Best time to visit Santa Maria
Month-by-month weather averages for Santa Maria.
Santa Maria, Rio Grande do Sul, Brazil
°C
mm
- Average daily high and low
- Precipitation
- Good month
- Best month
- Made good or best by an event
| Month | Average daily high | Average daily low | Precipitation | Verdict |
|---|---|---|---|---|
| January | 30.5 °C / 87 °F | 19.8 °C / 68 °F | 143 mm / 5.6 in | neither best nor good |
| February | 30.2 °C / 86 °F | 19.7 °C / 67 °F | 122 mm / 4.8 in | neither best nor good |
| March | 28.4 °C / 83 °F | 18.1 °C / 65 °F | 121 mm / 4.8 in | neither best nor good |
| April | 25.4 °C / 78 °F | 15.1 °C / 59 °F | 118 mm / 4.6 in | good month |
| May | 20.8 °C / 69 °F | 11.8 °C / 53 °F | 151 mm / 5.9 in | good month |
| June | 18.6 °C / 65 °F | 9.9 °C / 50 °F | 134 mm / 5.3 in | good month |
| July | 18.7 °C / 66 °F | 9.4 °C / 49 °F | 126 mm / 4.9 in | good month |
| August | 20.7 °C / 69 °F | 10.5 °C / 51 °F | 112 mm / 4.4 in | good month |
| September | 22 °C / 72 °F | 12.5 °C / 55 °F | 174 mm / 6.9 in | good month |
| October | 24.5 °C / 76 °F | 14.4 °C / 58 °F | 177 mm / 7 in | good month |
| November | 27.4 °C / 81 °F | 16.2 °C / 61 °F | 138 mm / 5.4 in | good month |
| December | 29.8 °C / 86 °F | 18.5 °C / 65 °F | 142 mm / 5.6 in | neither best nor good |
Good and best months depend on more than temperature, rain and events. How they are chosen
Each activity on this page has its own good and best months, rated on twenty years of daily weather records. Which measures count, and how much, depends on the activity: humidity for exploring outdoors, wind for the beach, hiking and skiing, snow for skiing alone. Between them, the activities are rated on:
- Daytime highs
- Night-time lows
- How warm it feels
- Humidity
- How much of the day is sunny
- Hours of daylight
- Monthly rainfall
- How many days it rains
- Days of heavy rain
- Wind
- Snowfall and days with snow
- Major events, such as festivals
The chart shows the good and best months for exploring outdoors.
The event icon marks a month that an event lifts to good or best, such as a festival or a natural spectacle. Choose “Weather only” in the toolbar to rate the months on weather alone.
Best months by activity
Exploring outdoors
Mild days and nights, mostly dry and bright. The default for 'when should I go'.
- JJanuary: neither
- FFebruary: neither
- MMarch: neither
- AApril: good
- MMay: good
- JJune: good
- JJuly: good
- AAugust: good
- SSeptember: good
- OOctober: good
- NNovember: good
- DDecember: neither
- Good
- April–November
Why these months
April · good
In its favour: feels like (high) 26.9 °C / 80 °F, average daily high 25.4 °C / 78 °F, share of daylight that is sunny 77%, precipitation 118 mm / 4.6 in, wet days 9.2 days, average daily low 15.1 °C / 59 °F, days with heavy rain 4 days.
Against: relative humidity 79%.
May · good
In its favour: feels like (high) 20.9 °C / 70 °F, average daily high 20.8 °C / 69 °F, share of daylight that is sunny 68%, average daily low 11.8 °C / 53 °F, wet days 10.2 days.
Against: precipitation 151 mm / 5.9 in, relative humidity 83%, days with heavy rain 4.6 days.
June · good
In its favour: feels like (high) 18.2 °C / 65 °F, average daily high 18.6 °C / 65 °F, share of daylight that is sunny 66%, wet days 9.8 days, average daily low 9.9 °C / 50 °F.
Against: precipitation 134 mm / 5.3 in, relative humidity 84%, days with heavy rain 4.7 days.
July · good
In its favour: feels like (high) 18 °C / 64 °F, average daily high 18.7 °C / 66 °F, share of daylight that is sunny 70%, wet days 8.8 days, precipitation 126 mm / 4.9 in, average daily low 9.4 °C / 49 °F, days with heavy rain 4.4 days.
