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Monthly climate in San Francisco, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Francisco features a humid subtropical climate (Cfa). Temperatures typically range between 11 °C (53 °F) and 25 °C (78 °F) through the year, but rarely can drop to -3 °C (27 °F) or can rise to as high as 41 °C (106 °F). The average annual precipitation amounts to about 802 mm (31.6 inches) and receives 77 rainy days on the 1 mm (0.04 inches) threshold annually. San Francisco enjoys an average of 3555 hours of sunshine throughout the year, and daylight varies from 10 hours 7 minutes to 14 hours 8 minutes per day.

Monthly average temperatures in San Francisco, Argentina

The warmest months in San Francisco are January, February and December, with daily mean temperatures ranging from 24 to 25 °C (75 - 78 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 11 to 14 °C (53 - 57 °F) throughout the day. On average each year, San Francisco experiences 175 days above 25 °C (77.0 °F) and 4 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 Francisco. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum41°C
(106°F)		36°C
(98°F)		37°C
(98°F)		35°C
(95°F)		30°C
(86°F)		29°C
(85°F)		31°C
(89°F)		34°C
(94°F)		38°C
(100°F)		39°C
(103°F)		39°C
(102°F)		39°C
(103°F)
Mean maximum37°C
(100°F)		35°C
(96°F)		34°C
(93°F)		32°C
(90°F)		28°C
(83°F)		25°C
(77°F)		28°C
(83°F)		32°C
(90°F)		35°C
(96°F)		36°C
(98°F)		37°C
(99°F)		38°C
(100°F)
Average high31°C
(87°F)		30°C
(85°F)		28°C
(82°F)		25°C
(78°F)		21°C
(70°F)		18°C
(65°F)		18°C
(64°F)		22°C
(71°F)		24°C
(75°F)		26°C
(78°F)		29°C
(84°F)		31°C
(87°F)
Daily mean25°C
(78°F)		24°C
(75°F)		22°C
(72°F)		19°C
(67°F)		15°C
(59°F)		12°C
(54°F)		11°C
(53°F)		14°C
(57°F)		17°C
(63°F)		19°C
(67°F)		23°C
(73°F)		24°C
(76°F)
Average low20°C
(68°F)		18°C
(65°F)		17°C
(62°F)		14°C
(58°F)		10°C
(51°F)		7°C
(45°F)		6°C
(44°F)		7°C
(46°F)		11°C
(52°F)		13°C
(56°F)		16°C
(62°F)		18°C
(65°F)
Mean minimum13°C
(55°F)		11°C
(52°F)		10°C
(50°F)		7°C
(46°F)		3°C
(38°F)		-1°C
(31°F)		-2°C
(29°F)		-0°C
(32°F)		4°C
(39°F)		6°C
(42°F)		10°C
(50°F)		12°C
(54°F)
Minimum11°C
(53°F)		8°C
(47°F)		9°C
(48°F)		3°C
(38°F)		0°C
(33°F)		-3°C
(27°F)		-3°C
(28°F)		-1°C
(30°F)		2°C
(36°F)		4°C
(40°F)		8°C
(47°F)		9°C
(48°F)

Compare climate in San Francisco with other places

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

Monthly average precipitation in San Francisco, Argentina

San Francisco usually has the most precipitation in January, April and December, with an average of 8 rainy days and 107 mm (4.2 inches) of precipitation per month. The driest months in San Francisco are June, July and August. On average, 17 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Francisco. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)105 (4.1)70 (2.8)90 (3.5)120 (4.7)61 (2.4)19 (0.7)19 (0.8)14 (0.5)37 (1.5)89 (3.5)84 (3.3)95 (3.7)
Average precipitation days (≥ 1 mm)977973435788

Monthly sunshine hours in San Francisco, Argentina

The sunniest months in San Francisco are October, November and December, when the sun shines an average of 11 hours 30 minutes a day. Least sunny months in San Francisco: May, June and July receive an average of 7 hours 43 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Francisco. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours298319317267228236246292289326355377
Mean daily daylight hours13h 54m13h 10m12h 13m11h 16m10h 29m10h 7m10h 19m11h 0m11h 54m12h 52m13h 42m14h 8m

Solar UV radiation in San Francisco, Argentina

San Francisco experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 14 - 14, which corresponds to the Extreme category of sun exposure. May, June and July are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly San Francisco UV Index data.

Average daily maximum UV levels by month for San Francisco. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141312864569111414