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Monthly climate in Puerto Iguazu, Argentina

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Puerto Iguazu features a humid subtropical climate (Cfa). Temperatures typically range between 17 °C (63 °F) and 27 °C (80 °F) through the year, but rarely can drop to 1 °C (34 °F) or can rise to as high as 40 °C (103 °F). The average annual precipitation amounts to about 1427 mm (56.2 inches) and receives 113 rainy days on the 1 mm (0.04 inches) threshold annually. Puerto Iguazu enjoys an average of 3423 hours of sunshine throughout the year, and daylight varies from 10 hours 33 minutes to 13 hours 41 minutes per day.

Monthly average temperatures in Puerto Iguazu, Argentina

The warmest months in Puerto Iguazu are January, February and December, with daily mean temperatures ranging from 26 to 27 °C (79 - 80 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 17 to 19 °C (63 - 66 °F) throughout the day. On average each year, Puerto Iguazu experiences 248 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 Puerto Iguazu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum39°C
(102°F)		37°C
(98°F)		36°C
(97°F)		35°C
(95°F)		33°C
(91°F)		30°C
(87°F)		30°C
(87°F)		34°C
(94°F)		39°C
(102°F)		40°C
(103°F)		37°C
(98°F)		38°C
(100°F)
Mean maximum35°C
(95°F)		36°C
(96°F)		35°C
(96°F)		32°C
(90°F)		30°C
(87°F)		27°C
(81°F)		30°C
(86°F)		33°C
(92°F)		37°C
(99°F)		36°C
(97°F)		35°C
(96°F)		36°C
(96°F)
Average high31°C
(88°F)		31°C
(88°F)		30°C
(87°F)		28°C
(82°F)		24°C
(76°F)		23°C
(73°F)		23°C
(74°F)		25°C
(77°F)		29°C
(84°F)		29°C
(85°F)		30°C
(87°F)		31°C
(89°F)
Daily mean27°C
(80°F)		26°C
(79°F)		25°C
(78°F)		22°C
(73°F)		19°C
(67°F)		18°C
(64°F)		17°C
(63°F)		19°C
(66°F)		23°C
(74°F)		24°C
(75°F)		25°C
(77°F)		26°C
(79°F)
Average low23°C
(73°F)		22°C
(71°F)		21°C
(70°F)		18°C
(65°F)		16°C
(60°F)		14°C
(58°F)		13°C
(55°F)		14°C
(58°F)		18°C
(65°F)		19°C
(67°F)		20°C
(68°F)		21°C
(71°F)
Mean minimum19°C
(67°F)		17°C
(63°F)		15°C
(60°F)		12°C
(54°F)		9°C
(48°F)		6°C
(44°F)		3°C
(38°F)		5°C
(42°F)		11°C
(52°F)		13°C
(56°F)		16°C
(61°F)		17°C
(62°F)
Minimum16°C
(62°F)		15°C
(59°F)		13°C
(55°F)		8°C
(47°F)		6°C
(44°F)		2°C
(36°F)		1°C
(34°F)		3°C
(38°F)		9°C
(49°F)		12°C
(53°F)		14°C
(58°F)		14°C
(58°F)

Compare climate in Puerto Iguazu with other places

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

Monthly average precipitation in Puerto Iguazu, Argentina

Puerto Iguazu usually has the most precipitation in January, October and December, with an average of 13 rainy days and 160 mm (6.3 inches) of precipitation per month. The driest months in Puerto Iguazu are July, August and September. On average, 66 mm (2.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Puerto Iguazu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)154 (6.1)111 (4.4)121 (4.8)105 (4.1)149 (5.9)146 (5.7)43 (1.7)76 (3.0)78 (3.1)171 (6.7)118 (4.7)155 (6.1)
Average precipitation days (≥ 1 mm)161111610966612911

Monthly sunshine hours in Puerto Iguazu, Argentina

The sunniest months in Puerto Iguazu are February, November and December, when the sun shines an average of 10 hours 53 minutes a day. Least sunny months in Puerto Iguazu: January, May and June receive an average of 8 hours 1 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Puerto Iguazu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours251310309285252233276278277275318351
Mean daily daylight hours13h 30m12h 55m12h 11m11h 27m10h 50m10h 33m10h 42m11h 14m11h 56m12h 41m13h 21m13h 41m

Solar UV radiation in Puerto Iguazu, Argentina

Puerto Iguazu experiences the highest level of ultraviolet (UV) radiation in January, February and November, when the maximum UV index can reach values of 15 - 15, 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 7. For more detailed information, check out our hourly Puerto Iguazu UV Index data.

Average daily maximum UV levels by month for Puerto Iguazu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)15151310756810131514