New Latitude Wine: Why Northern Thailand Belongs on the World's Changing Wine Map

For most of modern wine history, the map was simple. Vines grew between the 30th and 50th parallels, north and south, in a band where the climate behaved the way centuries of European tradition said it should. Everything else was considered unsuitable.

That map is being redrawn.

What "New Latitude Wine" Actually Means

The term was coined in 2003 by Thailand-based wine author Frank Norel, at a conference in Bangkok, to describe wine grown outside the traditional latitude belt. New Latitude wines are grown outside the traditional belt, above 50 degrees latitude or below 30, in either hemisphere. Tropical heat, monsoon cycles, harsh winters, extreme dryness. Places the old rulebook said to avoid.

Northern Thailand is one of them.

The Traditional Wine Map Is Shrinking

The case for New Latitude wine is not romantic. It is arithmetic.

Global vineyard surface area fell for the fourth consecutive year in 2024, down to 7.1 million hectares, while wine production dropped to its lowest level in over sixty years. Researchers modelling climate impact on viticulture project that growing areas could shrink by 73 percent in major wine regions by 2050 under a high-emissions scenario. A separate study on shifting isotherms suggests the traditional temperature bands that define viticulture could shift 150-300km poleward within decades.

A 2024 review in Nature Reviews Earth & Environment assessed 72 established wine regions worldwide. Only eight showed improved suitability under continued warming. Twenty-one were rated high risk. The same study identified 26 new regions emerging as viable for the first time.

This is the context New Latitude wine sits inside. It is not a novelty category. It is where the industry is heading.

Tropical Viticulture Is Its Own Science

Growing vines near the equator is not the same discipline as growing them in Bordeaux or the Barossa, and pretending otherwise is where most attempts fail.

There are already 69 commercial wineries across 14 countries in the tropical zone, a figure from 2011 research that almost certainly understates the current count. Thailand, Brazil, India and Venezuela lead that group. Without a true winter, tropical vines never enter dormancy the way temperate vines do, which opens the door to double cropping. Research from Frontiers in Plant Science found double cropping can lift yield 10-20% a year, and that grapes grown in the cooler winter cycle carry noticeably higher flavonoid levels and deeper colour than the summer harvest.

The growing calendar itself runs in reverse. In Thailand's Khao Yai region, fruit set happens in October and November, with harvest running January to mid-March, the mirror image of a Northern Hemisphere season. Vines are typically pruned twice a year rather than once, and in some Thai vineyards grapes are hand-picked at night, before six in the morning, to preserve quality against the heat.

Thailand's Place in the Movement

Thailand already produces over a million bottles of wine a year, spread across several distinct growing regions rather than one single belt. Khao Yai, in the hills roughly 150km northeast of Bangkok, is the country's most established zone and its proof of concept. GranMonte, the region's best-known producer, farms its Khao Yai vineyards across roughly 72 rai, plus another 100 rai in Wang Nam Khiao, producing 100,000 to 150,000 bottles a year with plans to expand toward 400,000. Its winemaker, Nikki Lohitnavy, trained at the University of Adelaide and became Thailand's first fully qualified oenologist, trialling more than 40 grape varieties along the way. GranMonte has been named Best National Wine Producer in Thailand by AWC Vienna six times since 2015.

The Khao Yai Wine Geographical Indication, granted in 2018 and registered with the World Intellectual Property Organization, was the country's first formal recognition that this region produces something distinct. Khao Yai now turns out 300,000 to 500,000 bottles a year between its producers, worth an estimated 400 million baht at the top end, with a growing export line to Sweden, France, Japan, Taiwan and Singapore. PB Valley, the region's largest single estate, farms 80 hectares and produces up to 170,000 bottles annually, while Chateau de Loei, further north at 600 metres, is larger again.

A separate, smaller Northern Thailand wine region sits much further from the capital, roughly 800km north of Bangkok near Chiang Mai and Chiang Rai, at elevations between 300 and 600 metres, where harvest-season temperatures moderate to a workable 10 to 25 degrees Celsius. It is a newer, less developed zone than Khao Yai, and it is the region Skugga Estate Vineyard belongs to.

The Policy Tailwind

Thailand's government has made a deliberate bet on wine culture. In February 2024, the country eliminated import tariffs that had run as high as 60 percent, and cut excise tax from 10 to 5 percent. The USDA estimated the change cut retail wine prices by 35 to 40 percent overnight.

