Arequipa vs Ayacucho: which is sunnier?
🇵🇪 Peru vs 🇵🇪 Peru · 454 km apart · long-term climate normals (NASA POWER, 2001–2020)
Arequipa is the sunnier overall: about 3,879 hours of sunshine a year to Ayacucho's 3,033. Ayacucho has the higher Sunshine Score in 8 of 12 months, Arequipa in 1 (3 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.

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At a glance
| Arequipa | Ayacucho | |
|---|---|---|
| Sunshine hours / year | 3,879 | 3,033 |
| Sunniest month | April (83/100) | June (96/100) |
| Nov–Feb average score | 81/100 | 80/100 |
| Jun–Aug average score | 69/100 | 93/100 |
| Rain / year | 98 mm | 588 mm |
| Peak midday UV | 14 (extreme) | 12 (extreme) |
Arequipa vs Ayacucho month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Arequipa | Ayacucho | Arequipa | Ayacucho | Arequipa | Ayacucho | |
| January | 79 | 78 | 18° | 20° | 27 | 101 |
| February | 77 | 77 | 18° | 20° | 40 | 111 |
| March | 81 | 80 | 18° | 20° | 18 | 91 |
| April | 83 | 92 | 18° | 20° | 2 | 27 |
| May | 75 | 94 | 17° | 20° | 1 | 15 |
| June | 67 | 96 | 16° | 20° | 0 | 5 |
| July | 66 | 87 | 16° | 19° | 2 | 11 |
| August | 75 | 95 | 17° | 20° | 0 | 10 |
| September | 83 | 93 | 18° | 21° | 1 | 21 |
| October | 83 | 90 | 18° | 21° | 1 | 40 |
| November | 83 | 87 | 18° | 22° | 1 | 52 |
| December | 83 | 78 | 18° | 21° | 5 | 104 |
The sunnier month by month: Jan even · Feb even · Mar even · Apr Ayacucho · May Ayacucho · Jun Ayacucho · Jul Ayacucho · Aug Ayacucho · Sep Ayacucho · Oct Ayacucho · Nov Ayacucho · Dec Arequipa.
When to pick which
- November–February: too close to call — Arequipa averages 81/100, Ayacucho 80/100. Ayacucho is the warmer, around 21°C daytime highs vs 18°C.
- March–May: Ayacucho (average score 89/100 vs 80). Ayacucho is the warmer, around 20°C daytime highs vs 18°C.
- June–August: Ayacucho (average score 93/100 vs 69). Ayacucho is the warmer, around 20°C daytime highs vs 16°C.
- September–October: Ayacucho (average score 92/100 vs 83). Ayacucho is the warmer, around 21°C daytime highs vs 18°C.
Full month-by-month guides: Arequipa weather by month · Ayacucho weather by month · Best time to visit Peru.
More comparisons: Arequipa vs Tacna · Arequipa vs Juliaca · Arequipa vs Arica · Ayacucho vs Lima · Ayacucho vs Cusco · all head-to-heads