Regions › Europe › Germany
Germany. Growing season April–October, harvest usually September–October. 26 vintages of weather, 2000–2025.
Photo: Gerda Arendt, CC BY-SA 4.0, via Wikimedia Commons
Over the 30 growing seasons from 1991 to 2020, Rheingau's vines saw on average 1,140 growing degree days between April and October. That puts it in Winkler region I, close in heat and rain to Champagne, Willamette Valley and Mosel. In a typical year about 362 mm of rain falls in the growing season, 103 mm of it in September–October.
Since 2000 the warmest season was 2018 (+36% against normal) and the coolest 2010 (-14%). The wettest harvest window was 2022, with 192 mm against a normal 103 mm.
The last 10 vintages (2016–2025) averaged +13% against the 1991–2020 normal, compared with +3% for 2000–2009; 9 of those 10 seasons were warmer than normal by more than 3%.
Growing degree days (base 10°C) for each season. The dashed line is the 1991–2020 normal (1,140 GDD) and the shaded band one standard deviation either side: about two years in three fall inside it.
Full bar: rain over the whole growing season. Dark part: rain in the harvest window (September–October). The line is the normal season total, 362 mm.
Apr–Oct 2025
Much warmer
Hot months: Apr +2.1° May +2.2° Jun +4.1° Aug +2.9°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 6 of 26 for heat · Winkler I
Apr–Oct 2024
Much warmer
Hot months: Aug +2.1°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 7 of 26 for heat · Winkler I
Apr–Oct 2023
Much warmer
Hot months: Jun +3.9° Sep +4.5° Oct +2.9°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 4 of 26 for heat · Winkler I
Apr–Oct 2022
Much warmer
Hot months: May +2.8° Jun +2.9° Jul +2.2° Aug +4.0° Oct +3.6°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 2 of 26 for heat · Winkler II
Apr–Oct 2021
Much cooler
Hot months: Jun +2.2°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 25 of 26 for heat · Winkler I
Apr–Oct 2020
Much warmer
Hot months: Apr +3.5° Aug +2.3° Sep +2.5°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 8 of 26 for heat · Winkler I
Apr–Oct 2019
Much warmer
Hot months: Jun +4.6°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 9 of 26 for heat · Winkler I
Apr–Oct 2018
Much warmer
Hot months: Apr +3.8° May +3.1° Jul +3.5° Aug +2.4° Sep +2.6° Oct +2.9°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 1 of 26 for heat · Winkler II
Apr–Oct 2017
Warmer
Hot months: Jun +2.2°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 13 of 26 for heat · Winkler I
Apr–Oct 2016
Warmer
Hot months: Sep +4.0°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 15 of 26 for heat · Winkler I
Apr–Oct 2015
Near normal
Hot months: Jul +2.4° Aug +2.2°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 16 of 26 for heat · Winkler I
Apr–Oct 2014
Warmer
Hot months: Apr +2.2° Oct +2.1°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 14 of 26 for heat · Winkler I
Apr–Oct 2013
Much cooler
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 24 of 26 for heat · Winkler I
Apr–Oct 2012
Cooler
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 21 of 26 for heat · Winkler I
Apr–Oct 2011
Warmer
Hot months: Apr +4.0° May +2.8° Sep +2.3°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 11 of 26 for heat · Winkler I
Apr–Oct 2010
Much cooler
Hot months: Jul +2.4°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 26 of 26 for heat · Winkler I
Apr–Oct 2009
Warmer
Hot months: Apr +3.2°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 12 of 26 for heat · Winkler I
Apr–Oct 2008
Cooler
Hot months: May +2.5°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 19 of 26 for heat · Winkler I
Apr–Oct 2007
Near normal
Hot months: Apr +5.2°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 18 of 26 for heat · Winkler I
Apr–Oct 2006
Much warmer
Hot months: Jul +5.5° Sep +3.8° Oct +2.9°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 5 of 26 for heat · Winkler I
Apr–Oct 2005
Warmer
Hot months: Sep +2.6° Oct +3.0°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 10 of 26 for heat · Winkler I
Apr–Oct 2004
Cooler
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 22 of 26 for heat · Winkler I
Apr–Oct 2003
Much warmer
Hot months: Jun +4.4° Aug +5.0° Sep +2.2°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 3 of 26 for heat · Winkler I
Apr–Oct 2002
Cooler
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 23 of 26 for heat · Winkler I
Apr–Oct 2001
Near normal
Hot months: Oct +3.3°
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 17 of 26 for heat · Winkler I
Apr–Oct 2000
Cooler
No month ran 2°C above its normal high
Bars: mean daily high each month (red = 2°C or more above normal, blue = that much below). Line: the 1991–2020 normal.
Rank 20 of 26 for heat · Winkler I
| Vintage | GDD | vs normal | Season rain | Harvest rain | Hottest month (mean high) |
|---|---|---|---|---|---|
| 2025 | 1,320 | +15% | 357 mm | 164 mm | June 27.3°C |
| 2024 | 1,290 | +13% | 500 mm | 136 mm | August 26.4°C |
| 2023 | 1,370 | +20% | 406 mm | 122 mm | June 27.1°C |
| 2022 | 1,420 | +25% | 407 mm | 192 mm | August 28.3°C |
| 2021 | 1,010 | -12% | 490 mm | 73 mm | June 25.4°C |
| 2020 | 1,270 | +11% | 264 mm | 94 mm | August 26.6°C |
| 2019 | 1,260 | +11% | 352 mm | 128 mm | June 27.8°C |
| 2018 | 1,550 | +36% | 222 mm | 36 mm | July 28.3°C |
| 2017 | 1,190 | +5% | 376 mm | 88 mm | June 25.4°C |
| 2016 | 1,180 | +4% | 400 mm | 94 mm | July 24.4°C |
| 2015 | 1,150 | +1% | 288 mm | 115 mm | July 27.2°C |
| 2014 | 1,190 | +4% | 443 mm | 95 mm | July 25.0°C |
| 2013 | 1,030 | -10% | 456 mm | 147 mm | July 26.2°C |
| 2012 | 1,060 | -7% | 410 mm | 115 mm | August 25.4°C |
| 2011 | 1,220 | +7% | 287 mm | 51 mm | August 23.7°C |
| 2010 | 990 | -14% | 405 mm | 102 mm | July 27.2°C |
| 2009 | 1,210 | +6% | 374 mm | 74 mm | August 25.6°C |
| 2008 | 1,090 | -4% | 340 mm | 103 mm | July 24.9°C |
| 2007 | 1,130 | -1% | 412 mm | 72 mm | June 23.7°C |
| 2006 | 1,360 | +19% | 369 mm | 116 mm | July 30.3°C |
| 2005 | 1,220 | +7% | 344 mm | 88 mm | June 24.8°C |
| 2004 | 1,050 | -8% | 344 mm | 81 mm | August 24.7°C |
| 2003 | 1,380 | +21% | 275 mm | 91 mm | August 29.3°C |
| 2002 | 1,050 | -8% | 388 mm | 120 mm | June 24.6°C |
| 2001 | 1,140 | -0% | 360 mm | 108 mm | August 25.0°C |
| 2000 | 1,070 | -6% | 450 mm | 129 mm | August 24.1°C |
| 1991–2020 | 1,140 | ±12% (1 SD) | 362 mm | 103 mm |
The closest matches on this site by normal heat and season rain. Similar weather is one ingredient; soils, slopes and grapes differ.
