March 27, 2026 - 0 comments
Frost 2026: The French agricultural sector is on high alert.
Frost candles, smudge pots, frost fans, and sprinklers: much of the agricultural world, including winegrowers, is mobilized to save the 2026 harvest. From Auvergne to the northeast, large parts of eastern France are seeing a sharp drop in temperatures.
For the past three weeks, vegetation has been ahead of schedule. Many fruit trees and grapevines have already begun to bloom and bud. Springs are arriving earlier, and frosts are lingering. This is a situation beyond the control of farmers and winemakers. City dwellers cannot afford to remain indifferent — we are all affected.
Across France’s vineyards on the front lines:
📍 Burgundy:
From Chassagne-Montrachet to Puligny, hundreds of winemakers have rallied together. Frost candles have been lit. The battle is twofold: they are fighting both radiation frost (cold rising from the ground on a clear night) and advection frost (brought by northerly winds). In the Beaune area, late pruning was not enough to reduce the intensity of the cold.
📍The Loire regions:
Indre-et-Loire (Touraine), Loir-et-Cher, Cher (Berry), Sancerre, and Poitou-Charentes were all affected. Stress levels were at their peak, with temperatures sometimes dropping below -3 °C.
📍Chablis and Champagne:
Further north, sprinklers are the main defense — but only on estates that can afford them. Water is sprayed onto the buds, and the ice that forms keeps the plant tissue at 0 °C. The heat released during freezing protects the buds. A striking visual paradox: ice is used to prevent freezing.
🌡️ Recorded temperatures:
- -4.3°C in Centre-Val de Loire
- -7.4°C in Mourmelon, Marne
- -7.0°C in Chaumont, Haute-Marne
- -3.0 °C in Champagne
- -2.0 °C in Chablis (Burgundy)
Upcoming:
🗓️ Friday, March 27th
Tonight will bring the highest risk. After showers, frost will affect many regions. By late night, temperatures are expected to range from -3 °C to +1 °C, except in coastal areas. The most severe frost is forecast across the Massif Central, the Ardennes, and Lorraine, with frequent lows of -3 °C to -5 °C and local pockets reaching -6 °C. At these temperatures, all vegetation is at risk.
🗓️ Sunday, March 29th
Frost risk will persist at daybreak across nearly the entire country — no region will be spared. Minimum temperatures are expected to range between -2 °C and +2 °C.
In conclusion:
The agricultural world is on tenterhooks, at the mercy of a sky that, in 2026, seems determined to test the resilience of those who feed us. Now more than ever, clear-eyed realism replaces pessimism: observe, act, and hope that nature, the ultimate master of the game, shows mercy before the arrival of the Ice Saints.
How can you support winemakers?
In the face of this vital battle against the elements, solidarity is more important than ever. Here are three ways you can help right now:
- Buy wine: Beyond the weather, many winemakers are facing a fragile economic situation. Cash reserves are at an all-time low. Visit your local wine shop, order a bottle at a restaurant, your purchase helps them buy more directly from the winemakers.
- Support the organizations: The organization Les Vendanges Solidaires is doing remarkable work. Every gesture counts: a (tax-deductible) donation or buying their new T-shirt, illustrated by Michel Tolmer, helps fund estates under threat.
- Take action for the future: Reach out to your elected officials and support ambitious environmental policies. Demand concrete measures to protect farmers from the effects of climate change.
