We keep saying it to each other on the phone, half in disbelief: it's not even September, and half of Europe has already started picking.
Normally, harvest is a September story. Sometimes it creeps into late August if the year has been kind. This year it arrived in July for some, and by the second week of August it was genuinely frantic in cellars from the Rhône to the Rhine. Nobody we work with has seen anything like it.
Why now, and why everywhere at once
The short answer is heat, and a lot of it, arriving early and staying. France recorded its hottest day since records began on 24 June this year, with the national average temperature touching 30°C — not a single scorching afternoon, but an average across the whole country. That kind of heat doesn't just make picking uncomfortable. It pushes grapes through ripening at a pace vines were never built for, compressing weeks of gradual sugar and flavour development into days.
Add three separate heatwaves between May and July, and you get a growing season that ran out of time to be leisurely about. Across most French appellations, picking has moved forward by a week to a fortnight compared with an already-warming baseline. That's not a one-off. Harvest dates have been creeping earlier for decades. What counted as remarkable ten years ago is starting to look routine.
The numbers, where they exist, are startling. In Burgundy, pickers were out in the Grand Cru Montrachet vineyard on 13 August — the earliest harvest recorded there in almost five hundred years, breaking a mark that had stood since 1556. Champagne is on course for the earliest start in its recorded history, picking expected from the middle of August, beating even 2020's early record. Bordeaux's Grand Cru estates are bringing pickers in around 17 August, weeks ahead of the usual first or second week of September — though, in fairness to 1893, that year still holds the outright record. In Germany, growers were picking nearly a fortnight earlier than usual. Spain and Italy, which usually start earliest of anyone, got going even sooner than that.
Even England isn't exempt. Hattingley Valley's harvest dates have crept earlier every year since 2022 — from 14 September that year to 9 September in 2025 — with 2026 now on course to be their earliest start yet, possibly in August.
I picked grapes in Bordeaux myself twenty years ago. It was near the end of September then. Some of those same vineyards started this year three weeks earlier than that.
How a grower actually knows it's time
This is the part most people never see. Picking day isn't picked from a calendar. It's decided grape by grape, and this year, growers have had to make that decision faster than ever. Here's roughly how it works.
1. Track the sugar
Every few days as ripening picks up, growers walk the rows and squeeze a handful of grapes into a small handheld device called a refractometer. It's little more than a lens and a scale, and it tells you the sugar content in the juice in seconds, expressed in degrees Brix. Higher Brix means higher potential alcohol once the sugar ferments. In a heatwave, this number can move alarmingly fast, sometimes noticeably from one morning to the next.
2. Check the acid
Sugar going up usually means acidity coming down, and acidity is what gives a wine its backbone and its ability to age. Growers test this with a simple acid titration kit, or increasingly a handheld pH meter, both measuring how tart the juice actually is. The two readings, sugar and acid, are read together. Neither means much on its own.
3. Taste the seeds, not just the grape
This is the bit that no instrument replaces. A grower will bite into a berry and chew the pips. Underripe seeds taste green and bitter. Ripe seeds taste nutty, almost like a hazelnut, and have turned from green to brown. This single, unglamorous habit tells an experienced palate more than any number on a screen.
4. Feel the skin
Tannin ripeness lives in the skins, and you can't measure that with a machine either. Growers chew a handful of skins looking for tannins that feel soft and rounded on the tongue rather than harsh and drying. Green, astringent skins mean the grape isn't there yet, whatever the sugar reading says.
5. Watch the stems
A less obvious one: the little stem connecting berry to bunch should have started turning from green to brown and slightly woody. It's a small, easily missed sign, but it's part of the same picture — the whole plant, not just the fruit, easing towards ripeness.
6. Walk the vineyard, every single day
None of the above works as a one-off test. It's the daily walk, the daily taste, the daily feel of berries between finger and thumb, repeated across days or weeks, that lets a grower see the trend rather than a single snapshot. Some estates now use portable near-infrared analysers that give lab-quality sugar and acid readings on the spot, but even these are treated as one more data point alongside taste, not a replacement for it.
7. Watch the sky
And then, alongside all of it, the forecast. A grower balancing perfect ripeness against an incoming heatwave or a week of rain will often choose to pick a touch earlier than the numbers alone would suggest, because a good crop brought in slightly early beats a great crop damaged by weather nobody could control.
Put together, sugar, acid, seed, skin, stem and sky rarely all say "now" on the same morning. Picking day is the point at which a grower decides the balance has tipped, and no single reading makes that call for them.
I was genuinely amazed when Toni told me he'd started harvesting at the start of August.
What an early harvest actually does to the wine
Here's the part that matters more than the headline. An early harvest isn't automatically a bad one — some growers are already talking about excellent quality in what's coming off the vines. But it does change the calculation growers are making, sometimes hour by hour.
Sugar rises fast in a heatwave. Acidity, which gives a wine its backbone and its ability to age, drops just as fast in the other direction. The tricky bit is that grapes don't always reach full phenological ripeness — proper flavour and tannin development — at the same pace as sugar. Pick too early and you get high alcohol with underdeveloped character. Pick too late and the acidity has gone, and with it the wine's structure. This year, more than most, growers have had to make that call with very little margin for error.
Quantity has taken a hit almost everywhere. Spring frost in some regions, drought in others, and the accelerated ripening itself have combined to shrink yields — in places by a fifth or more, in others closer to half. Smaller crops, worked with more urgency than usual, by growers who are watching the sky rather than the calendar.
It really is a gamble. Jérôme Maillot at Domaine des Réveilles in Côtes de Provence, a grower I'm visiting tomorrow and about to bring on board, is taking the opposite bet — holding off, letting rain arrive first, and picking after it.
What it's actually like right now
We've had this described to us as harvest starting before the harvest party — before the cellar's ready, before the extra hands have been properly briefed, before anyone's quite finished mentally preparing for it. Pickers are going out at first light and stopping when the heat makes both the work and the fruit itself unmanageable, sometimes after only five or six hours.
Rain right before harvest usually isn't welcome. It swells the grapes with water, diluting sugar, softening flavour concentration, and lowering acidity — the result is a lighter, more watery wine, with a real risk of the grapes splitting and rotting on the vine. But this year, with sugar levels running so high from the heat, a touch of rain right now could actually be a blessing, bringing the balance back rather than washing it away.
There's an odd mood to it. Genuine anxiety about yield sits right next to real excitement about what the fruit is showing in the glass. Growers who've spent thirty years reading their own vines by instinct are finding themselves in territory even their instincts haven't seen before.
The hard part is that this is new and unknown. Growers are having to scramble to find harvest teams at the last minute, and because nobody's been through a year quite like this before, there's no way of knowing yet whether it's a one-off or the start of a new normal — which makes it harder to plan for the years ahead. It's making everything stressful. Nobody really knows yet how wines made from grapes this high in sugar are actually going to taste.
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