London, September 21, 2026 – Britain's food inflation is projected to accelerate sharply over the next year, according to new forecasts from the Food and Drink Federation (FDF). The trade body now expects annual food price growth to reach 6.4% by July 2027, up from just 1.3% in August 2026. The forecast reflects a confluence of pressures, including the return of El Niño, ongoing energy costs, and supply chain disruptions.
The FDF's outlook comes as the World Meteorological Organization (WMO) indicates a near-certain probability that El Niño conditions will persist through February 2027. The September WMO update projects a significant anomaly of 3.6°C in the Niño 3.4 region this autumn, which could disrupt agricultural production in key exporting regions.
This anticipated price surge poses a significant challenge for Britain's listed grocers, including Tesco (LON:TSCO), J Sainsbury (LON:SBRY), and Marks & Spencer (LON:MKS). Retailers must balance protecting sales volumes against suppliers seeking to pass on higher input costs. The FDF's chief economist, Liliana Danila, noted that the food system is "straining to find further efficiencies," with cost pressures expected to filter through to shop prices gradually.
Forecast Path and Contributing Factors
The FDF's projections outline a clear trajectory: inflation is expected to rise to 3.9% by December 2026, average 5.5% over 2027, and peak at 6.4% in July 2027. These figures are based on annual changes in UK food and non-alcoholic drink prices, using data from the Office for National Statistics (ONS) and the FDF's own analysis.
Importantly, the FDF emphasizes that this is not solely an El Niño-driven forecast. The impact of the Iran war on energy prices and a European drought are also underpinning the expected cost increases. The combination of these shocks is more significant than any single factor.
Divergence in Food Prices
August data reveals a wide divergence in price movements across different food categories. Fish prices surged 11.8% year-on-year, while water, preserved fruit, and pasta also saw substantial increases of 8.9%, 7.7%, and 7.2%, respectively. In contrast, butter prices fell by 7.0% over the same period.
This divergence is more critical than the headline rate. Grocers can adjust promotions, but concentrated commodity shocks limit substitution options. For instance, a spike in fish prices cannot be easily offset by promoting other proteins if supply is constrained across the board.
Analyst Views and Market Implications
Current analyst recommendations reflect the complexity of the situation. Shore Capital rates J Sainsbury as a 'Buy' with a target price of 340p, citing its cash generation capabilities. Berenberg also has a 'Buy' rating on Marks & Spencer with a 480p target, while JPMorgan Cazenove is 'Overweight' on Tesco with a 490p target. These calls suggest that investors are not treating the sector as a monolith, but rather focusing on individual company strengths.
Britain imports approximately two-fifths of its food, according to government data. The Energy and Climate Intelligence Unit (ECIU) estimates that £17 billion of 2025 imports came from regions most exposed to El Niño. This dependency makes the UK particularly vulnerable to global supply shocks.
However, the government's September review offers a counterargument. It found "virtually no discernible impact" from the 2023 El Niño on UK food prices. This historical precedent suggests that the 6.4% peak may overstate the effect if harvests improve, energy costs ease, or supermarkets absorb some of the supplier increases.
The next key data point will be the ONS release of September food inflation on October 21. The following day, Sainsbury's interim results will provide an early test of how grocers are managing margins in this challenging environment.
