Vintage weather atlas
2016 across wine regions
Compare growing-season heat and rain with the 1991–2020 average. These regional weather records describe the season, not wine quality.
Last Updated August 20, 2026 · Data through July 14, 2026 · 52 of 52 regions
Regional departures
Growing-season values compared with 1991–2020. Rows are ordered warmest to coolest.
Scroll horizontally for all columns and vertically for more regions.
| Region | Temperature | GDD | Rain | Season summary |
|---|---|---|---|---|
| Central SicilyItaly | +0.9°C | +211 GDD | -47 mm | Frost exposure can vary sharply from one site to the next. |
| Maipo ValleyChile | +0.9°C | +198 GDD | +19 mm | No single weather pattern stands out in the regional record. |
| Hunter ValleyAustralia | +0.9°C | +206 GDD | -28 mm | Repeated hot days can speed ripening and put vines under stress. |
| MendozaArgentina | +0.7°C | +150 GDD | -49 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Bierzo & ValdeorrasSpain | +0.7°C | +123 GDD | -0 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Paso Robles & Santa Barbara CountyUnited States | +0.6°C | +141 GDD | -57 mm | No single weather pattern stands out in the regional record. |
| Willamette ValleyUnited States | +0.6°C | +85 GDD | +117 mm | Frequent rain can mean more canopy growth and more disease pressure. Rain close to harvest can raise rot pressure and shorten the picking window. |
| Yakima & Central Columbia BasinUnited States | +0.6°C | +75 GDD | +40 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Walla Walla ValleyUnited States | +0.6°C | +32 GDD | +34 mm | Rain close to harvest can raise rot pressure and shorten the picking window. A freeze after budbreak can damage new growth and reduce the crop. |
| Santa Cruz MountainsUnited States | +0.5°C | +111 GDD | +65 mm | Rain close to harvest can raise rot pressure and shorten the picking window. |
| TasmaniaAustralia | +0.5°C | +76 GDD | -9 mm | Frost exposure can vary sharply from one site to the next. |
| Southern OregonUnited States | +0.5°C | +57 GDD | +114 mm | Frequent rain can mean more canopy growth and more disease pressure. Rain close to harvest can raise rot pressure and shorten the picking window. Frost exposure can vary sharply from one site to the next. |
| CataloniaSpain | +0.5°C | +109 GDD | -39 mm | No single weather pattern stands out in the regional record. |
| Columbia GorgeUnited States | +0.5°C | +15 GDD | +16 mm | Rain close to harvest can raise rot pressure and shorten the picking window. Frost exposure can vary sharply from one site to the next. |
| StellenboschSouth Africa | +0.5°C | +113 GDD | -131 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Jerez & SherrySpain | +0.5°C | +105 GDD | +85 mm | No single weather pattern stands out in the regional record. |
| Southeast SpainSpain | +0.4°C | +93 GDD | -5 mm | No single weather pattern stands out in the regional record. |
| Rías BaixasSpain | +0.3°C | +69 GDD | -60 mm | No single weather pattern stands out in the regional record. |
| Languedoc, Roussillon & ProvenceFrance | +0.3°C | +63 GDD | -54 mm | No single weather pattern stands out in the regional record. |
| CorsicaFrance | +0.3°C | +30 GDD | -52 mm | Frost exposure can vary sharply from one site to the next. |
| RiojaSpain | +0.3°C | +56 GDD | -114 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. Frost exposure can vary sharply from one site to the next. |
| Yarra Valley & Mornington PeninsulaAustralia | +0.3°C | +55 GDD | +93 mm | Rain close to harvest can raise rot pressure and shorten the picking window. |
| Napa ValleyUnited States | +0.3°C | +53 GDD | +14 mm | Rain close to harvest can raise rot pressure and shorten the picking window. |
| TuscanyItaly | +0.3°C | +46 GDD | +9 mm | No single weather pattern stands out in the regional record. |
| Trentino–Alto AdigeItaly | +0.2°C | +27 GDD | -5 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Castilla y LeónSpain | +0.2°C | +45 GDD | -29 mm | Repeated hot days can speed ripening and put vines under stress. A freeze after budbreak can damage new growth and reduce the crop. |
| SardiniaItaly | +0.2°C | +48 GDD | -41 mm | Frost exposure can vary sharply from one site to the next. |
| LodiUnited States | +0.2°C | +48 GDD | +38 mm | Rain close to harvest can raise rot pressure and shorten the picking window. |
| MarlboroughNew Zealand | +0.2°C | +27 GDD | +237 mm | Frequent rain can mean more canopy growth and more disease pressure. Rain close to harvest can raise rot pressure and shorten the picking window. |
