Climate by region
Riesling
Riesling appears from cool maritime sites to dry continental valleys, with large differences in autumn warmth and rainfall.
Regional figures use 1991–2020 from the combined regional record · updated through Aug 20, 2026.
Climate by region
1991–2020 averages calculated from complete combined regional records.
Scroll horizontally to view all columns.
| Region | Growing season | Mean temperature | GDD | Rain | Hot days | Harvest rain | Last updated |
|---|---|---|---|---|---|---|---|
| Barossa, Eden & Clare ValleysAustralia | Sep 1–Apr 30 | 18.2°C | 1989 GDD | 249.9 mm | 16.4 | 73.3 mm | Aug 20, 2026 |
| Margaret River & Great SouthernAustralia | Sep 1–Apr 30 | 17.4°C | 1801 GDD | 285.8 mm | 3.1 | 93.8 mm | Aug 20, 2026 |
| TasmaniaAustralia | Sep 1–Apr 30 | 11.5°C | 574 GDD | 620.6 mm | 0.0 | 197.6 mm | Aug 20, 2026 |
| Alsace & JuraFrance | Apr 1–Oct 31 | 15.7°C | 1292 GDD | 634.0 mm | 5.4 | 174.8 mm | Aug 20, 2026 |
| Columbia GorgeUnited States | Apr 1–Oct 31 | 14.5°C | 1099 GDD | 324.4 mm | 13.0 | 126.3 mm | Aug 20, 2026 |
| Southern OregonUnited States | Apr 1–Oct 31 | 15.9°C | 1323 GDD | 309.5 mm | 21.2 | 92.5 mm | Aug 20, 2026 |
| Willamette ValleyUnited States | Mar 15–Oct 31 | 15.1°C | 1261 GDD | 474.8 mm | 11.4 | 148.5 mm | Aug 20, 2026 |
| Yakima & Central Columbia BasinUnited States | Mar 15–Oct 31 | 16.4°C | 1586 GDD | 131.7 mm | 14.8 | 38.0 mm | Aug 20, 2026 |
References and alternate names
- Washington State University Viticulture & Enology: growing degree days, base temperature, and season heat accumulation reviewed 2026-08-14
- UC IPM: Botrytis bunch rot, late-season moisture and rot risk reviewed 2026-08-14
- Australian Wine Research Institute: heatwaves and their effects on grapevines reviewed 2026-08-14
- VIVC cultivar passport: Riesling Weiss (Riesling) reviewed 2026-08-11
Search recognizes the alternate names listed above.