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Monthly climate in San Antonio, Peru

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Antonio features a tropical rainforest climate (Af). Temperatures typically range between 25 °C (78 °F) and 26 °C (80 °F) through the year, but rarely can drop to 16 °C (61 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 2823 mm (111.1 inches) and receives 296 rainy days on the 1 mm (0.04 inches) threshold annually. San Antonio enjoys an average of 3092 hours of sunshine throughout the year, and daylight varies from 11 hours 53 minutes to 12 hours 19 minutes per day.

Monthly average temperatures in San Antonio, Peru

The warmest months in San Antonio are September, October and November, with daily mean temperatures ranging from 26 to 26 °C (80 - 80 °F) throughout the day. The coldest temperatures usually occur in May, June and July, when daily mean temperatures range from 25 to 26 °C (78 - 79 °F) throughout the day. On average each year, San Antonio experiences 326 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 San Antonio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum35°C
(94°F)		35°C
(95°F)		34°C
(93°F)		34°C
(93°F)		33°C
(92°F)		32°C
(90°F)		33°C
(91°F)		35°C
(95°F)		35°C
(95°F)		35°C
(95°F)		34°C
(93°F)		34°C
(94°F)
Mean maximum33°C
(92°F)		33°C
(92°F)		33°C
(91°F)		33°C
(92°F)		32°C
(90°F)		32°C
(89°F)		32°C
(90°F)		33°C
(92°F)		34°C
(94°F)		34°C
(94°F)		33°C
(92°F)		33°C
(92°F)
Average high30°C
(86°F)		30°C
(86°F)		30°C
(86°F)		30°C
(86°F)		29°C
(85°F)		29°C
(85°F)		30°C
(86°F)		31°C
(87°F)		31°C
(89°F)		31°C
(88°F)		30°C
(87°F)		30°C
(86°F)
Daily mean26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(78°F)		25°C
(78°F)		26°C
(79°F)		26°C
(80°F)		26°C
(80°F)		26°C
(80°F)		26°C
(79°F)
Average low23°C
(74°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)		23°C
(74°F)		22°C
(72°F)		23°C
(73°F)		23°C
(74°F)		24°C
(75°F)		24°C
(75°F)		23°C
(75°F)
Mean minimum22°C
(72°F)		23°C
(73°F)		23°C
(73°F)		22°C
(72°F)		22°C
(71°F)		22°C
(71°F)		19°C
(66°F)		19°C
(67°F)		22°C
(72°F)		22°C
(72°F)		23°C
(73°F)		22°C
(72°F)
Minimum22°C
(71°F)		22°C
(71°F)		22°C
(72°F)		21°C
(71°F)		20°C
(68°F)		20°C
(68°F)		16°C
(62°F)		16°C
(61°F)		22°C
(71°F)		22°C
(71°F)		22°C
(73°F)		22°C
(72°F)

Compare climate in San Antonio with other places

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

Monthly average precipitation in San Antonio, Peru

San Antonio usually has the most precipitation in March, April and December, with an average of 28 rainy days and 321 mm (12.7 inches) of precipitation per month. The driest months in San Antonio are July, August and September. On average, 146 mm (5.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Antonio. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)275 (10.8)278 (11.0)322 (12.7)322 (12.7)242 (9.5)184 (7.2)149 (5.9)120 (4.7)170 (6.7)202 (8.0)239 (9.4)320 (12.6)
Average precipitation days (≥ 1 mm)242329272724211724252629

Monthly sunshine hours in San Antonio, Peru

The sunniest months in San Antonio are July, August and September, when the sun shines an average of 9 hours 39 minutes a day. Least sunny months in San Antonio: January, February and November receive an average of 7 hours 40 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Antonio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours220232244239247266302299285267236247
Mean daily daylight hours12h 17m12h 12m12h 6m12h 0m11h 55m11h 53m11h 54m11h 58m12h 4m12h 10m12h 16m12h 19m

Solar UV radiation in San Antonio, Peru

San Antonio experiences the highest level of ultraviolet (UV) radiation in February, March and April, when the maximum UV index can reach values of 16 - 17, which corresponds to the Extreme category of sun exposure. June, July and August are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 12. For more detailed information, check out our hourly San Antonio UV Index data.

Average daily maximum UV levels by month for San Antonio. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)151617161312111214141313