🇧🇷 Weather in Rio Branco
Map Overlays:
Hourly Forecast for Rio Branco
15:00
37°
6%
16:00
36°
7%
17:00
34°
4%
18:00
32°
1%
19:00
30°
1%
20:00
29°
2%
21:00
28°
2%
22:00
28°
3%
23:00
28°
3%
00:00
27°
6%
01:00
27°
6%
02:00
27°
7%
03:00
26°
12%
04:00
26°
13%
05:00
27°
11%
06:00
25°
14%
07:00
27°
6%
08:00
32°
1%
09:00
35°
1%
10:00
37°
1%
11:00
39°
0%
12:00
41°
3%
13:00
42°
9%
14:00
39°
8%
14-Day Forecast for Rio Branco
2026-10-10
Sunny
40° /
24°
2026-10-11
Sunny
42° /
25°
2026-10-12
Smoky haze
41° /
25°
2026-10-13
Sunny
41° /
25°
2026-10-14
Smoky haze
41° /
25°
2026-10-15
Sunny
37° /
24°
2026-10-16
Mist
32° /
23°
Additional Forecasts for Rio Branco
Air Quality
💨 US EPA Index 2 (Moderate)
CO (Carbon Monoxide) 336.0 μg/m³
O₃ (Ozone) 80.0 μg/m³
NO₂ (Nitrogen Dioxide) 1.0 μg/m³
SO₂ (Sulphur Dioxide) 0.7 μg/m³
PM2.5 (Fine particles) 23.4 μg/m³
PM10 (Coarse particles) 24.9 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Brazil
Weather in Rio Branco — FAQ
Answers refreshed each request based on current conditions in Rio Branco.
What is the weather like right now in Rio Branco?
Right now in Rio Branco, Brazil the temperature is 37.6°C (feels like 38.2°C), with cloudy. Relative humidity is 27% and wind is 6.1 km/h.
What is today's high and low temperature in Rio Branco?
Today's forecast high in Rio Branco is 39.9°C and the overnight low is 23.5°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Rio Branco today?
The chance of precipitation in Rio Branco today is 5%. 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 Rio Branco differ from nearby cities?
Even short distances can change temperatures noticeably. Rio Branco'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.