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Monthly climate in Imperial, Peru

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Imperial features a hot desert climate (BWh). Temperatures typically range between 17 °C (63 °F) and 20 °C (69 °F) through the year, but rarely can drop to 12 °C (54 °F) or can rise to as high as 26 °C (79 °F). The average annual precipitation amounts to about 230 mm (9.1 inches) and receives 57 rainy days on the 1 mm (0.04 inches) threshold annually. Imperial enjoys an average of 3710 hours of sunshine throughout the year, and daylight varies from 11 hours 21 minutes to 12 hours 52 minutes per day.

Monthly average temperatures in Imperial, Peru

The warmest months in Imperial are January, February and March, with daily mean temperatures ranging from 20 to 20 °C (68 - 69 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 17 to 17 °C (63 - 63 °F) throughout the day. On average each year, Imperial experiences 2 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 Imperial. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum26°C
(79°F)		25°C
(78°F)		25°C
(78°F)		26°C
(79°F)		25°C
(77°F)		22°C
(72°F)		22°C
(72°F)		21°C
(71°F)		22°C
(72°F)		23°C
(74°F)		23°C
(74°F)		25°C
(77°F)
Mean maximum25°C
(77°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)		21°C
(71°F)		21°C
(71°F)		21°C
(70°F)		21°C
(71°F)		23°C
(73°F)		23°C
(73°F)		24°C
(76°F)
Average high23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		22°C
(71°F)		20°C
(68°F)		20°C
(67°F)		19°C
(67°F)		20°C
(68°F)		21°C
(70°F)		21°C
(71°F)		22°C
(72°F)
Daily mean20°C
(68°F)		20°C
(69°F)		20°C
(69°F)		20°C
(67°F)		19°C
(66°F)		18°C
(64°F)		17°C
(63°F)		17°C
(63°F)		17°C
(63°F)		18°C
(64°F)		18°C
(65°F)		19°C
(67°F)
Average low18°C
(65°F)		18°C
(66°F)		18°C
(66°F)		17°C
(63°F)		16°C
(61°F)		16°C
(60°F)		15°C
(59°F)		15°C
(59°F)		15°C
(59°F)		15°C
(60°F)		16°C
(61°F)		17°C
(63°F)
Mean minimum17°C
(63°F)		17°C
(64°F)		17°C
(63°F)		15°C
(60°F)		14°C
(58°F)		14°C
(57°F)		14°C
(57°F)		13°C
(56°F)		14°C
(57°F)		14°C
(57°F)		14°C
(58°F)		16°C
(60°F)
Minimum16°C
(62°F)		16°C
(62°F)		16°C
(62°F)		14°C
(58°F)		13°C
(56°F)		13°C
(55°F)		13°C
(56°F)		12°C
(54°F)		13°C
(56°F)		13°C
(56°F)		14°C
(57°F)		15°C
(59°F)

Compare climate in Imperial with other places

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

Monthly average precipitation in Imperial, Peru

Imperial usually has the most precipitation in January, February and March, with an average of 16 rainy days and 63 mm (2.5 inches) of precipitation per month. The driest months in Imperial are July, August and September. On average, 1 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Imperial. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)59 (2.3)78 (3.1)53 (2.1)10 (0.4)5 (0.2)2 (0.1)1 (0.0)1 (0.0)2 (0.1)6 (0.2)3 (0.1)11 (0.4)
Average precipitation days (≥ 1 mm)141816310000113

Monthly sunshine hours in Imperial, Peru

The sunniest months in Imperial are May, August and October, when the sun shines an average of 10 hours 41 minutes a day. Least sunny months in Imperial: January, February and March receive an average of 8 hours 55 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Imperial. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours243271296314327311323331325335316312
Mean daily daylight hours12h 46m12h 29m12h 8m11h 46m11h 29m11h 21m11h 25m11h 40m12h 1m12h 23m12h 42m12h 52m

Solar UV radiation in Imperial, Peru

Imperial experiences the highest level of ultraviolet (UV) radiation in February, November and December, when the maximum UV index can reach values of 15 - 16, 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 11. For more detailed information, check out our hourly Imperial UV Index data.

Average daily maximum UV levels by month for Imperial. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151615141110111214151615