Dewing Group

Market Report 13th August 2026

Headlines
Ukraine's farmers despair as Russia's Black Sea blockade traps their harvest.

Temperatures in parts of England could hit 38C (100F) today as the UK's fifth widespread heatwave this year peaks.

A "massive" Ukrainian drone and missile strike on Russia's port of Novorossiysk has damaged two major grain export terminals and hit the last big Russian naval base on the Black Sea, reports say.

North Korea has declared it must possess the capability to counter any potential enemy moves with retaliatory strikes that would make their "survival and recovery impossible", according to reports.

Daily Market Update

Wheat
A powerful session driven by the combination of fresh Black Sea attacks and a bullish USDA report. London November 2026 surged £3.50 to £200.50 — breaking back through the psychologically significant £200 level — and Paris/Matif December gained 5.50 euros to €233.00. The safe corridor talk that had been applying modest downward pressure was comprehensively overridden by Ukraine launching fresh attacks on Novorossiysk — Russia's deep-water port with 15.8 million tonne export capacity, 200,000 tonnes of storage and supply by both road and rail. Any expectation of a negotiated shipping solution has been set back significantly by this attack. Russia is expected to retaliate, further destabilising Black Sea export prospects.

The scale of Ukraine's export collapse is now quantified starkly — in July 2025, Ukraine loaded 400 vessels. This July, 159. Exports cut 76% to just 280,000 tonnes. These are not abstract statistics — they represent the near-total collapse of one of the world's most important grain export corridors. The USDA revised Russian and Ukrainian combined exports down 2.5 million tonnes for 2026/27. EU wheat production was cut to 134.2 million tonnes and corn to 50.2 million tonnes — with lower corn availability driving upward revision to EU imports and downward revision to animal feed consumption. EU corn imports are rising while domestic production collapses — the feed grain balance sheet for Europe is tightening rapidly. Paris corn is approaching the technical €250/tonne level on the November contract.

Rhine and Danube water levels at record lows are forcing a revision of autumn planting expectations — logistics constraints are now affecting not just current season exports but next season's planting calendar. The infrastructure damage from this summer's drought extends well beyond the harvest itself.

USDA August WASDE — Key Numbers
The August report delivered the corn surprise the market was positioned for. Corn yield cut to 180.7 bushels per acre — down 1.2% from July and 3.1% below last year — with acreage revised upward partially offsetting the yield reduction. US corn stocks fall below 42 million tonnes with export demand strong at over 83 million tonnes. Corn posted its biggest daily gain in years, with December moving back above $4.80/bushel.

US wheat production trimmed slightly to 41.66 million tonnes with stocks revised lower — consistent with the ongoing supply deterioration narrative. Total US wheat acreage remains sharply below recent years.

Soybeans saw acreage revised up to 86.8 million acres with yield at 52.7 bushels per acre — close to last year's record — producing a new record US crop of 122.99 million tonnes. China bought a further 240,000 tonnes. If Chinese purchases reach the 25 million tonne commitment level, US soybean stocks will be significantly depleted. Crop tours starting will verify whether yield estimates hold.

Norfolk & East Anglian Context
The traditional August-September market low due to harvest pressure is the seasonal question every Norfolk grower is asking — will this year follow the pattern? The evidence suggests probably not to the same degree. Black Sea export collapse, record low UK and EU harvests, USDA confirming production cuts across multiple origins, and Novorossiysk under attack all argue for prices finding support significantly above where harvest pressure alone would take them. The logistics premium may ease but the genuine production shortage premium has a more solid floor than in a normal harvest season.

Rapeseed
Rebounded on Euronext but failed to break above the €540/tonne resistance on the November contract. Vegetable oil market momentum is limiting upward pressure. The structural supply case remains intact but the €540 technical level is proving a meaningful ceiling for now.

Opinion
Ukraine loading 159 vessels in July against 400 last July. Novorossiysk — Russia's most significant deep-water grain export terminal — now under direct attack. The safe corridor that markets briefly hoped for has been replaced by an attack on the port that any corridor would most need to function. Russia will respond. The Black Sea situation has worsened not improved this week.

£200.50 on November 2026 — back through the psychological level that the market has been fighting around for weeks. The USDA confirming corn yield cuts, EU production reductions and export downgrades from Russia and Ukraine has provided the fundamental validation that the price level requires. This is no longer purely a logistics story — it is a logistics story on top of a genuine production failure story across multiple major origins simultaneously.

The traditional August-September seasonal low is the question that matters most for Norfolk growers deciding whether to sell now or hold. History says harvest pressure brings prices lower in August. This year's history is being made in record-low UK harvests, Novorossiysk under attack, EU corn at 50.2 million tonnes and Rhine and Danube at record lows. The seasonal pattern exists for a reason — but the reasons for this year to break from that pattern are substantial.

Record low Danube and Rhine forcing revision of autumn planting expectations is the story that bridges this season's crisis and the next. Infrastructure and logistics damage from the 2026 drought and conflict does not disappear with the first autumn rain.