Live Weather & Forecast
Weather in Santiago
Rio Grande do Sul, Brazil · Real-time conditions & 3-day outlook
20°C
Feels like 20°C
68°F / Feels 68°F
Overcast
Santiago, Rio Grande do Sul
🌞 Daytime
Updated: 2026-04-21 14:45
Humidity
76%
Wind
10.4 km/h NE
Wind Gust
14.9 km/h
Pressure
1015 mb
Visibility
10 km
UV Index
1
(Low)
Precipitation
0 mm
Cloud Cover
100%
Dew Point
15.7°C
Wind Degree
36°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
135.9 μg/m³
NO₂
2.7 μg/m³
O₃
63 μg/m³
SO₂
1.4 μg/m³
PM 2.5
6.3 μg/m³
PM 10
6.3 μg/m³
Today's Hourly Forecast
24-hour breakdown for Santiago, Rio Grande do Sul
12 AM
18°
Fog
1 AM
17°
Light rain shower
2 AM
17°
Fog
3 AM
18°
Mist
4 AM
18°
Mist
5 AM
18°
Mist
6 AM
18°
Mist
7 AM
18°
Patchy light drizzle
8 AM
18°
Light drizzle
9 AM
18°
Patchy rain nearby
10 AM
18°
Cloudy
11 AM
19°
Cloudy
12 PM
19°
Overcast
1 PM
20°
Overcast
2 PM
20°
Overcast
3 PM
20°
Overcast
4 PM
20°
Overcast
5 PM
19°
Patchy rain nearby
6 PM
19°
Patchy rain nearby
7 PM
19°
Cloudy
8 PM
19°
Patchy rain nearby
9 PM
19°
Cloudy
10 PM
19°
Cloudy
11 PM
19°
Cloudy
3-Day Forecast
Daily overview for Santiago, Rio Grande do Sul
Today
Patchy rain nearby
20°
/
17°
🌧️ 89% chance of rain
💧 Avg. humidity: 88%
💨 Max wind: 11.5 km/h
🌧️ Total precip: 1.57 mm
☀️ UV Index: 1.3
🌅 Sunrise: 07:01 AM
🌇 Sunset: 06:14 PM
🌙 Waxing Crescent
🌑 Moon: 17% lit
Wed, Apr 22
Patchy rain nearby
25°
/
18°
🌧️ 89% chance of rain
💧 Avg. humidity: 83%
💨 Max wind: 9.4 km/h
🌧️ Total precip: 1.29 mm
☀️ UV Index: 4.1
🌅 Sunrise: 07:02 AM
🌇 Sunset: 06:13 PM
🌙 Waxing Crescent
🌑 Moon: 27% lit
Thu, Apr 23
Moderate rain
19°
/
17°
🌧️ 89% chance of rain
💧 Avg. humidity: 98%
💨 Max wind: 13 km/h
🌧️ Total precip: 18.19 mm
☀️ UV Index: 1
🌅 Sunrise: 07:03 AM
🌇 Sunset: 06:12 PM
🌙 Waxing Crescent
🌑 Moon: 38% lit
Best Time to Visit Santiago
Plan your trip to Santiago, Brazil around the most favorable weather conditions.
Peak Season
December – March
Southern hemisphere summer — warm and generally dry.
Shoulder Season
April – May, November
Fewer crowds, moderate prices, mild weather.
Off Season
June – September
Cooler winter months; indoor activities preferred.
Frequently Asked Questions
What is the current weather in Santiago?
Current conditions in Santiago: Overcast, temperature 20°C, humidity 76%.
What is the best time to visit Santiago?
The best time to visit Santiago is typically December – March. Southern hemisphere summer — warm and generally dry.
What is the climate like in Santiago?
Santiago is located at approximately -29.2° latitude. It experiences a temperate southern hemisphere climate.
Does it rain a lot in Santiago?
The wettest period in Santiago is typically during June – September. Cooler winter months; indoor activities preferred.
What should I pack for a trip to Santiago?
For visits to Santiago during December – March: light clothing and sun protection. For June – September: layers and a waterproof jacket are recommended.
What country is Santiago in?
Santiago is located in Brazil, in the state of Rio Grande do Sul.
What are the public holidays in Santiago in 2026?
View the 2026 public holidays for Santiago on our Holidays page.
What are the GPS coordinates used for the weather forecast in Santiago?
The weather forecast for Santiago uses coordinates -29.1897, -54.8666.
What is the current temperature outside in Santiago?
The current outdoor temperature in Santiago is 20°C (68°F) with overcast.
What is the hourly weather forecast for Santiago today?
Today's hour-by-hour weather breakdown for Santiago is shown in the Hourly Forecast section above, including temperature, rain chance, and conditions for each hour of the day.
What is the weather in Santiago tomorrow hour by hour?
Tomorrow's forecast for Santiago shows a high of 25°C and a low of 18°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in Santiago?
There is a 89% chance of rain in Santiago today. Check the hourly forecast above for a time-by-time breakdown of when rain is most likely.
Is it going to rain today in Santiago?
Yes, there is a 89% chance of rain in Santiago today — consider carrying an umbrella. Check the hourly forecast above for the most likely rain windows.