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Monthly climate in Tacna, Peru

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Tacna features a cold desert climate (BWk). Temperatures typically range between 16 °C (61 °F) and 21 °C (70 °F) through the year, but rarely can drop to 11 °C (52 °F) or can rise to as high as 28 °C (83 °F). The average annual precipitation amounts to about 225 mm (8.9 inches) and receives 37 rainy days on the 1 mm (0.04 inches) threshold annually. Tacna enjoys an average of 4004 hours of sunshine throughout the year, and daylight varies from 11 hours 3 minutes to 13 hours 10 minutes per day.

Monthly average temperatures in Tacna, Peru

The warmest months in Tacna are January, February and March, with daily mean temperatures ranging from 20 to 21 °C (69 - 70 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 16 to 16 °C (61 - 62 °F) throughout the day. On average each year, Tacna experiences 50 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Tacna. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum27°C
(81°F)		28°C
(82°F)		27°C
(82°F)		26°C
(79°F)		26°C
(78°F)		24°C
(75°F)		28°C
(83°F)		24°C
(75°F)		25°C
(77°F)		26°C
(78°F)		26°C
(79°F)		27°C
(81°F)
Mean maximum26°C
(80°F)		27°C
(80°F)		26°C
(80°F)		25°C
(78°F)		25°C
(77°F)		23°C
(73°F)		24°C
(75°F)		23°C
(74°F)		24°C
(75°F)		25°C
(77°F)		25°C
(77°F)		26°C
(79°F)
Average high25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		24°C
(75°F)		22°C
(72°F)		21°C
(70°F)		20°C
(68°F)		20°C
(69°F)		21°C
(70°F)		22°C
(72°F)		23°C
(74°F)		24°C
(76°F)
Daily mean20°C
(69°F)		21°C
(70°F)		20°C
(69°F)		19°C
(67°F)		18°C
(65°F)		17°C
(63°F)		16°C
(61°F)		16°C
(62°F)		16°C
(62°F)		17°C
(64°F)		18°C
(65°F)		19°C
(67°F)
Average low18°C
(64°F)		18°C
(64°F)		17°C
(64°F)		16°C
(61°F)		15°C
(60°F)		14°C
(58°F)		14°C
(57°F)		14°C
(57°F)		14°C
(57°F)		14°C
(58°F)		15°C
(59°F)		16°C
(61°F)
Mean minimum16°C
(61°F)		17°C
(62°F)		16°C
(60°F)		15°C
(58°F)		13°C
(56°F)		12°C
(55°F)		11°C
(53°F)		12°C
(53°F)		11°C
(53°F)		13°C
(55°F)		13°C
(57°F)		14°C
(58°F)
Minimum15°C
(59°F)		15°C
(58°F)		14°C
(58°F)		14°C
(57°F)		13°C
(55°F)		11°C
(52°F)		11°C
(52°F)		11°C
(52°F)		11°C
(52°F)		12°C
(54°F)		12°C
(54°F)		13°C
(56°F)

Compare climate in Tacna with other places

Compare temperature, precipitation, sunshine, UV index in Tacna, Peru with other places around the world.

Monthly average precipitation in Tacna, Peru

Tacna usually has the most precipitation in January, February and March, with an average of 9 rainy days and 35 mm (1.4 inches) of precipitation per month. The driest months in Tacna are April, October and November. On average, 7 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Tacna. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)48 (1.9)35 (1.4)21 (0.8)6 (0.2)17 (0.7)19 (0.7)19 (0.7)17 (0.7)16 (0.6)9 (0.4)6 (0.2)11 (0.4)
Average precipitation days (≥ 1 mm)11106012211003

Monthly sunshine hours in Tacna, Peru

The sunniest months in Tacna are October, November and December, when the sun shines an average of 11 hours 55 minutes a day. Least sunny months in Tacna: January, February and June receive an average of 9 hours 55 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Tacna. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours276302333327332314332341346367363365
Mean daily daylight hours13h 3m12h 39m12h 9m11h 39m11h 14m11h 3m11h 9m11h 30m11h 59m12h 30m12h 57m13h 10m

Solar UV radiation in Tacna, Peru

Tacna experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 16 - 16, which corresponds to the Extreme category of sun exposure. May, June and July are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly Tacna UV Index data.

Average daily maximum UV levels by month for Tacna. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)1616141210891113151616