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Monthly climate in Puerto San Julian, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Puerto San Julian features a cold semi-arid climate (BSk). Temperatures typically range between 4 °C (40 °F) and 16 °C (61 °F) through the year, but rarely can drop to -6 °C (21 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 251 mm (9.9 inches) and receives 54 rainy days on the 1 mm (0.04 inches) threshold annually. Puerto San Julian enjoys an average of 3284 hours of sunshine throughout the year, and daylight varies from 8 hours 13 minutes to 16 hours 9 minutes per day.

Monthly average temperatures in Puerto San Julian, Argentina

The warmest months in Puerto San Julian are January, February and December, with daily mean temperatures ranging from 15 to 16 °C (59 - 61 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 4 to 6 °C (40 - 43 °F) throughout the day. On average each year, Puerto San Julian experiences 6 days above 25 °C (77.0 °F) and 14 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Puerto San Julian. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum28°C
(83°F)		31°C
(88°F)		28°C
(82°F)		24°C
(76°F)		17°C
(63°F)		14°C
(57°F)		15°C
(60°F)		18°C
(65°F)		20°C
(68°F)		22°C
(72°F)		24°C
(76°F)		30°C
(85°F)
Mean maximum26°C
(80°F)		28°C
(83°F)		25°C
(77°F)		20°C
(69°F)		16°C
(61°F)		12°C
(54°F)		12°C
(53°F)		15°C
(60°F)		18°C
(65°F)		20°C
(68°F)		23°C
(74°F)		26°C
(80°F)
Average high19°C
(66°F)		20°C
(68°F)		18°C
(64°F)		14°C
(58°F)		11°C
(51°F)		7°C
(45°F)		7°C
(45°F)		9°C
(49°F)		12°C
(53°F)		14°C
(57°F)		16°C
(62°F)		18°C
(66°F)
Daily mean15°C
(60°F)		16°C
(61°F)		14°C
(57°F)		11°C
(52°F)		8°C
(46°F)		5°C
(40°F)		4°C
(40°F)		6°C
(43°F)		8°C
(46°F)		10°C
(50°F)		13°C
(55°F)		15°C
(59°F)
Average low11°C
(53°F)		12°C
(54°F)		10°C
(51°F)		8°C
(47°F)		5°C
(42°F)		2°C
(37°F)		2°C
(36°F)		3°C
(38°F)		5°C
(41°F)		6°C
(44°F)		9°C
(48°F)		11°C
(52°F)
Mean minimum7°C
(45°F)		7°C
(45°F)		6°C
(42°F)		3°C
(38°F)		0°C
(33°F)		-2°C
(29°F)		-3°C
(28°F)		-1°C
(31°F)		-0°C
(32°F)		1°C
(34°F)		5°C
(41°F)		7°C
(44°F)
Minimum5°C
(41°F)		5°C
(41°F)		4°C
(40°F)		2°C
(36°F)		-1°C
(30°F)		-5°C
(22°F)		-6°C
(21°F)		-3°C
(27°F)		-1°C
(31°F)		-2°C
(29°F)		4°C
(40°F)		6°C
(43°F)

Compare climate in Puerto San Julian with other places

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

Monthly average precipitation in Puerto San Julian, Argentina

Puerto San Julian usually has the most precipitation in April, November and December, with an average of 5 rainy days and 24 mm (0.9 inches) of precipitation per month. The driest months in Puerto San Julian are February, September and October. On average, 17 mm (0.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Puerto San Julian. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)20 (0.8)18 (0.7)23 (0.9)25 (1.0)23 (0.9)22 (0.9)18 (0.7)22 (0.8)16 (0.6)17 (0.7)23 (0.9)24 (1.0)
Average precipitation days (≥ 1 mm)435564445455

Monthly sunshine hours in Puerto San Julian, Argentina

The sunniest months in Puerto San Julian are October, November and December, when the sun shines an average of 11 hours 40 minutes a day. Least sunny months in Puerto San Julian: May, June and July receive an average of 5 hours 59 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Puerto San Julian. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours297323294235188178184234274327364382
Mean daily daylight hours15h 40m14h 10m12h 21m10h 32m9h 0m8h 13m8h 39m10h 1m11h 46m13h 36m15h 15m16h 9m

Solar UV radiation in Puerto San Julian, Argentina

Puerto San Julian experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 11 - 12, which corresponds to the Extreme category of sun exposure. May, June and July are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Puerto San Julian UV Index data.

Average daily maximum UV levels by month for Puerto San Julian. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)1210742123581111