Is Arequipa sunnier than Tacna?

Arequipa is the sunnier: about 3,879 hours of sunshine a year versus 2,892 — a difference of 987 hours.

Which is warmer, Arequipa or Tacna?

Tacna is warmer across the year: average daytime highs of 33°C (91°F) versus 18°C.

Which is better in winter (November–February), Arequipa or Tacna?

Tacna scores better across November–February: 85/100 average versus 81, with daytime highs around 33°C.

Arequipa vs Tacna: which is sunnier?

🇵🇪 Peru vs 🇵🇪 Peru · 235 km apart · long-term climate normals (NASA POWER, 2001–2020)

Arequipa is the sunnier overall: about 3,879 hours of sunshine a year to Tacna's 2,892. Tacna has the higher Sunshine Score in 9 of 12 months, Arequipa in 2 (1 within 2 points).

Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.

At a glance

	Arequipa	Tacna
Sunshine hours / year	3,879	2,892
Sunniest month	April (83/100)	June (96/100)
Nov–Feb average score	81/100	85/100
Jun–Aug average score	69/100	93/100
Rain / year	98 mm	48 mm
Peak midday UV	14 (extreme)	15 (extreme)

Arequipa vs Tacna month by month

Month	Sunshine Score		Day high °C		Rain mm
Month	Arequipa	Tacna	Arequipa	Tacna	Arequipa	Tacna
January	79	85	18°	33°	27	11
February	77	85	18°	33°	40	10
March	81	85	18°	33°	18	7
April	83	86	18°	33°	2	2
May	75	86	17°	33°	1	0
June	67	96	16°	32°	0	1
July	66	96	16°	32°	2	3
August	75	86	17°	33°	0	2
September	83	77	18°	34°	1	2
October	83	77	18°	34°	1	2
November	83	86	18°	33°	1	2
December	83	85	18°	33°	5	6

The sunnier month by month: Jan Tacna · Feb Tacna · Mar Tacna · Apr Tacna · May Tacna · Jun Tacna · Jul Tacna · Aug Tacna · Sep Arequipa · Oct Arequipa · Nov Tacna · Dec even.

When to pick which

November–February: Tacna (average score 85/100 vs 81). Tacna is the warmer, around 33°C daytime highs vs 18°C.
March–May: Tacna (average score 86/100 vs 80). Tacna is the warmer, around 33°C daytime highs vs 18°C.
June–August: Tacna (average score 93/100 vs 69). Tacna is the warmer, around 32°C daytime highs vs 16°C.
September–October: Arequipa (average score 83/100 vs 77). Tacna is the warmer, around 34°C daytime highs vs 18°C.

Full month-by-month guides: Arequipa weather by month · Tacna weather by month · Best time to visit Peru.

More comparisons: Arequipa vs Juliaca · Arequipa vs Arica · Arequipa vs Ayacucho · Tacna vs Santa Cruz · Tacna vs La Paz / El Alto · Tacna vs Cochabamba · all head-to-heads