What is made here
Wine colours
Colours the rules allow. Pick a colour to filter the rules and grapes below.
Where it is
Portimão in Portugal
- Latitude
- 37.1°–37.3° N
- Vineyard altitude
- 2 m to 57 m
- Production zone
- 18,206 ha
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 Portimão must meet.
Blend rules
Portimão vinho tinto
- ≥ 70% Castelão / Negra-Mole / Trincadeira · Main grape
- – Red varieties listed in the specification · Others allowed
Blend rules
Portimão vinho branco
- ≥ 70% Arinto / Síria · Main grape
- – White varieties listed in the specification · Others allowed
Other varieties allowed
Besides the main grapes, the rules allow these varieties in some wines. Grape names link where a profile exists.
15 varieties ·
Alicante Bouschet, Arinto, Cabernet Sauvignon, Castelão, Manteúdo, Monvedro, Moscatel Graúdo, Negra Mole, Perrum, Rabo de Ovelha, Syrah, Síria, Tempranillo, Touriga Nacional, Trincadeira
In the vineyard and cellar: rules for every wine
Training
Systems allowed
cordão (guyot); taça
02 · Climate fingerprint
The climate
The growing season averages 20.4 °C, hot on Gregory Jones's scale, with 2,232 growing degree days (Winkler V).
The average year 1991–2020, vineyards at about 31 m
Monthly mean, °CRain, mmGrowing season
- Growing-season temperature
- 20.4 °C
- Hot · 19–21 °C (Jones)
- Growing degree days
- 2,232
- Region V: 2,222 and over degree days
- Growing-season rain
- 189 mm
- Of 499 mm a year
- Harvest rain
- 92 mm
- September–October
Copernicus ERA5-Land monthly averages at 5 vineyard points (Vineyard point 1, 8 m; Vineyard point 2, 84 m; Vineyard point 3, 19 m; Vineyard point 4, 15 m; Vineyard point 5, 29 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. RiesiVery similarCompared with Portimão: same season warmth, similar rain.
2. Pago FlorentinoVery similarCompared with Portimão: same season warmth, wetter (+19 mm).
3. Casa del BlancoVery similarCompared with Portimão: same season warmth, wetter (+23 mm).
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, 92 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: Portimão (Caderno de específicações- DOPortimão.pdf) · National authority, as filed in the EU register (eAmbrosia) · Official document
- Climate profiles calculated by Vinous: method
Still to check (3)
- Generated from EU reference data: check against the current product specification.
- From the specification: Starred varieties: Castelão, Negra-Mole, Trincadeira (red); Arinto, Síria (white). Other reds: Alicante-Bouschet, Aragonez, Cabernet Sauvignon, Monvedro, Syrah, Touriga-Nacional; other whites: Manteúdo, Moscatel-Graúdo, Perrum, Rabo-de-Ovelha. Vines are trained on rows about 0.5-1 m high. The 70 % minimum for the starred varieties applies jointly to the vineyard planting (encepamento). The 60 hl/ha yield may be adjusted yearly by the IVV. Vines must be low-trained; traditional terms such as Reserva, Garrafeira and Colheita Tardia may be used but the specification gives no ageing periods for them.
- National tier (DOC/DOCG) not captured yet; rules extracted from the specification text.