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Monthly climate in Santiago, Rio Grande do Sul, Brazil

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Santiago features a humid subtropical climate (Cfa). Temperatures typically range between 14 °C (57 °F) and 25 °C (77 °F) through the year, but rarely can drop to -2 °C (28 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 1610 mm (63.4 inches) and receives 119 rainy days on the 1 mm (0.04 inches) threshold annually. Santiago enjoys an average of 3382 hours of sunshine throughout the year, and daylight varies from 10 hours 17 minutes to 13 hours 57 minutes per day.

Monthly average temperatures in Santiago, Rio Grande do Sul, Brazil §

The warmest months in Santiago are January, February and December, 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 14 to 15 °C (57 - 60 °F) throughout the day. On average each year, Santiago experiences 178 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 Santiago, Rio Grande do Sul, Brazil. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 38°C
(101°F)		 37°C
(98°F)		 37°C
(100°F)		 33°C
(92°F)		 30°C
(87°F)		 29°C
(85°F)		 28°C
(83°F)		 32°C
(90°F)		 33°C
(91°F)		 36°C
(96°F)		 37°C
(99°F)		 38°C
(100°F)
Mean maximum 35°C
(96°F)		 34°C
(93°F)		 34°C
(94°F)		 31°C
(88°F)		 28°C
(82°F)		 25°C
(77°F)		 28°C
(82°F)		 30°C
(86°F)		 31°C
(88°F)		 33°C
(92°F)		 34°C
(93°F)		 36°C
(98°F)
Average high 30°C
(86°F)		 29°C
(85°F)		 28°C
(83°F)		 25°C
(78°F)		 21°C
(70°F)		 19°C
(67°F)		 19°C
(66°F)		 21°C
(70°F)		 23°C
(73°F)		 25°C
(77°F)		 28°C
(82°F)		 30°C
(86°F)
Daily mean 25°C
(77°F)		 24°C
(75°F)		 22°C
(73°F)		 20°C
(68°F)		 16°C
(61°F)		 15°C
(59°F)		 14°C
(57°F)		 15°C
(60°F)		 18°C
(64°F)		 20°C
(68°F)		 22°C
(72°F)		 24°C
(75°F)
Average low 20°C
(69°F)		 19°C
(66°F)		 18°C
(64°F)		 16°C
(60°F)		 12°C
(55°F)		 11°C
(52°F)		 10°C
(50°F)		 11°C
(51°F)		 13°C
(56°F)		 15°C
(59°F)		 16°C
(62°F)		 18°C
(65°F)
Mean minimum 15°C
(59°F)		 12°C
(54°F)		 12°C
(54°F)		 9°C
(48°F)		 6°C
(43°F)		 2°C
(35°F)		 0°C
(33°F)		 2°C
(36°F)		 6°C
(44°F)		 9°C
(48°F)		 11°C
(52°F)		 12°C
(55°F)
Minimum 14°C
(57°F)		 9°C
(49°F)		 11°C
(52°F)		 6°C
(43°F)		 4°C
(39°F)		 0°C
(33°F)		 -2°C
(28°F)		 1°C
(33°F)		 5°C
(41°F)		 7°C
(46°F)		 9°C
(49°F)		 9°C
(48°F)

Compare climate in Santiago with other places

Compare temperature, precipitation, sunshine, UV index in Santiago, Rio Grande do Sul, Brazil with other places around the world.

Monthly average precipitation in Santiago, Rio Grande do Sul, Brazil §

Santiago usually has the most precipitation in January, May and October, with an average of 11 rainy days and 182 mm (7.2 inches) of precipitation per month. The driest months in Santiago are February, July and December. On average, 98 mm (3.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Santiago, Rio Grande do Sul, Brazil. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 176 (6.9) 101 (4.0) 146 (5.7) 104 (4.1) 195 (7.7) 113 (4.4) 103 (4.1) 116 (4.6) 150 (5.9) 174 (6.9) 143 (5.6) 89 (3.5)
Average precipitation days (≥ 1 mm) 12 12 11 8 11 9 8 8 11 11 9 9

Monthly sunshine hours in Santiago, Rio Grande do Sul, Brazil §

The sunniest months in Santiago are March, November and December, when the sun shines an average of 11 hours 7 minutes a day. Least sunny months in Santiago: May, June and July receive an average of 7 hours 33 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Santiago, Rio Grande do Sul, Brazil. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 263 316 317 271 234 220 240 271 250 289 324 381
Mean daily daylight hours 13h 45m 13h 4m 12h 12m 11h 20m 10h 38m 10h 17m 10h 28m 11h 6m 11h 55m 12h 48m 13h 34m 13h 57m

Solar UV radiation in Santiago, Rio Grande do Sul, Brazil §

Santiago 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 6. For more detailed information, check out our hourly Santiago UV Index data.

Average daily maximum UV levels by month for Santiago, Rio Grande do Sul, Brazil. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 15 14 12 9 6 5 5 7 10 13 14 14

Detailed Monthly Weather Insights for Santiago, Rio Grande do Sul, Brazil

Discover in-depth weather details for every month in Santiago. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Santiago's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.