SeasonMapBest time to visit the Southern Cone
The best time to visit the Southern Cone is March, August, September, October, November and December, judged across 27 places; May is its weakest month.
Updated September 2026 · Latin America & the Caribbean · 27 places, each judged for what it is · climate normals from ERA5 reanalysis
The Southern Cone month by month
| Month | Season | Why | Best places |
|---|---|---|---|
| January | good | 27°C highs · 12 h sun | San Pedro de Atacama, Antofagasta, Valparaíso |
| February | good | 27°C highs · 11 h sun | San Pedro de Atacama, Antofagasta, Iquique |
| March | in season | 25°C highs · 10 h sun | San Pedro de Atacama, Antofagasta, Iquique |
| April | good | 22°C highs · 9 h sun | Mendoza, Antofagasta, San Pedro de Atacama |
| May | good | 19°C highs | Antofagasta, Cafayate, Tilcara |
| June | good | 17°C highs | Antofagasta, Tilcara, Portillo |
| July | good | 17°C highs | Valle Nevado, Tilcara, Antofagasta |
| August | in season | 19°C highs · 9 h sun | Tilcara, Antofagasta, Valle Nevado |
| September | in season | 20°C highs · 10 h sun | Cafayate, Mendoza, Antofagasta |
| October | in season | 22°C highs · 11 h sun | Cafayate, Antofagasta, San Pedro de Atacama |
| November | in season | 25°C highs · 11 h sun | Cafayate, Antofagasta, San Pedro de Atacama |
| December | in season | 26°C highs · 12 h sun | San Pedro de Atacama, Antofagasta, Valparaíso |
In season: one of the region's three best months, and good in its own right. Low season: one of its three worst, and well below its best. The reasons compare each month with the region's own year and name the seasons on the ground — monsoon, autumn colour, hurricanes — where most of its places share them.
All 27 places in the Southern Cone
- AntofagastaChileweather by month →
- AsunciónParaguayweather by month →
- Buenos AiresArgentinaweather by month →
- CafayateArgentinaweather by month →
- Colonia del SacramentoUruguayweather by month →
- CórdobaArgentinaweather by month →
- Hanga RoaChileweather by month →
- IquiqueChileweather by month →
- La SerenaChileweather by month →
- Las LeñasArgentinaweather by month →
- Mar del PlataArgentinaweather by month →
- MendozaArgentinaweather by month →
- MontevideoUruguayweather by month →
- PortilloChileweather by month →
- PucónChileweather by month →
- Puerto IguazúArgentinaweather by month →
- Punta del DiabloUruguayweather by month →
- Punta del EsteUruguayweather by month →
- RosarioArgentinaweather by month →
- SaltaArgentinaweather by month →
- San Pedro de AtacamaChileweather by month →
- San Salvador de JujuyArgentinaweather by month →
- SantiagoChileweather by month →
- TilcaraArgentinaweather by month →
- Valle NevadoChileweather by month →
- ValparaísoChileweather by month →
- Viña del MarChileweather by month →
The Southern Cone — FAQ
- When is the best time to visit the Southern Cone?
- March, August, September, October, November and December. In March: 25°C highs · 10 h sun.
- When is the low season in the Southern Cone?
- The Southern Cone has no month that falls far below the rest of its year; May is the weakest (19°C highs).
- Which months are in season in the Southern Cone?
- March, August, September, October, November and December — the months among its best that are also good in their own right.