The effect was immediate. A Kasetsart University study tracked a 300 percent jump in consumption of wine priced between 3,001 and 5,000 baht within the following year. Wine still occupies a small share of Thailand's overall alcohol market, seven percent against beer's 55, but the trajectory is upward in a market USDA data valued at $14.7 billion in 2023. A country does not cut its own tax revenue by hundreds of millions of baht to protect a category it does not believe in.

Thailand Is Not Alone

New Latitude wine is a global movement, and the comparisons are instructive.

Brazil's São Francisco Valley, at 8 to 9 degrees south, farms 500 hectares of fine wine grapes across a much larger growing area, harvesting more than once a year in a true tropical climate. In November 2022 it became the first tropical wine region in the world to receive a Geographical Indication, a milestone Khao Yai is now pursuing through its own EU application.

India tells a similar story from a different angle. Wine grapes cover just 3,000 to 4,000 hectares out of 150,000 total vineyard hectares, concentrated around Nashik, which produces roughly 80 percent of the country's wine. Per capita consumption sits at nine millilitres, a fraction of France's, and yet more than 50 wineries now operate there.

At the opposite extreme sits Sweden, where more than 20 commercial vineyards now work together through a growers' association, at the absolute cold-climate fringe of the same map that Thailand occupies at the tropical end. New Latitude wine is not one direction. It is the whole map opening up at both edges at once.

New Latitude Wine at a Glance

Region	Vineyard Area	Annual Production	Elevation / Latitude	Geographical Indication
Khao Yai, Thailand	GranMonte: 172 rai (~27.5ha) across two sites; PB Valley: 80ha	300,000–500,000 bottles combined	300–550m / ~14°N	Granted 2018
Northern Thailand	~40 acres (~16ha) total	Not separately published	300–600m / 17–18°N	Not yet sought
São Francisco Valley, Brazil	500ha fine wine of 10,000ha total	2+ harvests per year	Near sea level / 8–9°S	Granted 2022, first tropical GI
Nashik, India	3,000–4,000ha of 150,000ha total	50+ wineries operating	Varies / ~20°N	Not established
Sweden	20+ commercial vineyards	Not published	Cool climate / ~55–59°N	Not established

Where Skugga Estate Vineyard Fits

Skugga Estate Vineyard sits within that Northern Thailand zone, in the Mae On valley, 40 minutes east of Chiang Mai Old City, at 410 metres above sea level. It is a separate site from Skugga Farm, home 1.5km away to the estate's coffee roastery, chocolate lab and classic car collection, though the two are easily combined in a single visit.

Here is the honest part. The vines at Skugga Estate Vineyard were planted in 2025. There is no estate-grown wine in the bottle yet. Rather than rush a harvest to catch a trend, the estate is building the same way the wider New Latitude movement itself has been built, slowly, through observation of what a tropical highland site actually wants to grow into. Fine dining, estate gin and ceremonial cacao are already running at the vineyard today. The wine is still to come.

That patience is, in its own way, the most New Latitude decision the estate could make. The movement was never about arriving quickly. It was about proving a place could belong on the map at all.

For readers following the wider story of wine culture across Asia, or curious about what a vineyard visit near Chiang Mai actually involves before the wine itself arrives, both are worth a read alongside this one. Anyone drawn to the unhurried side of wine will find Skugga's approach familiar.

Frequently Asked Questions

What is New Latitude wine?

New Latitude wine refers to wine grown outside the traditional 30 to 50 degree latitude band that has historically defined viticulture, in tropical, high-altitude, or otherwise non-traditional climates. The term was coined in Bangkok in 2003.

Can wine actually be grown in Thailand?

Yes. Thailand produces over a million bottles of wine annually, concentrated in the Khao Yai region, which holds the country's first wine Geographical Indication, granted in 2018.

Is there a vineyard near Chiang Mai?

Skugga Estate Vineyard sits in the Mae On valley, 40 minutes east of Chiang Mai Old City, at 410 metres elevation. The estate currently offers fine dining, estate gin and ceremonial cacao, with its own wine programme still developing from vines planted in 2025.

How does a tropical climate change the way wine is grown?

Without a true winter, tropical vines can be double cropped and are typically pruned twice a year rather than once. Harvest calendars also run in reverse compared with temperate regions, with Northern Thailand's harvest falling between January and March.

Is Skugga Estate Vineyard part of the New Latitude wine movement?

Geographically and philosophically, yes. Skugga sits within the same tropical highland zone producing wine elsewhere in Northern Thailand, though its own vines were only planted in 2025 and no estate wine has been produced yet.