Live Weather & Forecast
Weather in Guaíba
Rio Grande do Sul, Brazil · Real-time conditions & 3-day outlook
21°C
Feels like 21°C
70°F / Feels 70°F
Partly cloudy
Guaíba, Rio Grande do Sul
🌞 Daytime
Updated: 2026-04-21 11:15
Humidity
88%
Wind
4.3 km/h N
Wind Gust
5.7 km/h
Pressure
1017 mb
Visibility
10 km
UV Index
0.8
(Low)
Precipitation
0.01 mm
Cloud Cover
75%
Dew Point
16.5°C
Wind Degree
10°
Air Quality Index
US EPA: Good
UK DEFRA: Low (2)
CO
242.9 μg/m³
NO₂
13 μg/m³
O₃
89 μg/m³
SO₂
9.7 μg/m³
PM 2.5
14.4 μg/m³
PM 10
15 μg/m³
Today's Hourly Forecast
24-hour breakdown for Guaíba, Rio Grande do Sul
12 AM
21°
Clear
1 AM
20°
Clear
2 AM
20°
Partly Cloudy
3 AM
20°
Partly Cloudy
4 AM
19°
Partly Cloudy
5 AM
20°
Partly Cloudy
6 AM
19°
Partly Cloudy
7 AM
20°
Partly Cloudy
8 AM
20°
Partly Cloudy
9 AM
21°
Partly Cloudy
10 AM
21°
Partly Cloudy
11 AM
21°
Partly cloudy
12 PM
22°
Patchy rain nearby
1 PM
23°
Patchy rain nearby
2 PM
23°
Patchy rain nearby
3 PM
23°
Patchy rain nearby
4 PM
23°
Patchy light drizzle
5 PM
23°
Patchy rain nearby
6 PM
21°
Partly Cloudy
7 PM
21°
Patchy rain nearby
8 PM
21°
Partly Cloudy
9 PM
21°
Partly Cloudy
10 PM
20°
Partly Cloudy
11 PM
19°
Partly Cloudy
3-Day Forecast
Daily overview for Guaíba, Rio Grande do Sul
Today
Patchy rain nearby
23°
/
19°
🌧️ 68% chance of rain
💧 Avg. humidity: 76%
💨 Max wind: 10.8 km/h
🌧️ Total precip: 1.08 mm
☀️ UV Index: 1.4
🌅 Sunrise: 06:48 AM
🌇 Sunset: 05:59 PM
🌙 Waxing Crescent
🌑 Moon: 17% lit
Wed, Apr 22
Partly Cloudy
29°
/
19°
🌧️ 0% chance of rain
💧 Avg. humidity: 70%
💨 Max wind: 13.3 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 6.7
🌅 Sunrise: 06:49 AM
🌇 Sunset: 05:58 PM
🌙 Waxing Crescent
🌑 Moon: 27% lit
Thu, Apr 23
Moderate rain
24°
/
20°
🌧️ 83% chance of rain
💧 Avg. humidity: 90%
💨 Max wind: 14.4 km/h
🌧️ Total precip: 16.83 mm
☀️ UV Index: 4.9
🌅 Sunrise: 06:49 AM
🌇 Sunset: 05:57 PM
🌙 Waxing Crescent
🌑 Moon: 38% lit
Best Time to Visit Guaíba
Plan your trip to Guaíba, 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 Guaíba?
Current conditions in Guaíba: Partly cloudy, temperature 21°C, humidity 88%.
What is the best time to visit Guaíba?
The best time to visit Guaíba is typically December – March. Southern hemisphere summer — warm and generally dry.
What is the climate like in Guaíba?
Guaíba is located at approximately -30.1° latitude. It experiences a temperate southern hemisphere climate.
Does it rain a lot in Guaíba?
The wettest period in Guaíba is typically during June – September. Cooler winter months; indoor activities preferred.
What should I pack for a trip to Guaíba?
For visits to Guaíba during December – March: light clothing and sun protection. For June – September: layers and a waterproof jacket are recommended.
What country is Guaíba in?
Guaíba is located in Brazil, in the state of Rio Grande do Sul.
What are the public holidays in Guaíba in 2026?
View the 2026 public holidays for Guaíba on our Holidays page.
What are the GPS coordinates used for the weather forecast in Guaíba?
The weather forecast for Guaíba uses coordinates -30.1131, -51.3294.
What is the current temperature outside in Guaíba?
The current outdoor temperature in Guaíba is 21°C (70°F) with partly cloudy.
What is the hourly weather forecast for Guaíba today?
Today's hour-by-hour weather breakdown for Guaíba 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 Guaíba tomorrow hour by hour?
Tomorrow's forecast for Guaíba shows a high of 29°C and a low of 19°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in Guaíba?
There is a 68% chance of rain in Guaíba 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 Guaíba?
Yes, there is a 68% chance of rain in Guaíba today — consider carrying an umbrella. Check the hourly forecast above for the most likely rain windows.