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Monthly climate in Itajai, Brazil

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Itajai features a humid subtropical climate (Cfa). Temperatures typically range between 16 °C (61 °F) and 25 °C (77 °F) through the year, but rarely can drop to 4 °C (40 °F) or can rise to as high as 34 °C (93 °F). The average annual precipitation amounts to about 1548 mm (60.9 inches) and receives 189 rainy days on the 1 mm (0.04 inches) threshold annually. Itajai enjoys an average of 3198 hours of sunshine throughout the year, and daylight varies from 10 hours 27 minutes to 13 hours 47 minutes per day.

Monthly average temperatures in Itajai, Brazil

The warmest months in Itajai are January, February and March, with daily mean temperatures ranging from 24 to 25 °C (75 - 77 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 16 to 17 °C (61 - 64 °F) throughout the day. On average each year, Itajai experiences 118 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 Itajai. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum34°C
(93°F)		34°C
(93°F)		31°C
(88°F)		29°C
(84°F)		29°C
(84°F)		26°C
(80°F)		27°C
(80°F)		27°C
(80°F)		26°C
(79°F)		30°C
(87°F)		30°C
(86°F)		31°C
(88°F)
Mean maximum31°C
(89°F)		31°C
(88°F)		30°C
(87°F)		28°C
(83°F)		27°C
(80°F)		23°C
(74°F)		25°C
(77°F)		24°C
(76°F)		26°C
(78°F)		28°C
(82°F)		29°C
(84°F)		30°C
(86°F)
Average high28°C
(82°F)		27°C
(81°F)		26°C
(80°F)		25°C
(76°F)		22°C
(72°F)		20°C
(69°F)		20°C
(68°F)		20°C
(68°F)		21°C
(71°F)		23°C
(73°F)		24°C
(75°F)		26°C
(79°F)
Daily mean25°C
(77°F)		24°C
(76°F)		24°C
(75°F)		21°C
(71°F)		19°C
(67°F)		17°C
(64°F)		16°C
(61°F)		17°C
(62°F)		19°C
(66°F)		20°C
(68°F)		21°C
(70°F)		23°C
(74°F)
Average low22°C
(72°F)		22°C
(71°F)		21°C
(71°F)		19°C
(66°F)		17°C
(62°F)		15°C
(59°F)		13°C
(56°F)		14°C
(57°F)		17°C
(62°F)		18°C
(64°F)		19°C
(66°F)		21°C
(69°F)
Mean minimum20°C
(67°F)		18°C
(65°F)		18°C
(65°F)		15°C
(58°F)		11°C
(53°F)		10°C
(51°F)		7°C
(44°F)		7°C
(45°F)		12°C
(55°F)		14°C
(58°F)		15°C
(60°F)		17°C
(63°F)
Minimum19°C
(66°F)		16°C
(61°F)		18°C
(64°F)		12°C
(55°F)		9°C
(49°F)		7°C
(44°F)		4°C
(40°F)		6°C
(43°F)		10°C
(51°F)		13°C
(55°F)		13°C
(56°F)		14°C
(58°F)

Compare climate in Itajai with other places

Compare temperature, precipitation, sunshine, UV index in Itajai, Brazil with other places around the world.

Monthly average precipitation in Itajai, Brazil

Itajai usually has the most precipitation in January, February and December, with an average of 20 rainy days and 182 mm (7.2 inches) of precipitation per month. The driest months in Itajai are April, July and August. On average, 71 mm (2.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Itajai. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)197 (7.7)175 (6.9)156 (6.1)94 (3.7)121 (4.8)128 (5.1)49 (1.9)71 (2.8)109 (4.3)149 (5.9)123 (4.8)175 (6.9)
Average precipitation days (≥ 1 mm)20192215141171013181921

Monthly sunshine hours in Itajai, Brazil

The sunniest months in Itajai are March, November and December, when the sun shines an average of 10 hours 0 minutes a day. Least sunny months in Itajai: January, June and September 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 Itajai. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours241291299279245220263247241248298323
Mean daily daylight hours13h 36m12h 59m12h 12m11h 24m10h 45m10h 27m10h 37m11h 11m11h 56m12h 44m13h 26m13h 47m

Solar UV radiation in Itajai, Brazil

Itajai experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 14 - 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 Itajai UV Index data.

Average daily maximum UV levels by month for Itajai. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)15141210755810121415