| Heathcote & RutherglenAustralia | +0.2°C | +32 GDD | +126 mm | Frequent rain can mean more canopy growth and more disease pressure. |
| PiedmontItaly | +0.2°C | +27 GDD | -91 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. A freeze after budbreak can damage new growth and reduce the crop. |
| DouroPortugal | +0.1°C | +36 GDD | +106 mm | Frequent rain can mean more canopy growth and more disease pressure. |
| EtnaItaly | +0.1°C | +20 GDD | +141 mm | Frequent rain can mean more canopy growth and more disease pressure. Frost exposure can vary sharply from one site to the next. |
| Southern ApenninesItaly | +0.1°C | +16 GDD | +125 mm | Frequent rain can mean more canopy growth and more disease pressure. Rain close to harvest can raise rot pressure and shorten the picking window. |
| Rhône ValleyFrance | +0.1°C | +12 GDD | -47 mm | No single weather pattern stands out in the regional record. |
| ChampagneFrance | +0.1°C | +22 GDD | +70 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Po Valley & Northeast ItalyItaly | +0.0°C | -7 GDD | +9 mm | No single weather pattern stands out in the regional record. |
| AbruzzoItaly | +0.0°C | -33 GDD | +401 mm | Frequent rain can mean more canopy growth and more disease pressure. Rain close to harvest can raise rot pressure and shorten the picking window. Frost exposure can vary sharply from one site to the next. |
| CoonawarraAustralia | +0.0°C | +5 GDD | +187 mm | Frequent rain can mean more canopy growth and more disease pressure. |
| PugliaItaly | +0.0°C | -0 GDD | +75 mm | No single weather pattern stands out in the regional record. |
| McLaren ValeAustralia | -0.1°C | -16 GDD | +213 mm | Frequent rain can mean more canopy growth and more disease pressure. |
| Adelaide HillsAustralia | -0.1°C | -18 GDD | +226 mm | Frequent rain can mean more canopy growth and more disease pressure. |
| WachauAustria | -0.1°C | +28 GDD | +147 mm | Frequent rain can mean more canopy growth and more disease pressure. Frost exposure can vary sharply from one site to the next. |
| Alsace & JuraFrance | -0.1°C | -10 GDD | +67 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Loire ValleyFrance | -0.1°C | -24 GDD | -79 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. Frost exposure can vary sharply from one site to the next. |
| MoselGermany | -0.1°C | +30 GDD | +45 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Umbria & MarcheItaly | -0.2°C | -60 GDD | +154 mm | Frequent rain can mean more canopy growth and more disease pressure. |
| BordeauxFrance | -0.2°C | -49 GDD | -112 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Barossa, Eden & Clare ValleysAustralia | -0.3°C | -66 GDD | +161 mm | Frequent rain can mean more canopy growth and more disease pressure. |
| BurgundyFrance | -0.4°C | -41 GDD | +83 mm | A freeze after budbreak can damage new growth and reduce the crop. |
| Sonoma & MendocinoUnited States | -0.6°C | -130 GDD | +113 mm | Frequent rain can mean more canopy growth and more disease pressure. Rain close to harvest can raise rot pressure and shorten the picking window. |
| Margaret River & Great SouthernAustralia | -0.9°C | -226 GDD | +57 mm | Rain close to harvest can raise rot pressure and shorten the picking window. |
Methods, limitations, and sources
How this comparison is made
Each row uses the region’s configured growing-season window and only appears when its annual summary passes the shared source, regional-rule, baseline, metric, and 95% window-completeness checks. GDD means growing degree days, a measure of accumulated warmth above each region’s published base temperature.
The map colors show mean-temperature departure from 1991–2020. GDD and rain departures use the same baseline. “Last Updated” is the oldest calculation time among the displayed rows; “Data through” is the oldest source date. This conservative rule prevents a partly refreshed atlas from appearing newer than all of its regions.
Limits
These are regional weather summaries, not vineyard measurements. Region outlines represent approximate wine-growing and weather-analysis areas, not official boundaries or individual vineyards. A regional pattern can hide meaningful differences in elevation, exposure, storms, soils, vineyard practice, and harvest timing. The weather record alone does not determine wine quality.
Source
Weather & Vines combined regional series. Combined records use eligible NOAA GHCN observations where available and ERA5 reanalysis for the regional grid and for locations or dates without eligible station coverage.