Against: relative humidity 82%.
August · good
In its favour: feels like (high) 20.4 °C / 69 °F, average daily high 20.7 °C / 69 °F, share of daylight that is sunny 74%, precipitation 112 mm / 4.4 in, average daily low 10.5 °C / 51 °F, wet days 10.1 days, days with heavy rain 3.6 days.
Against: relative humidity 79%.
September · good
In its favour: feels like (high) 22.5 °C / 73 °F, average daily high 22 °C / 72 °F, share of daylight that is sunny 66%, average daily low 12.5 °C / 55 °F, wet days 11.2 days.
Against: precipitation 174 mm / 6.9 in, days with heavy rain 5.6 days, relative humidity 80%.
October · good
In its favour: feels like (high) 25.9 °C / 79 °F, average daily high 24.5 °C / 76 °F, share of daylight that is sunny 70%, average daily low 14.4 °C / 58 °F, wet days 11.8 days.
Against: precipitation 177 mm / 7 in, days with heavy rain 6 days, relative humidity 78%.
November · good
In its favour: share of daylight that is sunny 76%, feels like (high) 29.6 °C / 85 °F, average daily high 27.4 °C / 81 °F, wet days 9.4 days, average daily low 16.2 °C / 61 °F, relative humidity 72%.
Against: precipitation 138 mm / 5.4 in, days with heavy rain 4.5 days.
An activity is listed only where it applies: skiing at ski destinations, beach and swimming at beach destinations. The nearest ski area is Los Penitentes, 1561 km away.
Weather averages
Monthly averages over twenty years, 2006–2025. Highs, lows and precipitation are in the chart at the top.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels like (high) | 34.4 °C | 34.2 °C | 31.4 °C | 26.9 °C | 20.9 °C | 18.2 °C | 18 °C | 20.4 °C | 22.5 °C | 25.9 °C | 29.6 °C | 33.1 °C |
| Days with heavy rain | 4.8 days | 4.2 days | 4.2 days | 4 days | 4.6 days | 4.7 days | 4.4 days | 3.6 days | 5.6 days | 6 days | 4.5 days | 5 days |
| Time rain usually falls | 3 pm | 3 pm | 4 pm | 1 pm | 11 am | 6 am | 3 pm | 8 am | 6 am | 3 pm | 2 pm | 3 pm |
| Sunshine per day | 11.3 h | 11.1 h | 9.6 h | 8.7 h | 7.2 h | 6.8 h | 7.3 h | 8.2 h | 7.8 h | 8.9 h | 10.3 h | 11.2 h |
| Relative humidity | 74% | 76% | 77% | 79% | 83% | 84% | 82% | 79% | 80% | 78% | 72% | 71% |
Air quality
Averaged over a shorter period (2022–2025) than the twenty-year averages above, and not counted towards good or best months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air pollution (PM2.5) 2022–2025 | 5.7 µg/m³ | 5.9 µg/m³ | 5.4 µg/m³ | 4.8 µg/m³ | 4.6 µg/m³ | 5 µg/m³ | 6.8 µg/m³ | 6.8 µg/m³ | 10 µg/m³ | 5.8 µg/m³ | 6.4 µg/m³ | 5.9 µg/m³ |
| Air pollution (PM2.5, daily peak) 2022–2025 | 9.7 µg/m³ | 10.4 µg/m³ | 9.4 µg/m³ | 8.1 µg/m³ | 8.1 µg/m³ | 8.5 µg/m³ | 11 µg/m³ | 11.5 µg/m³ | 16.9 µg/m³ | 10.2 µg/m³ | 10.8 µg/m³ | 10.3 µg/m³ |
- Good 15 µg/m³ or less
- Fair 15 to 25 µg/m³
- Moderate 25 to 37.5 µg/m³
- Poor 37.5 to 50 µg/m³
- Very poor 50 to 75 µg/m³
- Extremely poor over 75 µg/m³
Each figure is compared with the World Health Organization's guideline for a day's air, 15 µg/m³ or less, and with its interim targets above that. The words are ours: the WHO does not name its steps. The figures are modelled monthly averages, so single days can be well above them. The daily peak is the average of each day's highest hour, shaded on the same scale.