Vintage weather atlas
2024 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 | +2.3°C | +516 GDD | -6 mm | Warm weather can speed ripening and leave grapes with less acidity. Repeated hot days can speed ripening and put vines under stress. |
| Southern ApenninesItaly | +2.1°C | +453 GDD | -69 mm | Warm weather can speed ripening and leave grapes with less acidity. Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| AbruzzoItaly | +1.8°C | +360 GDD | +55 mm | Warm weather can speed ripening and leave grapes with less acidity. Rain close to harvest can raise rot pressure and shorten the picking window. |
| Umbria & MarcheItaly | +1.8°C | +387 GDD | +74 mm | Warm weather can speed ripening and leave grapes with less acidity. Repeated hot days can speed ripening and put vines under stress. Rain close to harvest can raise rot pressure and shorten the picking window. |
| Heathcote & RutherglenAustralia | +1.7°C | +396 GDD | -70 mm | Warm weather can speed ripening and leave grapes with less acidity. Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| PugliaItaly | +1.6°C | +377 GDD | -62 mm | Warm weather can speed ripening and leave grapes with less acidity. Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| WachauAustria | +1.6°C | +333 GDD | +134 mm | Warm weather can speed ripening and leave grapes with less acidity. Frequent rain can mean more canopy growth and more disease pressure. Rain close to harvest can raise rot pressure and shorten the picking window. |
| MendozaArgentina | +1.5°C | +303 GDD | -209 mm | Warm weather can speed ripening and leave grapes with less acidity. Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| EtnaItaly | +1.5°C | +311 GDD | -14 mm | Warm weather can speed ripening and leave grapes with less acidity. Repeated hot days can speed ripening and put vines under stress. |
| CorsicaFrance | +1.3°C | +257 GDD | +111 mm | Warm weather can speed ripening and leave grapes with less acidity. Frequent rain can mean more canopy growth and more disease pressure. Rain close to harvest can raise rot pressure and shorten the picking window. |
| Adelaide HillsAustralia | +1.3°C | +310 GDD | -151 mm | Warm weather can speed ripening and leave grapes with less acidity. Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| LodiUnited States | +1.3°C | +299 GDD | -27 mm | Warm weather can speed ripening and leave grapes with less acidity. Repeated hot days can speed ripening and put vines under stress. |
| Barossa, Eden & Clare ValleysAustralia | +1.3°C | +298 GDD | -137 mm | Warm weather can speed ripening and leave grapes with less acidity. 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. |
| McLaren ValeAustralia | +1.2°C | +277 GDD | -167 mm | Warm weather can speed ripening and leave grapes with less acidity. Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| SardiniaItaly | +1.1°C | +247 GDD | -56 mm | Warm weather can speed ripening and leave grapes with less acidity. Repeated hot days can speed ripening and put vines under stress. |
| TuscanyItaly | +1.1°C | +237 GDD | +171 mm | Warm weather can speed ripening and leave grapes with less acidity. Frequent rain can mean more canopy growth and more disease pressure. Rain close to harvest can raise rot pressure and shorten the picking window. |
| Yarra Valley & Mornington PeninsulaAustralia | +1.1°C | +267 GDD | -124 mm | Warm weather can speed ripening and leave grapes with less acidity. Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| CoonawarraAustralia | +1.1°C | +263 GDD | -72 mm | Warm weather can speed ripening and leave grapes with less acidity. 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. |
| Yakima & Central Columbia BasinUnited States | +1.1°C | +211 GDD | -57 mm | Warm weather can speed ripening and leave grapes with less acidity. Repeated hot days can speed ripening and put vines under stress. A freeze after budbreak can damage new growth and reduce the crop. |
| Southeast SpainSpain | +1.0°C | +234 GDD | -7 mm | Warm weather can speed ripening and leave grapes with less acidity. Repeated hot days can speed ripening and put vines under stress. |
| Po Valley & Northeast ItalyItaly | +1.0°C | +212 GDD | +382 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. |
| Languedoc, Roussillon & ProvenceFrance | +0.9°C | +205 GDD | +81 mm | Rain close to harvest can raise rot pressure and shorten the picking window. |
| TasmaniaAustralia | +0.9°C | +172 GDD | -157 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. |
| Trentino–Alto AdigeItaly | +0.9°C | +161 GDD | +273 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. A freeze after budbreak can damage new growth and reduce the crop. |
| Napa ValleyUnited States | +0.8°C | +206 GDD | -65 mm | Repeated hot days can speed ripening and put vines under stress. Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| MoselGermany | +0.8°C | +128 GDD | +186 mm | Frequent rain can mean more canopy growth and more disease pressure. Frost exposure can vary sharply from one site to the next. |
| Hunter ValleyAustralia | +0.8°C | +181 GDD | +42 mm | No single weather pattern stands out in the regional record. |
| CataloniaSpain | +0.7°C | +155 GDD | +144 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. |
| Walla Walla ValleyUnited States | +0.7°C | +114 GDD | -74 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. |
| Willamette ValleyUnited States | +0.7°C | +127 GDD | -89 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. |
| Margaret River & Great SouthernAustralia | +0.7°C | +165 GDD | -79 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Santa Cruz MountainsUnited States | +0.7°C | +151 GDD | -45 mm | No single weather pattern stands out in the regional record. |
| Alsace & JuraFrance | +0.7°C | +118 GDD | +189 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. |
| Columbia GorgeUnited States | +0.6°C | +120 GDD | -74 mm | Repeated hot days can speed ripening and put vines under stress. 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. |
| MarlboroughNew Zealand | +0.6°C | +119 GDD | -31 mm | No single weather pattern stands out in the regional record. |
| Rhône ValleyFrance | +0.6°C | +128 GDD | +124 mm | Frequent rain can mean more canopy growth and more disease pressure. |
| RiojaSpain | +0.6°C | +107 GDD | +139 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. |
| Maipo ValleyChile | +0.5°C | +105 GDD | -108 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| ChampagneFrance | +0.5°C | +77 GDD | +205 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. |
| Southern OregonUnited States | +0.5°C | +102 GDD | -73 mm | Repeated hot days can speed ripening and put vines under stress. 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 | +0.4°C | +91 GDD | +80 mm | Rain close to harvest can raise rot pressure and shorten the picking window. |
| Jerez & SherrySpain | +0.4°C | +88 GDD | +133 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. |
| Rías BaixasSpain | +0.4°C | +66 GDD | +228 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. |
| Castilla y LeónSpain | +0.3°C | +56 GDD | +35 mm | Repeated hot days can speed ripening and put vines under stress. Frost exposure can vary sharply from one site to the next. |
| Loire ValleyFrance | +0.3°C | +38 GDD | +162 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. |
| PiedmontItaly | +0.3°C | +59 GDD | +276 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. |
| Bierzo & ValdeorrasSpain | +0.3°C | +38 GDD | +58 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. |
| StellenboschSouth Africa | +0.2°C | +39 GDD | -126 mm | Less rain often lowers disease pressure, but vines may depend more on stored soil water or irrigation. |
| Paso Robles & Santa Barbara CountyUnited States | +0.1°C | +32 GDD | +30 mm | No single weather pattern stands out in the regional record. |
| Sonoma & MendocinoUnited States | -0.0°C | +3 GDD | -59 mm | No single weather pattern stands out in the regional record. |
| BordeauxFrance | -0.3°C | -73 GDD | +200 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. |
| BurgundyFrance | -0.4°C | -59 GDD | +204 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. |
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.