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Monthly climate in Arirahua, Peru

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Arirahua features a cold semi-arid climate (BSk). Temperatures typically range between 15 °C (60 °F) and 18 °C (64 °F) through the year, but rarely can drop to 6 °C (43 °F) or can rise to as high as 27 °C (81 °F). The average annual precipitation amounts to about 767 mm (30.2 inches) and receives 95 rainy days on the 1 mm (0.04 inches) threshold annually. Arirahua enjoys an average of 3773 hours of sunshine throughout the year, and daylight varies from 11 hours 11 minutes to 13 hours 2 minutes per day.

Monthly average temperatures in Arirahua, Peru

The warmest months in Arirahua are September, October and November, with daily mean temperatures ranging from 18 to 18 °C (64 - 64 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 15 to 16 °C (60 - 60 °F) throughout the day. On average each year, Arirahua experiences 15 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 Arirahua. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum24°C
(76°F)		23°C
(73°F)		23°C
(74°F)		25°C
(77°F)		26°C
(79°F)		25°C
(78°F)		25°C
(78°F)		26°C
(79°F)		27°C
(81°F)		27°C
(80°F)		26°C
(80°F)		26°C
(79°F)
Mean maximum23°C
(73°F)		22°C
(71°F)		22°C
(71°F)		24°C
(75°F)		25°C
(77°F)		24°C
(75°F)		25°C
(77°F)		25°C
(78°F)		26°C
(80°F)		26°C
(79°F)		26°C
(78°F)		25°C
(78°F)
Average high20°C
(67°F)		19°C
(66°F)		19°C
(67°F)		21°C
(71°F)		23°C
(73°F)		22°C
(72°F)		22°C
(72°F)		23°C
(73°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)		22°C
(72°F)
Daily mean16°C
(60°F)		15°C
(60°F)		15°C
(60°F)		16°C
(61°F)		17°C
(62°F)		16°C
(61°F)		16°C
(61°F)		16°C
(62°F)		18°C
(64°F)		18°C
(64°F)		18°C
(64°F)		17°C
(63°F)
Average low13°C
(55°F)		13°C
(55°F)		13°C
(55°F)		12°C
(54°F)		11°C
(52°F)		10°C
(51°F)		10°C
(50°F)		11°C
(51°F)		12°C
(54°F)		13°C
(56°F)		13°C
(56°F)		13°C
(57°F)
Mean minimum11°C
(52°F)		11°C
(52°F)		11°C
(52°F)		9°C
(49°F)		8°C
(47°F)		9°C
(48°F)		8°C
(46°F)		8°C
(46°F)		10°C
(51°F)		10°C
(51°F)		11°C
(52°F)		11°C
(52°F)
Minimum10°C
(50°F)		10°C
(50°F)		10°C
(50°F)		8°C
(47°F)		7°C
(45°F)		8°C
(46°F)		7°C
(44°F)		6°C
(43°F)		10°C
(49°F)		9°C
(49°F)		11°C
(51°F)		11°C
(51°F)

Compare climate in Arirahua with other places

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

Monthly average precipitation in Arirahua, Peru

Arirahua usually has the most precipitation in January, February and March, with an average of 25 rainy days and 220 mm (8.6 inches) of precipitation per month. The driest months in Arirahua are June, August and September. On average, 1 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Arirahua. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)234 (9.2)220 (8.6)205 (8.1)47 (1.8)7 (0.3)2 (0.1)3 (0.1)0 (0.0)1 (0.1)4 (0.1)5 (0.2)39 (1.5)
Average precipitation days (≥ 1 mm)2226271110000107

Monthly sunshine hours in Arirahua, Peru

The sunniest months in Arirahua are August, October and November, when the sun shines an average of 11 hours 16 minutes a day. Least sunny months in Arirahua: January, February and March receive an average of 8 hours 37 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Arirahua. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours233260290300328318333342337351343334
Mean daily daylight hours12h 55m12h 35m12h 9m11h 42m11h 21m11h 11m11h 16m11h 35m12h 0m12h 27m12h 50m13h 2m

Solar UV radiation in Arirahua, Peru

Arirahua experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 18 - 18, which corresponds to the Extreme category of sun exposure. May, June and July are in the Very High / Extreme exposure category. In these months, the maximum values of the UV index do not exceed 13. For more detailed information, check out our hourly Arirahua UV Index data.

Average daily maximum UV levels by month for Arirahua. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)181817161310121315171818