Vinous

AOC · Appellation profile

Chablis

25,091 haProduction zone
2Wines in the rules
15.3 °CGrowing season · intermediate
IbWinkler region

What is made here

Wine colours

The only colour the rules allow.

100% White

Where it is

Chablis in France

Latitude
47.7°–48.0° N
Vineyard altitude
154 m to 278 m
Delimited vineyard land
5,282 ha

Lies within
Petit Chablis, Crémant de Bourgogne

Contains 1 appellation (outlined on the zone map)
Chablis grand cru

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.

01 · What the law says

The rules

Limits on grapes, yields, ripeness and ageing that every wine labelled Chablis must meet.

2 wines in the rules.
WineMain grape(s)Max yield
t/ha		Max wine
hl/ha		Yield ceiling
hl/ha		Grape sugar
min. g/l		Grape ripeness
min. % pot. alc.		After enrichment
max. % alc.		Sugar
max. g/l
Chablis 100% Chardonnay10.5607516110133
Chablis Premier Cru 100% Chardonnay10587317010.513.53

From the official production rules (cahier des charges). Hover a figure to see the clause it comes from. A dash means the rules set no figure, or it is not captured yet.

In the vineyard and cellar: rules for every wine

5,500
Vines per hectare, minimum
Training
Systems allowed
cordon de Royat; taille Guyot simple; taille Guyot double; taille Chablis
Prohibited
Irrigation

02 · Climate fingerprint

The climate

The growing season averages 15.3 °C, intermediate on Gregory Jones's scale, with 1,162 growing degree days (Winkler Ib).

The average year  1991–2020, vineyards at about 235 m

Monthly mean, °CRain, mmGrowing season
3.3° 78 Jan 3.7° 66 Feb 6.8° 66 Mar 9.9° 70 Apr 13.7° 80 May 17.2° 61 Jun 19.5° 61 Jul 19.5° 61 Aug 15.7° 65 Sep 11.8° 78 Oct 6.9° 79 Nov 4.0° 89 Dec
Growing-season temperature
15.3 °C
Intermediate · 15–17 °C (Jones)
Growing degree days
1,162
Region Ib: 1,111–1,388 degree days
Growing-season rain
476 mm
Of 854 mm a year
Harvest rain
143 mm
September–October

Copernicus ERA5-Land monthly averages at 5 vineyard points (Vineyard point 1, 213 m; Vineyard point 2, 246 m; Vineyard point 3, 150 m; Vineyard point 4, 281 m; Vineyard point 5, 283 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.

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. PfalzVery similarCompared with Chablis: same season warmth, similar rain.
2. MoravaVery similarCompared with Chablis: same season warmth, similar rain.
3. Rosé des RiceysVery similarCompared with Chablis: same season warmth, similar rain.

Growing-season temperature

Chablis
15.3 °C
Pfalz
15.3 °C
Morava
15.2 °C
Rosé des Riceys
15.3 °C

Growing degree days

Chablis
1,162
Pfalz
1,173
Morava
1,162
Rosé des Riceys
1,151

Growing-season rain

Chablis
476 mm
Pfalz
454 mm
Morava
475 mm
Rosé des Riceys
499 mm

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, 143 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

  1. 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
  2. Quality wines in Italy and France: a dataset of PDO specifications · figshare 25393261 · CC BY 4.0
  3. ERA5-Land monthly averaged data (reanalysis-era5-land-monthly-means) · Copernicus Climate Change Service (C3S), Climate Data Store · CC BY 4.0 (Copernicus licence)
  4. OpenStreetMap vineyard areas (landuse=vineyard), from Geofabrik country extracts · OpenStreetMap contributors · ODbL 1.0
  5. Copernicus DEM GLO-90 (AWS open data tiles) · European Space Agency / Copernicus · Copernicus DEM licence
  6. Cahier des charges: Chablis (Cahier des charges de l’appellation d’origine contrôlée Chablis, homologuant par arrêté du 10 septembre 2025 (AGRT2523052A) - BO n°38 du 18 septembre 2025) · Ministère de l'Agriculture (Bulletin officiel), as linked by INAO · Official act
  7. 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)
  8. Appellation nesting worked out from boundaries (pipeline/build_nesting.py) · Vinous, from the Eurac PDO boundaries · CC0 (source data)
  9. Climate profiles calculated by Vinous: method
Still to check (3)
  • Generated from EU reference data: check against the current product specification.
  • From the specification: Residual sugar may reach 4 g/l when total acidity is at least 55.10 meq/l (4.13 g/l tartaric). Premier cru wines may carry one of the listed climats (with or without 'premier cru'); these are not separate register names. Wood pieces are prohibited and the temperature of vessels during ageing must not exceed 25 °C.
  • National tier (DOC/DOCG) not captured yet; rules extracted from the specification text.