Tacna vs Arica: which is sunnier?
🇵🇪 Peru vs 🇨🇱 Chile · 33 km apart · long-term climate normals (NASA POWER, 2001–2020)
Tacna and Arica are virtually tied for annual sunshine — about 2,892 vs 2,893 hours a year. Arica has the higher Sunshine Score in 8 of 12 months, Tacna in 4.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Tacna | Arica | |
|---|---|---|
| Sunshine hours / year | 2,892 | 2,893 |
| Sunniest month | June (96/100) | March (96/100) |
| Nov–Feb average score | 85/100 | 96/100 |
| Jun–Aug average score | 93/100 | 74/100 |
| Rain / year | 48 mm | 28 mm |
| Warmest sea | 22°C / 72°F | 22°C / 72°F |
| Peak midday UV | 15 (extreme) | 14 (extreme) |
Tacna vs Arica month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Tacna | Arica | Tacna | Arica | Tacna | Arica | Tacna | Arica | |
| January | 85 | 95 | 33° | 23° | 11 | 4 | 20° | 20° |
| February | 85 | 95 | 33° | 24° | 10 | 4 | 22° | 22° |
| March | 85 | 96 | 33° | 23° | 7 | 2 | 21° | 22° |
| April | 86 | 96 | 33° | 21° | 2 | 1 | 20° | 21° |
| May | 86 | 96 | 33° | 20° | 0 | 0 | 18° | 18° |
| June | 96 | 80 | 32° | 18° | 1 | 2 | 17° | 17° |
| July | 96 | 71 | 32° | 17° | 3 | 6 | 16° | 16° |
| August | 86 | 72 | 33° | 17° | 2 | 3 | 17° | 17° |
| September | 77 | 72 | 34° | 17° | 2 | 2 | 17° | 17° |
| October | 77 | 80 | 34° | 18° | 2 | 1 | 19° | 18° |
| November | 86 | 96 | 33° | 20° | 2 | 1 | 19° | 19° |
| December | 85 | 96 | 33° | 22° | 6 | 2 | 19° | 20° |
The sunnier month by month: Jan Arica · Feb Arica · Mar Arica · Apr Arica · May Arica · Jun Tacna · Jul Tacna · Aug Tacna · Sep Tacna · Oct Arica · Nov Arica · Dec Arica.
When to pick which
- November–February: Arica (average score 96/100 vs 85). Tacna is the warmer, around 33°C daytime highs vs 22°C.
- March–May: Arica (average score 96/100 vs 86). Tacna is the warmer, around 33°C daytime highs vs 21°C.
- June–August: Tacna (average score 93/100 vs 74). Tacna is the warmer, around 32°C daytime highs vs 17°C.
- September–October: too close to call — Tacna averages 77/100, Arica 76/100. Tacna is the warmer, around 34°C daytime highs vs 18°C.
Sea temperature
Both seas peak at 22°C / 72°F. Swimmable water (21°C+): Tacna about 2 months a year, Arica about 3 months a year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Tacna weather by month · Arica weather by month · Best time to visit Peru · Best time to visit Chile.
More comparisons: Tacna vs Santa Cruz · Tacna vs La Paz / El Alto · Tacna vs Arequipa · Arica vs Arequipa · Arica vs Iquique · all head-to-heads