Vinpro Technical Harvest Report 2026

Production trends The 2026 harvest in Trawal commenced only two days earlier than in the previous season, which can be attributed to the rapid accumulation of growing degree days from mid-December onwards (Figure OL 4) . There was, however, a slight slowdown in intake pace leading up to a warm peak around 15 and 16 February. This heat followed emergency repair work on the irrigation canal, which was out of operation from 10 to 13 February. The resulting heat shock significantly accelerated the harvest pace in the Olifants River Valley, and this tempo was maintained throughout the harvest until the end of the season. Chenin Blanc displayed a higher number of bunches with smaller berries early in the

season, which initially led to expectations of a smaller crop. In contrast, Chardonnay appeared promising from the outset. Colombar performed well with up to three bunches per shoot. Pinotage bunches set well and developed fully, although berry size was noticeably small. Adequate accumulation of chill units, good bud break, and a rapid initial growth phase all contributed positively to the final crop size. The absence of flood damage this season meant that a greater number of vineyard blocks contributed to total production. A further outcome was the recovery in production levels following the previous flood-induced dormancy period, alongside the benefits of fertilisation in these vineyards.

Grape and wine quality

Summary The 2026 season will be remembered for favourable chill unit accumulation and the rapid pace at which the season progressed in terms of growth, as well as the eventual harvest tempo. The harvest period presented several challenges, including elevated humidity and unprecedented heavy rainfall during harvest. Further notable features include late cultivars ripening earlier than expected, a significantly larger crop than initially estimated, and an eight-day heatwave in March, which placed pressure on cellar throughput capacity. Nevertheless, winemakers and producers collaborated closely and acted proactively to extract the best possible outcomes from the season.

Grape quality and analyses exceeded expected quality standards, with white juice settling particularly clear due to favourable acid and pH levels. This is largely

attributed to the smaller berry size observed in the 2026 season. Wine quality is above expectations, with ideal alcohol levels and adequate mouthfeel. However, due to warmer conditions, Sauvignon Blanc exhibited fewer characteristic green aromas, while red cultivars already show strong potential in terms of colour development and structure. The wines produced from early white cultivars are developing exceptionally well, with good balance and fresh acidity. It also promises to be an excellent vintage for red wines from the valley. – Nicolaas Rust, Group Manager: Operations, Namaqua Wines “

STELLAR WINERY

Klaas Coetzee | 082 801 3737 | klaas@vinpro.co.za

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