What is made here
Wine colours
The only colour the rules allow.
Where it is
Znojmo in Czechia
- Latitude
- 48.7°–49.2° N
- Vineyard altitude
- 212 m to 337 m
- Production zone
- 35,306 ha
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.
01 · What the law says
The rules
Limits on grapes, yields, ripeness and ageing that every wine labelled Znojmo must meet.
Other varieties allowed
Besides the main grapes, the rules allow these varieties in some wines. Grape names link where a profile exists.
3 varieties · Znojmo víno
Ryzlink Rýnský, Sauvignon Blanc, Veltlínské Zelené
02 · Climate fingerprint
The climate
The growing season averages 15.2 °C, intermediate on Gregory Jones's scale, with 1,163 growing degree days (Winkler Ib).
The average year 1991–2020, vineyards at about 320 m
Monthly mean, °CRain, mmGrowing season
- Growing-season temperature
- 15.2 °C
- Intermediate · 15–17 °C (Jones)
- Growing degree days
- 1,163
- Region Ib: 1,111–1,388 degree days
- Growing-season rain
- 468 mm
- Of 663 mm a year
- Harvest rain
- 114 mm
- September–October
Copernicus ERA5-Land monthly averages at 5 vineyard points (Vineyard point 1, 248 m; Vineyard point 2, 549 m; Vineyard point 3, 329 m; Vineyard point 4, 204 m; Vineyard point 5, 269 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. MoravaVery similarCompared with Znojmo: same season warmth, similar rain.
2. Hessische BergstraßeVery similarCompared with Znojmo: same season warmth, similar rain.
3. Coteaux champenoisVery similarCompared with Znojmo: 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, 114 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
- 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
- Product specification: Znojmo (CHOP_VOC_Znojmo_SPECIFIKACE_final.pdf) · National authority, as filed in the EU register (eAmbrosia) · Official document
- 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: VOC Znojmo (víno originální certifikace) white wine from Grüner Veltliner, Riesling and Sauvignon only, as single varieties or blends: a three-variety blend needs at least 40 % Sauvignon, 30 % Veltlínské zelené and 20 % Ryzlink rýnský, a two-variety blend at least 50 % of each. Yield is also limited to 2.5 kg of grapes per vine; alcohol is capped at 13.9 % vol; tartaric acid ('kyselina vinná') must be 4.9-10 g/l; barrique ageing and long lees ageing (sur lie) are prohibited, malolactic fermentation is allowed; bottling only by VOC Znojmo members within the Znojmo subregion, in bottles of at most 0.75 l.
- National tier (DOC/DOCG) not captured yet; rules extracted from the specification text.