Tacna weather by month & the best time to visit
Peru · seaside town · hot desert climate

The best time to visit Tacna is June — its sunniest month (Sunshine Score 96/100), with July and April close behind. Tacna averages about 2,892 hours of sunshine a year. Daytime highs around 32°C / 90°F and roughly 1 mm of rain in June.
When is the best time to visit Tacna?
For sunshine, the best time to visit Tacna is June, then July and April. The dullest month is September (77/100, 2 mm of rain). The full month-by-month picture is in the table below.
How sunny is Tacna?
Tacna gets a lot of sun: around 2,892 hours a year. June (96/100) is noticeably better than September (77). It ranks #6 of 25 destinations in Peru for annual sunshine, above the national median of 2,286 hours. Rain is a non-event in Tacna — about 48 mm in a typical year.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 85 | 33° / 91°F | 22° / 72°F | 11 mm | 15 | 20° / 68°F |
| February | 85 | 33° / 91°F | 23° / 73°F | 10 mm | 15 | 22° / 72°F |
| March | 85 | 33° / 91°F | 22° / 72°F | 7 mm | 13 | 21° / 70°F |
| April | 86 | 33° / 91°F | 21° / 70°F | 2 mm | 11 | 20° / 68°F |
| May | 86 | 33° / 91°F | 20° / 68°F | 0 mm | 8 | 18° / 64°F |
| June | 96 | 32° / 90°F | 19° / 66°F | 1 mm | 6 | 17° / 63°F |
| July | 96 | 32° / 90°F | 19° / 66°F | 3 mm | 6 | 16° / 61°F |
| August | 86 | 33° / 91°F | 19° / 66°F | 2 mm | 7 | 17° / 63°F |
| September | 77 | 34° / 93°F | 20° / 68°F | 2 mm | 9 | 17° / 63°F |
| October | 77 | 34° / 93°F | 21° / 70°F | 2 mm | 11 | 19° / 66°F |
| November | 86 | 33° / 91°F | 21° / 70°F | 2 mm | 13 | 19° / 66°F |
| December | 85 | 33° / 91°F | 22° / 72°F | 6 mm | 14 | 19° / 66°F |
Sea temperature in Tacna by month
The sea off Tacna is warmest in February at around 22°C / 72°F, and coolest in July at 16°C / 61°F. The water sits at a comfortable 21°C or warmer roughly 2 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Head-to-head
How Tacna compares month by month: Tacna vs Santa Cruz · Tacna vs La Paz / El Alto · Tacna vs Arequipa · Tacna vs Cochabamba · all comparisons
Tacna: questions and answers
What kind of destination is Tacna?
Tacna is a seaside town in Peru at 445 m elevation with a hot desert climate — the sea reaches 22°C at its warmest and is swimmable (21°C+) about 2 months a year.
How many hours of sunshine does Tacna get a year?
Tacna gets about 2,892 hours of sunshine a year, at its best around June.
When is the best time to visit Tacna?
The sunniest time to visit Tacna is June, when the Sunshine Score peaks at 96/100 (with July and April close behind). Expect daytime highs around 32°C / 90°F.
What is the least sunny month in Tacna?
September is the least sunny month in Tacna, scoring 77/100 with about 2 mm of rain.
What is the sea temperature in Tacna?
The sea in Tacna ranges from about 16°C (July) to 22°C (February). Month-by-month sea temperatures are on this page.
How strong is the sun in Tacna?
The typical midday UV index in Tacna peaks around 15 (extreme) in January, easing to about 6 (high) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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