(TDB) - Spain’s 2017 grape harvest is expected to be down by nearly 20% on 2016, according to provisional estimates by the Ministry of Agriculture, surpassing previous estimates of a 15% decline in the wake of spring frosts, heatwaves and drought.

Provisionally, total production of wine and must in the current 2017/18 vintage stands at 35.6 million hectoliters, compared with 44 million hectoliters in 2016 – a 19.6% drop – according to a statement released this week by Spain’s Ministry of Agriculture and Fisheries, Food and Environment.

Based on figures from the Market Information System of the Wine Sector (INFOVI), of the 35.6 million hectoliters produced 13.6 million hectoliters has been declared as wine with Protected Designation of Origin (PDO), 3.6 million hectoliters as wine with Protected Geographical Indication (PGI), and 6.2 million hectoliters as varietal wines. The remaining wines represent 29% of total production.

Overall, production in 2017 is 19.6% lower than the previous season and 17.6% lower than the average of the previous six seasons.