Taste the "Weather" before the Wine

Why Do Some Wines Taste “Fresh & Vibrant” While Others Feel “Ripe, Rich & Full”?

Have you ever tasted two wines side by side?

One feels fresh and lively, almost waking up your palate.

The other is filled with ripe fruit — rounder, warmer and fuller in the mouth.

If we can begin to understand why they taste so different,

wine tasting becomes much more interesting.

Instead of stopping at:

“This wine is delicious.”“This one is more acidic.”“This one has riper fruit.”

We can start asking a much more interesting question:

“What made this wine taste this way?”

And the answer doesn’t begin when we open the bottle.

It begins much earlier, while the grapes are still growing in the vineyard. 🍇

Wine Diary articles usually tell one complete story at a time, but I’m doing something a little different with this one.

If I tried to explain everything in a single article,

you might fall asleep before reaching the end.

But if I make it too short,

the story might finish before the wine has even had time to open up. 😉

So this time, we’re going on a three-part Mini Series.

We’ll step out of the glass and walk back into the vineyard,

putting the puzzle together one piece at a time. 🧩

And we’re not going to taste wine by memorising textbook vocabulary.

Instead, we’re going to learn to taste the picture behind the wine.

EP.1 — The First Piece of the Puzzle: Taste the Weather Before You Taste the Wine

Let’s begin with the simplest idea.

Before wine becomes wine, grapes are simply fruit.

With enough warmth and sunlight, grapes gradually ripen.

They accumulate more sugar and, generally, their acidity decreases.

What happens to the grape in the vineyard therefore follows us all the way into the glass.

In cooler conditions

📌 Grapes tend to ripen more slowly and retain more acidity.

📌 The resulting wines often feel fresher and more vibrant.

📌 Fruit character may lean towards citrus or fresher fruit.

📌 Alcohol levels are often more moderate.

In warmer conditions

📌 Grapes have greater potential to reach higher levels of ripeness and accumulate more sugar.📌 After fermentation, this can result in higher alcohol.

📌 Fruit character can become riper and the wine fuller-bodied.

If wine were really this simple, our job would be easy. 😄

We could just open a map, decide,

“This country is hot, that country is cold,” and predict the style of every bottle.

Unfortunately, nature isn’t quite that kind to us.

Knowing Where the Vineyard Is Still Isn’t Enough 🌍

Latitude — the distance from the equator — gives us a general indication of how much warmth a region might receive.

But it doesn’t tell us the whole story.

Take Bordeaux in France and Piedmont in Italy.

They sit at broadly similar latitudes, yet their environments — and the wines they produce — can be very different.

That’s because latitude is only the beginning.

There are many other factors capable of adjusting the temperature experienced by the vine.

One of them is altitude.

Sometimes, Just Going Up the Hill Changes Everything

Think about travelling to higher ground.

Down below, the temperature feels pleasantly warm.

Go high enough and suddenly…you start looking for your jacket.

Grapes experience that change too.

In general, temperature decreases as altitude increases.

So in relatively warm regions, higher altitude can help slow ripening and allow grapes to retain more acidity.

And then there is another relationship I particularly like: day and night.

In some vineyards, daytime temperatures provide enough sunshine and warmth for grapes to ripen, while temperatures drop significantly after sunset.

☀️ Warm days → help ripening and sugar accumulation

🌙 Cool nights → help slow the loss of acidity

This difference between daytime and nighttime temperatures is known as the diurnal range.

And this is why, when you visit a winery and hear a producer proudly say:

“We have warm days and cool nights.”

Don’t assume they’re giving you the weather forecast. 😄

They may actually be giving you a clue about the wine in your glass.

From the Glass Back to the Vineyard 🍷

This became even clearer to me through tasting and selecting wines alongside winemakers, sommeliers and œnologues.

When we taste seriously, we don’t stop at:

“What aromas can I smell?”

We begin looking at acidity, alcohol, tannin, texture, concentration and balance.

But for me, one of the most interesting parts comes when we start tracing those characteristics backwards:

from the glass → to the grape → back to the vineyard.

T

here is one phrase that captures this particularly well for me:

Ripe, but still fresh.

A grape can reach ripeness.

It can develop generous fruit and concentration.

And yet the resulting wine can still retain freshness and acidity.

So the question isn’t simply:

“How do we make grapes ripen?”

The more interesting question is:

“How do we get grapes to ripen in the way we want?”

Once we start thinking like this, terms such as Altitude, Cool Nights and Latitude stop being abstract wine vocabulary.

They become clues that help us read what is happening in the glass.

Try It Next Time You Taste

If you ever have the opportunity to taste with a winemaker, try asking:

“How cool does it get in the vineyard at night?”

Then return to your glass.

Pay attention to the acidity and the sense of freshness in the wine.

From one simple question, you may begin to see the connection:

Weather → Grape → Wine

And suddenly, the vineyard starts appearing inside the glass.

🧩 The First Puzzle Piece Is in Place

But even with everything we’ve learned so far,

we still don’t have enough information to fully understand the style of a wine.

Because there is another enormous “air-conditioning system” we haven’t talked about yet.

One capable of influencing temperature, rainfall, humidity — and even the character of an entire vintage.

And that brings us to…

EP.2 — When Water Changes the Whole Glass 🌊

We’re going back to Bordeaux to explore why the Atlantic Ocean, the Gironde estuary, and something as simple as rain arriving at the right or wrong moment can matter so much.

And why, when talking about a vintage with people who actually make wine,

we sometimes spend much more time talking about water than you might expect. 😄

Save EP.1, because we still have two puzzle pieces to add.

By the end of the series, we’ll bring them all together and return to where we started:

the wine in our glass. 🍷

Follow Wine Diary by BW to continue the journey.

And if you have a wine-loving friend who might enjoy looking beyond what a wine tastes like and discovering why it tastes that way, share this series and invite them along. 😊

Wine Diary by BW

Uncork & Unlock the World of French Wine

To be continued… 🍷