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Monthly climate in Rio Gallegos, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Rio Gallegos features a cold semi-arid climate (BSk). Temperatures typically range between 2 °C (36 °F) and 14 °C (58 °F) through the year, but rarely can drop to -12 °C (11 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 382 mm (15.0 inches) and receives 91 rainy days on the 1 mm (0.04 inches) threshold annually. Rio Gallegos enjoys an average of 3010 hours of sunshine throughout the year, and daylight varies from 7 hours 51 minutes to 16 hours 32 minutes per day.

Monthly average temperatures in Rio Gallegos, Argentina

The warmest months in Rio Gallegos are January, February and December, with daily mean temperatures ranging from 14 to 14 °C (57 - 58 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 2 to 4 °C (36 - 40 °F) throughout the day. On average each year, Rio Gallegos experiences 9 days above 25 °C (77.0 °F) and 58 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Rio Gallegos. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum29°C
(85°F)		35°C
(95°F)		27°C
(81°F)		28°C
(83°F)		17°C
(63°F)		12°C
(54°F)		15°C
(59°F)		18°C
(64°F)		23°C
(74°F)		27°C
(82°F)		30°C
(87°F)		31°C
(87°F)
Mean maximum26°C
(80°F)		30°C
(86°F)		24°C
(76°F)		22°C
(71°F)		15°C
(59°F)		10°C
(50°F)		12°C
(54°F)		14°C
(58°F)		19°C
(67°F)		22°C
(72°F)		25°C
(78°F)		27°C
(82°F)
Average high19°C
(66°F)		20°C
(68°F)		17°C
(62°F)		13°C
(57°F)		9°C
(49°F)		5°C
(42°F)		6°C
(43°F)		8°C
(47°F)		12°C
(53°F)		14°C
(58°F)		17°C
(63°F)		19°C
(67°F)
Daily mean14°C
(57°F)		14°C
(58°F)		12°C
(54°F)		9°C
(48°F)		5°C
(42°F)		2°C
(36°F)		2°C
(36°F)		4°C
(40°F)		6°C
(44°F)		9°C
(49°F)		12°C
(54°F)		14°C
(57°F)
Average low9°C
(48°F)		9°C
(48°F)		7°C
(45°F)		4°C
(40°F)		2°C
(36°F)		-1°C
(30°F)		-1°C
(31°F)		1°C
(34°F)		2°C
(36°F)		4°C
(40°F)		6°C
(44°F)		8°C
(47°F)
Mean minimum4°C
(39°F)		3°C
(38°F)		2°C
(36°F)		-2°C
(29°F)		-3°C
(27°F)		-7°C
(20°F)		-7°C
(21°F)		-5°C
(24°F)		-4°C
(25°F)		-1°C
(30°F)		1°C
(34°F)		3°C
(38°F)
Minimum3°C
(37°F)		2°C
(35°F)		0°C
(33°F)		-3°C
(26°F)		-5°C
(23°F)		-12°C
(11°F)		-10°C
(15°F)		-6°C
(21°F)		-5°C
(24°F)		-5°C
(24°F)		-1°C
(31°F)		2°C
(36°F)

Compare climate in Rio Gallegos with other places

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

Monthly average precipitation in Rio Gallegos, Argentina

Rio Gallegos usually has the most precipitation in January, March and May, with an average of 10 rainy days and 44 mm (1.7 inches) of precipitation per month. The driest months in Rio Gallegos are July, August and September. On average, 20 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rio Gallegos. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)50 (2.0)32 (1.3)43 (1.7)36 (1.4)39 (1.5)24 (0.9)19 (0.7)21 (0.8)21 (0.8)30 (1.2)30 (1.2)39 (1.5)
Average precipitation days (≥ 1 mm)12710787656878

Monthly sunshine hours in Rio Gallegos, Argentina

The sunniest months in Rio Gallegos are October, November and December, when the sun shines an average of 10 hours 48 minutes a day. Least sunny months in Rio Gallegos: May, June and July receive an average of 5 hours 32 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rio Gallegos. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours263293259216176158175218254314333347
Mean daily daylight hours16h 0m14h 21m12h 23m10h 24m8h 43m7h 51m8h 20m9h 50m11h 44m13h 44m15h 33m16h 32m

Solar UV radiation in Rio Gallegos, Argentina

Rio Gallegos 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 Rio Gallegos UV Index data.

Average daily maximum UV levels by month for Rio Gallegos. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)119742113481211