What is made here
Wine colours
Colours the rules allow. Pick a colour to filter the rules and grapes below.
Where it is
Ajaccio in France
- Latitude
- 41.7°–42.3° N
- Vineyard altitude
- 27 m to 389 m
- Delimited vineyard land
- 23,219 ha
Lies within
Corse
Worked out from the boundaries (smallest container first). Uses the delimited parcels where INAO publishes them.
The delimited vineyard parcels themselves, so the shape is patchy: only land within them may grow the wine. Boundary: INAO parcel delimitation (Licence Ouverte); nearby parcels drawn as one block, with less detail for larger appellations. 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 Ajaccio must meet.
Blend rules
Ajaccio
- ≥ 80% Vermentino · Main grape
- ≤ 10% biancu gentile / codivarta / genovese · Allowed
- – ugni blanc · Allowed
Blend rules
Ajaccio rouge
- ≥ 60% barbaroux / nielluccio / sciaccarello / vermentino · Main grape
- ≥ 40% sciaccarello · Main grape
- ≤ 15% Carignan · Allowed
- ≤ 10% aleatico / carcajolo / morrastel · Allowed
- – cinsaut / grenache · Allowed
Blend rules
Ajaccio rosé
- ≥ 60% barbaroux / nielluccio / sciaccarello / vermentino · Main grape
- ≥ 40% sciaccarello · Main grape
- ≤ 15% Carignan · Allowed
- ≤ 10% aleatico / carcajolo / morrastel · Allowed
- – cinsaut / grenache · Allowed
Other varieties allowed
Besides the main grapes, the rules allow these varieties in some wines. Grape names link where a profile exists.
6 varieties · Ajaccio, Ajaccio rouge, Ajaccio rosé
4 varieties · Ajaccio
Biancu Gentile, Codivarta, Genovèse, Ugni Blanc
In the vineyard and cellar: rules for every wine
4,000
Vines per hectare, minimum
Training
Systems allowed
gobelet; cordon de Royat; taille Guyot simple; taille Guyot double
Permitted, with limits
Irrigation
Not allowed
Enrichment (chaptalisation)
02 · Climate fingerprint
The climate
The growing season averages 19.8 °C, hot on Gregory Jones's scale, with 2,106 growing degree days (Winkler IV).
The average year 1991–2020, vineyards at about 138 m
Monthly mean, °CRain, mmGrowing season
- Growing-season temperature
- 19.8 °C
- Hot · 19–21 °C (Jones)
- Growing degree days
- 2,106
- Region IV: 1,944–2,221 degree days
- Growing-season rain
- 381 mm
- Of 878 mm a year
- Harvest rain
- 162 mm
- September–October
Copernicus ERA5-Land monthly averages at 5 vineyard points (Vineyard point 1, 67 m; Vineyard point 2, 21 m; Vineyard point 3, 344 m; Vineyard point 4, 33 m; Vineyard point 5, 226 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. ΡαψάνηVery similarCompared with Ajaccio: same season warmth, similar rain.
2. Val di Cornia RossoVery similarCompared with Ajaccio: same season warmth, similar rain.
3. Val di CorniaVery similarCompared with Ajaccio: 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, 162 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
- Cahier des charges: Ajaccio (Cahier des charges modifié de l'AOC Ajaccio - BO n°50 du 12 décembre 2019) · Ministère de l'Agriculture (Bulletin officiel), as linked by INAO · Official act
- Délimitation parcellaire des AOC viticoles de l'INAO · Institut national de l'origine et de la qualité (INAO), via data.gouv.fr · Licence Ouverte / Open Licence (Etalab)
- 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 (4)
- Generated from EU reference data: check against the current product specification.
- Irrigation recorded as 'Allowed/Prohibited'.
- From the specification: The register lists one name but the text governs white, red and rosé, so red and rosé are added. Grape limits apply to the holding's vineyard except the vermentino 80% and sciaccarello 40% minimums, which also apply to the blend; red ripeness is 189 g/l for cinsaut and 207 g/l for other varieties (both 12%), irrigated parcels are limited to 6000 kg/ha, and maximum residual sugar is 4 g/l (5 g/l above 14% natural alcohol).
- National tier (DOC/DOCG) not captured yet; rules extracted from the specification text.