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Monthly climate in San Jose, Peru

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Jose features a oceanic climate (Cfb). Temperatures typically range between 15 °C (59 °F) and 17 °C (63 °F) through the year, but rarely can drop to 8 °C (46 °F) or can rise to as high as 26 °C (80 °F). The average annual precipitation amounts to about 2210 mm (87.0 inches) and receives 323 rainy days on the 1 mm (0.04 inches) threshold annually. San Jose enjoys an average of 3623 hours of sunshine throughout the year, and daylight varies from 11 hours 45 minutes to 12 hours 27 minutes per day.

Monthly average temperatures in San Jose, Peru

The warmest months in San Jose are February, November and December, with daily mean temperatures ranging from 17 to 17 °C (63 - 63 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 15 to 16 °C (59 - 60 °F) throughout the day. On average each year, San Jose experiences 1 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 Jose. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum25°C
(78°F)		26°C
(78°F)		25°C
(77°F)		24°C
(76°F)		25°C
(77°F)		24°C
(75°F)		23°C
(73°F)		23°C
(74°F)		23°C
(74°F)		25°C
(77°F)		26°C
(78°F)		26°C
(80°F)
Mean maximum24°C
(76°F)		25°C
(77°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		23°C
(73°F)		24°C
(76°F)		25°C
(77°F)		25°C
(78°F)
Average high21°C
(70°F)		22°C
(71°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		20°C
(68°F)		19°C
(67°F)		19°C
(67°F)		20°C
(68°F)		21°C
(70°F)		22°C
(72°F)		21°C
(71°F)
Daily mean17°C
(62°F)		17°C
(63°F)		17°C
(62°F)		16°C
(62°F)		16°C
(62°F)		16°C
(61°F)		15°C
(59°F)		15°C
(60°F)		16°C
(60°F)		16°C
(62°F)		17°C
(63°F)		17°C
(63°F)
Average low13°C
(56°F)		13°C
(56°F)		13°C
(56°F)		13°C
(56°F)		13°C
(55°F)		12°C
(54°F)		11°C
(53°F)		11°C
(53°F)		12°C
(53°F)		12°C
(55°F)		13°C
(56°F)		13°C
(56°F)
Mean minimum11°C
(52°F)		11°C
(52°F)		11°C
(52°F)		11°C
(53°F)		11°C
(51°F)		10°C
(51°F)		9°C
(49°F)		9°C
(48°F)		10°C
(50°F)		10°C
(51°F)		11°C
(51°F)		11°C
(52°F)
Minimum10°C
(51°F)		9°C
(49°F)		10°C
(50°F)		10°C
(51°F)		10°C
(50°F)		9°C
(49°F)		8°C
(47°F)		8°C
(46°F)		9°C
(48°F)		9°C
(49°F)		10°C
(49°F)		10°C
(51°F)

Compare climate in San Jose with other places

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

Monthly average precipitation in San Jose, Peru

San Jose usually has the most precipitation in January, March and December, with an average of 27 rainy days and 242 mm (9.5 inches) of precipitation per month. The driest months in San Jose are June, August and September. On average, 135 mm (5.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Jose. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)222 (8.8)221 (8.7)257 (10.1)207 (8.1)157 (6.2)131 (5.1)143 (5.6)142 (5.6)133 (5.3)183 (7.2)167 (6.6)247 (9.7)
Average precipitation days (≥ 1 mm)242630292825282728282327

Monthly sunshine hours in San Jose, Peru

The sunniest months in San Jose are May, July and August, when the sun shines an average of 10 hours 39 minutes a day. Least sunny months in San Jose: January, February and March receive an average of 8 hours 38 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Jose. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours234275276295326316330333320311290312
Mean daily daylight hours12h 25m12h 17m12h 6m11h 56m11h 48m11h 45m11h 47m11h 54m12h 3m12h 14m12h 23m12h 27m

Solar UV radiation in San Jose, Peru

San Jose experiences the highest level of ultraviolet (UV) radiation in January, March and April, when the maximum UV index can reach values of 17 - 18, 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 14. For more detailed information, check out our hourly San Jose UV Index data.

Average daily maximum UV levels by month for San Jose. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)171718181513131416171616