Santiago, Brazil Climate by Month
Santiago, Rio Grande do Sul, Brazil
Hot summers and mild winters, with rain spread through the year.
Santiago has hot summers and mild winters, with rain spread through the year. Afternoon highs range from 66°F (19°C) in July to 86°F (30°C) in January, and July nights average 46°F (8°C). It gets 69 in (1746 mm) of rain a year, spread across the months.
- Warmest month
- 86°F(30°C)
- Average high, January
- Coldest nights
- 46°F(8°C)
- Average low, July
- Rain per year
- 69 in(1746 mm)
- No clear rainy season
- Humidity
- 74%
- Sunniest: December
Best and worst months in Santiago
Best for weatherThe most comfortable weather comes in April, August and September, with highs around 73°F (23°C) and about 5.6 in (142 mm) of rain a month.
Least pleasantJuly and December are the least pleasant; December is the wettest, with 6.9 in (176 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in April.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Santiago weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 86°F(30°C) | 65°F(18°C) | 4.8 in(122 mm) | 70% | 6.1 |
| FebFebruary | 86°F(30°C) | 65°F(18°C) | 4.5 in(115 mm) | 71% | 5.8 |
| MarMarch | 82°F(28°C) | 62°F(17°C) | 6.2 in(157 mm) | 75% | 4.8 |
| AprAprilBest | 76°F(25°C) | 57°F(14°C) | 6.3 in(160 mm) | 76% | 3.8 |
| MayMay | 69°F(21°C) | 51°F(11°C) | 5.0 in(127 mm) | 78% | 2.8 |
| JunJune | 67°F(20°C) | 49°F(9°C) | 5.2 in(133 mm) | 79% | 2.4 |
| JulJuly | 66°F(19°C) | 46°F(8°C) | 5.3 in(135 mm) | 78% | 2.7 |
| AugAugustBest | 70°F(21°C) | 49°F(9°C) | 4.4 in(113 mm) | 75% | 3.5 |
| SepSeptemberBest | 72°F(22°C) | 52°F(11°C) | 6.1 in(154 mm) | 74% | 4.0 |
| OctOctober | 76°F(25°C) | 56°F(14°C) | 8.7 in(222 mm) | 73% | 4.8 |
| NovNovember | 82°F(28°C) | 60°F(16°C) | 5.2 in(132 mm) | 69% | 6.0 |
| DecDecember | 85°F(30°C) | 63°F(17°C) | 6.9 in(176 mm) | 69% | 6.1 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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