2020 Chile Vintage Report by Valley 

Elqui harvest report 2020 
A warm and dry year with some difficulties in terms of water access. Pisco production is expected to be down by a fifth.   

Limarí harvest report 2020 
Warm and dry year with no reports of frost. However water shortages caused a significant reduction in yields (up to 40% in some areas).   

Choapa vintage report 2020 
A really hot vintage, which saw lots of dehydrated grapes and a heat wave that caused losses of up to 50% in some areas.   

Aconcagua vintage report 2020 
Warm and early year, with no reports of frost. Veraison was 15 days early in most regions and a hot summer meant that the harvest was between 15 and 20 days earlier than normal too. Production is down by 10% to 20% compared to last year due to lower water availability.   

San Antonio & Casablanca harvest report 2020 
A very dry winter, warm spring and very hot summer. September and October frosts affected most regions within San Antonio and Casablanca, and producers reported losses of up to 30% (and even greater losses in some cases). Temperatures in Leyda were recorded as low as -5°C on 2 October. The varieties worst affected by the frosts were Chardonnay, followed by Sauvignon Blanc and Pinot Noir. Lower yields and a hot summer caused much earlier harvest dates.

Maipo vintage report 2020 
Early, dry and hot vintage. Some frosts were reported in Pirque and Melipilla, in particular, although damage was mostly in early-budding varieties Chardonnay, Sauvignon Blanc and Pinot Noir, which are much less common in Maipo. Flowering was up to two weeks early, and the harvest was two to three weeks early due to the hot weather. Restricted water supplies also caused a drop in production of up to a fifth. Cachapoal vintage report 2020 A hot, dry vintage that came at least two weeks early. Chardonnay and Sauvignon Blanc were affected by the frosts (with production down by up to 30%) and Merlot was also affected to a lesser extent (with a 10% drop in yield). Drought also significantly hampered yields this year, reducing the production of Chardonnay and Cabernet Sauvignon and several producers abandoned certain sectors of their vineyards this year for lack of water.   

Colchagua vintage report 2020 
A very dry and hot year with barely any rain, which caused significant drought problems. Both flowering and harvest were more than two weeks early in most sectors, and frosts affected some vineyards quite severely. The combination of drought and frost means some producers are reporting major losses of over a third of their normal production levels. 

Curicó harvest report 2020 Dry, hot and early vintage which saw some record high temperatures. Water shortages and drought caused significant problems for producers, especially in Sagrada Familia and Romeral. Production was also down because of frosts (which mainly affected Chardonnay, Sauvignon Blanc, Syrah and Cabernet Sauvignon), and in general producers are reporting a drop in production of between 10% and 30%.   

Maule vintage report 2020 Dry and hot year where the drought was particularly acute for dry-farmed regions which received very little rain this year. Flowering was up to 20 days early in some sectors, heat waves were an issue for many vineyards and some sectors were also affected by frost, resulting in production being down by between 10% and 25%.   

Biobío & Itata vintage report 2020 A much drier year than normal and a warm spring brought flowering forward by up to 20 days in some regions. Frost in November also caused significant losses in some parts of Itata in particular. Dry-farmed regions were hit hard by the lack of rain, and there was also insufficient water for irrigation, causing a loss in production of up to a third. 
 

Source: https://southamericawineguide.com/chile-vintage-2020-report-wine/