Where can I grow wine grapes (Hot-climate)?

1. 1

   🇦🇷Buenos Aires, Argentina

   Great fit on 92k sq mi240k km² · worth a try on 19k sq mi49k km²

   For example Bahía Blanca (100), Punta Alta (100)

2. 2

   🇺🇸California, United States

   Great fit on 61k sq mi157k km² · worth a try on 11k sq mi28k km² · mostly with irrigation

   For example Vallejo (100), Chico (100)

3. 3

   🇨🇳Yunnan, China

   Great fit on 58k sq mi151k km² · worth a try on 28k sq mi72k km²

   For example Kunming (100), Chuxiong (100)

4. 4

   🇿🇦Eastern Cape, South Africa

   Great fit on 54k sq mi140k km² · worth a try on 2,800 sq mi7,200 km²

   For example Gqeberha (100), East London (100)

5. 5

   🇦🇺New South Wales, Australia

   Great fit on 51k sq mi131k km² · worth a try on 13k sq mi33k km²

   For example Maitland (100), Tamworth (100)

6. 6

   🇨🇳Guizhou, China

   Great fit on 49k sq mi126k km² · worth a try on 7,800 sq mi20k km²

   For example Zunyi (96), Loushanguan (96)

7. 7

   🇪🇹Oromiya, Ethiopia

   Great fit on 48k sq mi125k km² · worth a try on 24k sq mi62k km²

   For example Nazrēt (100), Ziway (100)

8. 8

   🇦🇷Cordoba, Argentina

   Great fit on 47k sq mi122k km² · worth a try on 3,100 sq mi8,000 km²

   For example Córdoba (100), Río Cuarto (100)

9. 9

   🇨🇳Sichuan, China

   Great fit on 46k sq mi120k km² · worth a try on 17k sq mi43k km²

   For example Pingwu County (100), Pu’an (100)

10. 10

    🇿🇦Western Cape, South Africa

    Great fit on 44k sq mi113k km² · worth a try on 3,000 sq mi7,800 km² · mostly with irrigation

    For example Cape Town (100), Paarl (100)

11. 11

    🇿🇲North-Western, Zambia

    Great fit on 42k sq mi108k km² · worth a try on 3,500 sq mi9,100 km²

    For example Kasempa (95), Mufumbwe (94)

12. 12

    🇺🇸Oklahoma, United States

    Great fit on 41k sq mi106k km² · worth a try on 10k sq mi27k km²

    For example Mustang (92), Yukon (91)

13. 13

    🇪🇸Andalusia, Spain

    Great fit on 38k sq mi100k km² · worth a try on 700 sq mi1,800 km²

    For example Málaga (100), Marbella (100)

14. 14

    🇧🇷Minas Gerais, Brazil

    Great fit on 33k sq mi86k km² · worth a try on 88k sq mi227k km²

    For example Novo Cruzeiro (94), Capelinha (93)

15. 15

    🇺🇸North Carolina, United States

    Great fit on 33k sq mi86k km² · worth a try on 14k sq mi37k km²

    For example Winston-Salem (92), High Point (92)

Regions are states and provinces, counting land within 75 km of a town. At most three per country, so the list covers the world.

• 🇨🇳China400k sq mi1.0M km² · 18% of its land
• 🇦🇷Argentina300k sq mi778k km² · 49% of its land
• 🇺🇸United States298k sq mi771k km² · 14% of its land
• 🇿🇦South Africa255k sq mi659k km² · 77% of its land
• 🇮🇷Iran183k sq mi474k km² · 34% of its land
• 🇲🇽Mexico162k sq mi419k km² · 26% of its land
• 🇿🇲Zambia139k sq mi360k km² · 57% of its land
• 🇪🇸Spain132k sq mi343k km² · 61% of its land
• 🇦🇺Australia129k sq mi333k km² · 41% of its land
• 🇹🇿Tanzania109k sq mi282k km² · 33% of its land

1. 100%Ideal

   Evaton

   🇿🇦 Gauteng, South Africa

2. 100%Ideal

   Maseru

   🇱🇸 Maseru District, Lesotho

3. 100%Ideal

   Santiago de Querétaro

   🇲🇽 Querétaro, Mexico

4. 100%Ideal

   Mek'ele

   🇪🇹 Tigray, Ethiopia

5. 100%Ideal

   Soweto

   🇿🇦 Gauteng, South Africa

6. 100%Ideal

   Salta

   🇦🇷 Argentina

7. 100%Ideal

   Küçükçekmece

   🇹🇷 Istanbul, Turkey

8. 100%Ideal

   Bağcılar

   🇹🇷 Istanbul, Turkey

9. 100%Ideal

   Ciudad Nezahualcoyotl

   🇲🇽 México, Mexico

10. 100%Ideal

    Gqeberha

    🇿🇦 Eastern Cape, South Africa

11. 100%Ideal

    Nilüfer

    🇹🇷 Bursa Province, Turkey

12. 100%Ideal

    Constantine

    🇩🇿 Algeria

The most comfortable fits among the 2,000 biggest towns, two per region. Scores assume irrigation where rain falls short; Needs irrigation marks towns that need it.

Winkler index (Apr–Oct degree days)

Ideal 3,420–4,680 °F·daysIdeal 1,900–2,600 °C·daysWon't grow below 2,880 °F·days or above 5,580 °F·daysWon't grow below 1,600 °C·days or above 3,100 °C·days

Coldest night of the year (average)

Ideal at least 10°FIdeal at least -12°CWon't grow below 0°FWon't grow below -18°C

Yearly rain

Ideal 20–35 inIdeal 500–900 mmWon't grow below 9.8 in or above 63 inWon't grow below 250 mm or above 1,600 mm

Frost-free days

Ideal at least 180 daysWon't grow below 150 days

Winkler regions run from I, under 2,500 °F·days, to V, over 4,000 °F·days (degree days above 50 °F, Apr–Oct). Wet summers mean mildew pressure.Winkler regions run from I, under 1,389 °C·days, to V, over 2,222 °C·days (degree days above 10 °C, Apr–Oct). Wet summers mean mildew pressure.

Sources: Amerine & Winkler 1944, Composition and quality of musts and wines of California grapes (Hilgardia); Jones et al. 2010, Spatial analysis of climate in winegrape growing regions in the western United States (American Journal of Enology and Viticulture); Steduto, Hsiao, Fereres & Raes 2012, Crop yield response to water (FAO Irrigation and Drainage Paper 66).

• Too hot for quality fruit49%
• Too cool to ripen45%
• Winters get too cold4%
• Too wet3%

Share of the land scoring under 50, by what holds it back most.

• Avocado
• Olive
• Table and raisin grapes
• Apple
• Cherry
• Blueberry
• Citrus
• Mango
• Banana
• Peach
• Pear
• Strawberry
• Date palm
• Kiwifruit
• Fig