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Monthly climate in Omas, Peru

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Omas features a cold desert climate (BWk). Temperatures typically range between 13 °C (56 °F) and 15 °C (60 °F) through the year, but rarely can drop to 3 °C (38 °F) or can rise to as high as 22 °C (71 °F). The average annual precipitation amounts to about 836 mm (32.9 inches) and receives 130 rainy days on the 1 mm (0.04 inches) threshold annually. Omas enjoys an average of 3694 hours of sunshine throughout the year, and daylight varies from 11 hours 23 minutes to 12 hours 50 minutes per day.

Monthly average temperatures in Omas, Peru

The warmest months in Omas are July, August and September, with daily mean temperatures ranging from 15 to 15 °C (59 - 60 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 13 to 13 °C (56 - 56 °F) throughout the day. On average each year, Omas experiences 0 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 Omas. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum20°C
(68°F)		19°C
(67°F)		20°C
(68°F)		20°C
(69°F)		21°C
(70°F)		22°C
(71°F)		20°C
(69°F)		20°C
(69°F)		20°C
(69°F)		21°C
(69°F)		20°C
(69°F)		21°C
(69°F)
Mean maximum18°C
(66°F)		18°C
(65°F)		18°C
(65°F)		18°C
(65°F)		19°C
(66°F)		20°C
(68°F)		20°C
(68°F)		20°C
(68°F)		20°C
(68°F)		20°C
(68°F)		20°C
(67°F)		19°C
(67°F)
Average high16°C
(61°F)		16°C
(60°F)		16°C
(61°F)		16°C
(62°F)		17°C
(63°F)		18°C
(65°F)		18°C
(65°F)		18°C
(65°F)		18°C
(64°F)		18°C
(64°F)		18°C
(64°F)		17°C
(63°F)
Daily mean13°C
(56°F)		13°C
(56°F)		13°C
(56°F)		13°C
(56°F)		14°C
(58°F)		15°C
(59°F)		15°C
(59°F)		15°C
(60°F)		15°C
(59°F)		15°C
(59°F)		15°C
(59°F)		14°C
(58°F)
Average low11°C
(52°F)		11°C
(52°F)		11°C
(52°F)		10°C
(51°F)		11°C
(52°F)		11°C
(52°F)		11°C
(53°F)		12°C
(54°F)		13°C
(55°F)		12°C
(54°F)		12°C
(54°F)		12°C
(53°F)
Mean minimum9°C
(48°F)		9°C
(48°F)		8°C
(48°F)		7°C
(44°F)		6°C
(42°F)		8°C
(46°F)		8°C
(47°F)		8°C
(46°F)		9°C
(48°F)		9°C
(48°F)		9°C
(49°F)		8°C
(47°F)
Minimum6°C
(43°F)		6°C
(43°F)		6°C
(43°F)		5°C
(41°F)		3°C
(38°F)		6°C
(43°F)		6°C
(42°F)		6°C
(43°F)		6°C
(44°F)		7°C
(44°F)		7°C
(45°F)		7°C
(45°F)

Compare climate in Omas with other places

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

Monthly average precipitation in Omas, Peru

Omas usually has the most precipitation in January, February and March, with an average of 24 rainy days and 198 mm (7.8 inches) of precipitation per month. The driest months in Omas are June, July and August. On average, 5 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Omas. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)164 (6.4)204 (8.0)228 (9.0)84 (3.3)27 (1.1)4 (0.2)4 (0.2)6 (0.2)16 (0.6)30 (1.2)19 (0.8)50 (2.0)
Average precipitation days (≥ 1 mm)21252817611266512

Monthly sunshine hours in Omas, Peru

The sunniest months in Omas are May, August and October, when the sun shines an average of 10 hours 47 minutes a day. Least sunny months in Omas: January, February and March receive an average of 8 hours 35 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Omas. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours236261283312332317329337328333313307
Mean daily daylight hours12h 45m12h 28m12h 8m11h 47m11h 31m11h 23m11h 27m11h 41m12h 1m12h 22m12h 40m12h 50m

Solar UV radiation in Omas, Peru

Omas experiences the highest level of ultraviolet (UV) radiation in January, February and November, when the maximum UV index can reach values of 17 - 17, which corresponds to the Extreme category of sun exposure. May, June and July are in the 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 Omas UV Index data.

Average daily maximum UV levels by month for Omas. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)171716151311121315161716