nomadseason

Monthly climate in Bahia Blanca, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Bahia Blanca features a humid subtropical climate (Cfa). Temperatures typically range between 8 °C (47 °F) and 24 °C (75 °F) through the year, but rarely can drop to -1 °C (30 °F) or can rise to as high as 39 °C (103 °F). The average annual precipitation amounts to about 564 mm (22.2 inches) and receives 62 rainy days on the 1 mm (0.04 inches) threshold annually. Bahia Blanca enjoys an average of 3490 hours of sunshine throughout the year, and daylight varies from 9 hours 28 minutes to 14 hours 48 minutes per day.

Monthly average temperatures in Bahia Blanca, Argentina

The warmest months in Bahia Blanca are January, February and December, with daily mean temperatures ranging from 22 to 24 °C (71 - 75 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 8 to 10 °C (47 - 50 °F) throughout the day. On average each year, Bahia Blanca experiences 93 days above 25 °C (77.0 °F) and 1 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Bahia Blanca. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum39°C
(103°F)		35°C
(95°F)		34°C
(93°F)		30°C
(87°F)		24°C
(76°F)		19°C
(67°F)		19°C
(66°F)		23°C
(74°F)		26°C
(79°F)		32°C
(91°F)		31°C
(89°F)		36°C
(97°F)
Mean maximum35°C
(96°F)		34°C
(93°F)		32°C
(89°F)		27°C
(82°F)		23°C
(73°F)		16°C
(62°F)		18°C
(64°F)		21°C
(70°F)		23°C
(74°F)		28°C
(83°F)		31°C
(87°F)		34°C
(94°F)
Average high28°C
(84°F)		27°C
(81°F)		25°C
(77°F)		21°C
(71°F)		16°C
(62°F)		13°C
(56°F)		12°C
(54°F)		15°C
(58°F)		17°C
(63°F)		20°C
(68°F)		23°C
(74°F)		27°C
(81°F)
Daily mean24°C
(75°F)		22°C
(72°F)		20°C
(68°F)		17°C
(63°F)		12°C
(54°F)		9°C
(49°F)		8°C
(47°F)		10°C
(50°F)		12°C
(55°F)		15°C
(60°F)		19°C
(66°F)		22°C
(71°F)
Average low19°C
(66°F)		18°C
(64°F)		16°C
(61°F)		13°C
(56°F)		9°C
(49°F)		6°C
(44°F)		5°C
(41°F)		6°C
(44°F)		8°C
(48°F)		11°C
(52°F)		14°C
(57°F)		16°C
(62°F)
Mean minimum12°C
(54°F)		11°C
(52°F)		10°C
(50°F)		7°C
(45°F)		3°C
(38°F)		1°C
(35°F)		-0°C
(32°F)		0°C
(33°F)		2°C
(37°F)		5°C
(41°F)		9°C
(48°F)		10°C
(50°F)
Minimum11°C
(52°F)		10°C
(49°F)		8°C
(46°F)		3°C
(38°F)		1°C
(34°F)		1°C
(33°F)		-1°C
(30°F)		-1°C
(31°F)		1°C
(34°F)		4°C
(39°F)		6°C
(43°F)		8°C
(47°F)

Compare climate in Bahia Blanca with other places

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

Monthly average precipitation in Bahia Blanca, Argentina

Bahia Blanca usually has the most precipitation in February, April and November, with an average of 6 rainy days and 64 mm (2.5 inches) of precipitation per month. The driest months in Bahia Blanca are January, August and September. On average, 32 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Bahia Blanca. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)31 (1.2)55 (2.2)44 (1.7)61 (2.4)44 (1.7)43 (1.7)43 (1.7)22 (0.9)42 (1.6)49 (1.9)76 (3.0)54 (2.1)
Average precipitation days (≥ 1 mm)456655435676

Monthly sunshine hours in Bahia Blanca, Argentina

The sunniest months in Bahia Blanca are February, November and December, when the sun shines an average of 11 hours 49 minutes a day. Least sunny months in Bahia Blanca: May, June and July receive an average of 7 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bahia Blanca. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours317327326264225204217264277327343393
Mean daily daylight hours14h 29m13h 30m12h 16m11h 1m9h 59m9h 28m9h 45m10h 40m11h 51m13h 7m14h 14m14h 48m

Solar UV radiation in Bahia Blanca, Argentina

Bahia Blanca experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 12 - 14, which corresponds to the Extreme category of sun exposure. May, June and July are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Bahia Blanca UV Index data.

Average daily maximum UV levels by month for Bahia Blanca. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)141210643357101213