Santa Cruz do Sul climate
Santa Cruz do Sul (Rio Grande do Sul, Brazil) has a humid subtropical climate (Köppen Cfa). The average temperature over the year is 20 °C68 °F, and about 1,590 mm63 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Santa Cruz do Sul climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 3187 | 2067 | 2577 | 1385.4 |
| Feb | 3187 | 2067 | 2577 | 1164.6 |
| Mar | 2984 | 1864 | 2474 | 1174.6 |
| Apr | 2679 | 1559 | 2169 | 1194.7 |
| May | 2271 | 1253 | 1762 | 1184.6 |
| Jun | 2067 | 1050 | 1559 | 1184.6 |
| Jul | 1966 | 948 | 1457 | 1415.5 |
| Aug | 2170 | 1050 | 1660 | 1134.4 |
| Sep | 2373 | 1253 | 1763 | 1576.2 |
| Oct | 2578 | 1458 | 2068 | 1917.5 |
| Nov | 2781 | 1661 | 2271 | 1345.3 |
| Dec | 3086 | 1865 | 2475 | 1295.1 |
| Year | 3187 | 948 | 2068 | 1,59063 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 77% | 59% | 6.3 | 13:51 |
| Feb | 76% | 59% | 5.9 | 13:10 |
| Mar | 78% | 55% | 5.0 | 12:21 |
| Apr | 80% | 54% | 3.9 | 11:24 |
| May | 84% | 60% | 2.9 | 10:39 |
| Jun | 86% | 62% | 2.5 | 10:15 |
| Jul | 85% | 56% | 2.7 | 10:24 |
| Aug | 84% | 53% | 3.4 | 11:04 |
| Sep | 83% | 60% | 4.0 | 11:58 |
| Oct | 82% | 62% | 5.0 | 12:52 |
| Nov | 79% | 55% | 6.2 | 13:40 |
| Dec | 76% | 56% | 6.6 | 14:03 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Santa Cruz do Sul is like
The warmest month is January, with an average high of 31 °C87 °F and a low of 20 °C67 °F. The coldest is July, when highs average 19 °C66 °F and lows 9 °C48 °F. There is a clear seasonal cycle, with 11.2 °C20.1 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,590 mm63 in of precipitation per year. Rain is spread fairly evenly through the year. The wettest month is October (191 mm7.5 in), the driest is August (113 mm4.4 in).
Relative humidity ranges from 76% in December to 86% in June. The clearest skies (lowest average cloud amount, 53%) are typical of August. Average wind speed near the ground ranges from 1 km/h (0 mph) in February to 1 km/h (0 mph) in May. Daylight lasts from about 10.2 hours in June to 14.0 hours in December.
Best time to visit Santa Cruz do Sul
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May and June and August: average highs of 20 °C67 °F to 22 °C71 °F with 113 mm4.4 in to 118 mm4.6 in of precipitation per month.
The most challenging month is October, which is very wet (191 mm7.5 in) and humid (82% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Santa Cruz do Sul
- Summer (December–February) — highs 3086 to 31 °C87 °F, lows 1865 to 20 °C67 °F, about 128 mm5.0 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
- Autumn (March–May) — highs 2271 to 29 °C84 °F, lows 1253 to 18 °C64 °F, about 118 mm4.6 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Winter (June–August) — highs 1966 to 21 °C70 °F, lows 948 to 10 °C50 °F, about 124 mm4.9 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Spring (September–November) — highs 2373 to 27 °C81 °F, lows 1253 to 16 °C61 °F, about 161 mm6.3 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
How Santa Cruz do Sul compares
Compared with Porto Alegre, about 120 km to the east, Santa Cruz do Sul is on average 0.6 °C1.1 °F warmer and receives 10% more precipitation (1,590 mm63 in vs 1,446 mm57 in). The difference is largest in December (1.1 °C2 °F warmer).
Of the 223 places in Brazil covered by World Climates, Santa Cruz do Sul is the 199th warmest by annual mean temperature and the 35th wettest by annual precipitation. See all of them on the Brazil climate page.
Places in other countries with the most similar temperature and rainfall pattern: Posadas (Argentina, Cfa), Concordia (Argentina, Cfa) and Salto (Uruguay, Cfa).
Nearby places
- Porto Alegre 120 km · 19 °C67 °F · 1,446 mm57 in
- Canoas 122 km · 19 °C67 °F · 1,446 mm57 in
- Novo Hamburgo 125 km · 20 °C68 °F · 1,574 mm62 in
- Santa Maria 133 km · 19 °C67 °F · 1,692 mm67 in
- Caxias do Sul 135 km · 16 °C61 °F · 1,667 mm66 in
- Gravataí 140 km · 19 °C67 °F · 1,446 mm57 in
- Passo Fundo 162 km · 17 °C63 °F · 1,722 mm68 in
- Pelotas 228 km · 18 °C65 °F · 1,343 mm53 in
Frequently asked questions
What is the warmest month in Santa Cruz do Sul?
January is the warmest month in Santa Cruz do Sul, with an average high of 31 °C (87 °F) and an average low of 20 °C (67 °F).
What is the coldest month in Santa Cruz do Sul?
July is the coldest month, with an average high of 19 °C (66 °F) and an average low of 9 °C (48 °F).
When does it rain the most in Santa Cruz do Sul?
October is the wettest month with about 191 mm (7.5 in) of precipitation; August is the driest with about 113 mm (4.4 in).
What is the best time to visit Santa Cruz do Sul?
Judging by long-term averages, the most comfortable months are May and June and August.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 313 m, while Santa Cruz do Sul lies at about 69 m. Temperatures on this page were therefore adjusted by +1.6 °C2.9 °F using the standard lapse rate of 6.5 °C per 1,000 m.