🇧🇷 Weather in Guaíba
Map Overlays:
Hourly Forecast for Guaíba
23:00
13°
13%
00:00
13°
13%
01:00
12°
13%
02:00
12°
14%
03:00
12°
14%
04:00
11°
14%
05:00
11°
14%
06:00
11°
14%
07:00
11°
14%
08:00
12°
11%
09:00
14°
8%
10:00
16°
5%
11:00
18°
3%
12:00
19°
2%
13:00
20°
2%
14:00
21°
1%
15:00
21°
1%
16:00
20°
1%
17:00
19°
2%
18:00
17°
3%
19:00
16°
4%
20:00
16°
12%
21:00
16°
11%
22:00
15°
11%
14-Day Forecast for Guaíba
2026-09-01
Patchy rain nearby
19° /
13°
2026-09-02
Sunny
21° /
11°
2026-09-03
Sunny
26° /
12°
2026-09-04
Overcast
16° /
12°
2026-09-05
Overcast
18° /
11°
2026-09-06
Patchy rain nearby
15° /
8°
2026-09-07
Overcast
11° /
4°
Additional Forecasts for Guaíba
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 107.0 μg/m³
O₃ (Ozone) 48.0 μg/m³
NO₂ (Nitrogen Dioxide) 9.0 μg/m³
SO₂ (Sulphur Dioxide) 2.0 μg/m³
PM2.5 (Fine particles) 11.1 μg/m³
PM10 (Coarse particles) 15.8 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Brazil
Weather in Guaíba — FAQ
Answers refreshed each request based on current conditions in Guaíba.
What is the weather like right now in Guaíba?
Right now in Guaíba, Brazil the temperature is 13.7°C (feels like 13.0°C), with clear. Relative humidity is 88% and wind is 6.5 km/h.
What is today's high and low temperature in Guaíba?
Today's forecast high in Guaíba is 18.7°C and the overnight low is 13.2°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Guaíba today?
The chance of precipitation in Guaíba today is 89%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Guaíba differ from nearby cities?
Even short distances can change temperatures noticeably. Guaíba's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.