Salta vs Antofagasta: which is sunnier?
🇦🇷 Argentina vs 🇨🇱 Chile · 527 km apart · long-term climate normals (NASA POWER, 2001–2020)
Antofagasta is the sunnier overall: about 3,624 hours of sunshine a year to Salta's 3,114. Month by month it's balanced: each has the higher Sunshine Score in 6 months.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Salta | Antofagasta | |
|---|---|---|
| Sunshine hours / year | 3,114 | 3,624 |
| Sunniest month | June (97/100) | January (100/100) |
| Nov–Feb average score | 75/100 | 98/100 |
| Jun–Aug average score | 97/100 | 78/100 |
| Rain / year | 782 mm | 10 mm |
| Peak midday UV | 11 (extreme) | 15 (extreme) |
Salta vs Antofagasta month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Salta | Antofagasta | Salta | Antofagasta | Salta | Antofagasta | |
| January | 70 | 100 | 29° | 23° | 184 | 1 |
| February | 70 | 100 | 28° | 23° | 164 | 2 |
| March | 76 | 100 | 27° | 22° | 116 | 1 |
| April | 87 | 100 | 26° | 21° | 57 | 0 |
| May | 96 | 92 | 23° | 19° | 11 | 0 |
| June | 97 | 83 | 23° | 18° | 5 | 2 |
| July | 97 | 75 | 23° | 17° | 2 | 1 |
| August | 97 | 75 | 25° | 17° | 3 | 2 |
| September | 97 | 75 | 27° | 17° | 5 | 0 |
| October | 92 | 83 | 30° | 18° | 29 | 0 |
| November | 86 | 92 | 30° | 19° | 65 | 0 |
| December | 72 | 100 | 30° | 21° | 141 | 1 |
The sunnier month by month: Jan Antofagasta · Feb Antofagasta · Mar Antofagasta · Apr Antofagasta · May Salta · Jun Salta · Jul Salta · Aug Salta · Sep Salta · Oct Salta · Nov Antofagasta · Dec Antofagasta.
When to pick which
- November–February: Antofagasta (average score 98/100 vs 75). Salta is the warmer, around 29°C daytime highs vs 22°C.
- March–May: Antofagasta (average score 97/100 vs 86). Salta is the warmer, around 25°C daytime highs vs 21°C.
- June–August: Salta (average score 97/100 vs 78). Salta is the warmer, around 24°C daytime highs vs 17°C.
- September–October: Salta (average score 95/100 vs 79). Salta is the warmer, around 29°C daytime highs vs 18°C.
Full month-by-month guides: Salta weather by month · Antofagasta weather by month · Best time to visit Argentina · Best time to visit Chile.
More comparisons: Salta vs Calama · Salta vs Copiapo · Antofagasta vs Iquique · Antofagasta vs Calama · Antofagasta vs Copiapo · all head-to-heads