🌡️ Climate of Northwestern Argentina
The Northwest of Argentina (NOA), which includes the provinces of Jujuy, Salta, Tucumán, Catamarca, and Santiago del Estero, is a transitional zone between tropical and temperate climates, featuring great diversity due to altitude and topography.
Climatic conditions are mainly influenced by:
- The tropical Atlantic system, which brings warm, humid air during summer and causes seasonal rains.
- The Andes Mountains, which block Pacific moisture and create orographic rainfall on the eastern slopes.
1. Eastern Region – Chaco Salteño
- Semi-arid climate with a dry winter season.
- Average annual rainfall: ~500 mm.
- Temperature extremes: +47 °C in summer and –5 °C in winter.
2. Western Region – Puna
- High-altitude arid climate.
- Rainfall: <200 mm/year.
- Average annual temperature: ~10 °C. Large day-night thermal range.
3. Valleys and Yungas (North, Center, South)
- Temperate to subtropical mountain climate, with a dry winter.
- Rainfall ranges between 700 and 2000 mm/year depending on slope orientation.
- Average temperatures: >20 °C in summer, <14 °C in winter.
📍 Weather in the City of Salta
The city of Salta experiences a warm season from October to February, with long days, pleasant temperatures, and summer rains. Winter is dry, with mild days and cold nights.
- Warmest month: December (~28 °C / 17 °C).
- Coldest month: July (~20 °C / 4 °C).
- Annual rainfall: ~748 mm, mostly between October and March.
📅 Monthly Averages
| Month | High | Low | Average | Rainfall (mm) |
|---|---|---|---|---|
| January | 27 °C | 16 °C | 21 °C | 183 |
| February | 26 °C | 16 °C | 20 °C | 163 |
| March | 24 °C | 14 °C | 19 °C | 119 |
| April | 22 °C | 11 °C | 16 °C | 36 |
| May | 21 °C | 7 °C | 13 °C | 8 |
| June | 19 °C | 3 °C | 10 °C | 3 |
| July | 20 °C | 3 °C | 10 °C | 3 |
| August | 22 °C | 4 °C | 12 °C | 5 |
| September | 23 °C | 7 °C | 15 °C | 8 |
| October | 26 °C | 11 °C | 19 °C | 25 |
| November | 27 °C | 14 °C | 21 °C | 66 |
| December | 28 °C | 15 °C | 21 °C | 137 |