality wines in Italy and France: a dataset of PDO specifications · figshare 25393261 · CC BY 4.0
- ERA5-Land monthly averaged data (reanalysis-era5-land-monthly-means) · Copernicus Climate Change Service (C3S), Climate Data Store · CC BY 4.0 (Copernicus licence)
- OpenStreetMap vineyard areas (landuse=vineyard), from Geofabrik country extracts · OpenStreetMap contributors · ODbL 1.0
- Copernicus DEM GLO-90 (AWS open data tiles) · European Space Agency / Copernicus · Copernicus DEM licence
- Disciplinare di produzione: Terre di Offida (version published by MASAF up to May 2023, via the Internet Archive; later amendments not yet included) · Ministero dell'agricoltura, della sovranità alimentare e delle foreste (MASAF) · Official act
- Appellation nesting worked out from boundaries (pipeline/build_nesting.py) · Vinous, from the Eurac PDO boundaries · CC0 (source data)
- Climate profiles calculated by Vinous: method
Still to check (3)
- Generated from EU reference data: check against the current product specification.
- From the specification: Passito and Vino santo grapes are dried to at least 260 g/l sugar (Vino santo only indoors, pressed 1 December to 31 March) and fermented and matured in wood of at most 500 litres; both range from dry to sweet. Spumante is made by natural re-fermentation (method not specified) with at least 6 months' elaboration, from dosage zero to abboccato. Vinification must be in Ascoli Piceno or Fermo provinces; drying and later steps for passito and Vino santo in the zone.
- National tier (DOC/DOCG) not captured yet; rules extracted from the specification text.