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Monthly climate in Rio Grande, Rio Grande do Sul, Brazil

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Rio Grande features a humid subtropical climate (Cfa). Temperatures typically range between 14 °C (57 °F) and 24 °C (75 °F) through the year, but rarely can drop to 6 °C (44 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 1148 mm (45.2 inches) and receives 122 rainy days on the 1 mm (0.04 inches) threshold annually. Rio Grande enjoys an average of 3372 hours of sunshine throughout the year, and daylight varies from 10 hours 4 minutes to 14 hours 11 minutes per day.

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

The warmest months in Rio Grande are January, February and March, with daily mean temperatures ranging from 23 to 24 °C (73 - 75 °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, Rio Grande experiences 36 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 Rio Grande, 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 31°C
(88°F)		 30°C
(86°F)		 29°C
(85°F)		 27°C
(82°F)		 25°C
(77°F)		 22°C
(72°F)		 22°C
(72°F)		 23°C
(73°F)		 23°C
(74°F)		 25°C
(78°F)		 27°C
(80°F)		 28°C
(82°F)
Mean maximum 29°C
(84°F)		 28°C
(83°F)		 27°C
(81°F)		 25°C
(78°F)		 22°C
(72°F)		 19°C
(67°F)		 20°C
(68°F)		 21°C
(70°F)		 21°C
(71°F)		 23°C
(73°F)		 25°C
(78°F)		 27°C
(81°F)
Average high 25°C
(77°F)		 25°C
(77°F)		 24°C
(75°F)		 22°C
(72°F)		 19°C
(66°F)		 17°C
(62°F)		 15°C
(59°F)		 15°C
(60°F)		 17°C
(63°F)		 19°C
(66°F)		 21°C
(70°F)		 23°C
(73°F)
Daily mean 24°C
(75°F)		 24°C
(75°F)		 23°C
(73°F)		 21°C
(70°F)		 18°C
(64°F)		 15°C
(60°F)		 14°C
(57°F)		 14°C
(58°F)		 16°C
(61°F)		 18°C
(65°F)		 20°C
(68°F)		 22°C
(71°F)
Average low 23°C
(74°F)		 23°C
(74°F)		 22°C
(72°F)		 20°C
(68°F)		 17°C
(62°F)		 14°C
(58°F)		 12°C
(55°F)		 13°C
(56°F)		 15°C
(59°F)		 17°C
(63°F)		 19°C
(66°F)		 21°C
(69°F)
Mean minimum 20°C
(69°F)		 20°C
(67°F)		 19°C
(66°F)		 16°C
(61°F)		 12°C
(54°F)		 9°C
(48°F)		 7°C
(46°F)		 9°C
(49°F)		 12°C
(53°F)		 13°C
(56°F)		 16°C
(61°F)		 17°C
(63°F)
Minimum 20°C
(68°F)		 18°C
(65°F)		 18°C
(64°F)		 14°C
(57°F)		 9°C
(48°F)		 8°C
(46°F)		 6°C
(44°F)		 8°C
(46°F)		 9°C
(49°F)		 13°C
(55°F)		 15°C
(58°F)		 15°C
(59°F)

Compare climate in Rio Grande with other places

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

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

Rio Grande usually has the most precipitation in July, September and October, with an average of 11 rainy days and 129 mm (5.1 inches) of precipitation per month. The driest months in Rio Grande are February, April and December. On average, 72 mm (2.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rio Grande, 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) 85 (3.3) 75 (2.9) 87 (3.4) 65 (2.6) 97 (3.8) 99 (3.9) 111 (4.4) 100 (3.9) 144 (5.7) 131 (5.2) 78 (3.1) 77 (3.0)
Average precipitation days (≥ 1 mm) 9 12 12 11 10 9 10 9 12 12 8 8

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

The sunniest months in Rio Grande are March, November and December, when the sun shines an average of 11 hours 9 minutes a day. Least sunny months in Rio Grande: June, July and September receive an average of 7 hours 34 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rio Grande, 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 284 318 323 274 244 219 233 249 235 285 333 369
Mean daily daylight hours 13h 57m 13h 11m 12h 13m 11h 15m 10h 27m 10h 4m 10h 16m 10h 58m 11h 54m 12h 53m 13h 45m 14h 11m

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

Rio Grande experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 13 - 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 5. For more detailed information, check out our hourly Rio Grande UV Index data.

Average daily maximum UV levels by month for Rio Grande, 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) 14 13 12 8 5 4 4 6 9 11 13 14

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

Discover in-depth weather details for every month in Rio Grande. 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 Rio Grande'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.