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Rain and partly cloudy skies: see the weather forecast for Rio Branco

Por Equipe Editorial CifraNET · 15/06/2026
Rain and partly cloudy skies: see the weather forecast for Rio Branco
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Rio Branco will have a week of varied weather between Monday (15) and Sunday (21). The first few days will be marked by rain and partly cloudy skies, with a 100% chance of precipitation from Monday to Wednesday.

From Thursday onwards, the weather tends to improve progressively, with a reduction in rain and an opening of the sun over the weekend. Temperatures vary between minimums of 22°C and maximums of 34°C throughout the period.

Temperature for the next few days in Rio Branco

- Monday, June 15th: minimum of 23°C and maximum of 31°C.
- Tuesday, June 16th: minimum of 24°C and maximum of 31°C.
- Wednesday, June 17th: minimum of 22°C and maximum of 31°C.
- Thursday, June 18th: minimum of 22°C and maximum of 32°C.
- Friday, June 19th: minimum of 22°C and maximum of 33°C.
- Saturday, June 20th: minimum of 22°C and maximum of 33°C.
- Sunday, June 21st: minimum of 23°C and maximum of 34°C.

Weather forecast in Rio Branco
Monday, June 15:
Monday will be partly cloudy with light rain in Rio Branco. Temperatures vary between a minimum of 23°C and a maximum of 31°C. The thermal sensation throughout the day varies between 24°C in the morning, 34°C during the day, 30°C in the afternoon and 26°C at night. The probability of rain is 100%, with an estimated volume of 2.22 mm. Air humidity will be 80%, and winds will blow at 2.12 m/s. The ultraviolet index will be high, reaching 9.32.

Tuesday, June 16:
On Tuesday, Rio Branco will have partly cloudy skies with moderate rain. Temperatures range from a minimum of 24°C to a maximum of 31°C. The thermal sensation varies between 25°C in the morning, 32°C during the day, 30°C in the afternoon and 25°C at night. The probability of rain remains at 100%, with a volume of 3.59 mm - the highest of the week. Air humidity rises to 85%, and winds blow at 2.0 m/s. The ultraviolet index drops to 4.09.

Wednesday, June 17:
Wednesday maintains the pattern of partly cloudy skies with light rain. Temperatures vary between a minimum of 22°C and a maximum of 31°C. The thermal sensation is 23°C in the morning, 34°C during the day, 26°C in the afternoon and 23°C at night. The probability of rain is 100%, with an estimated volume of 1.87 mm. Air humidity drops to 62%, and the winds are the most intense of the week, at 3.36 m/s. The ultraviolet index rises again, reaching 9.31.

Thursday, June 18:
On Thursday, the sky will be overcast in Rio Branco. Temperatures vary between a minimum of 22°C and a maximum of 32°C. The thermal sensation varies between 22°C in the morning, 32°C during the day, 36°C in the afternoon and 25°C at night. The probability of rain is 80%, but with no estimated volume of precipitation. The air humidity is 69%, and the winds blow weaker, at 1.73 m/s. The ultraviolet index will be 8.71.

Friday, June 19:
Friday brings relief from the rain, with partly cloudy skies and patchy clouds forecast. Temperatures vary between a minimum of 22°C and a maximum of 33°C. The thermal sensation is 23°C in the morning, 33°C during the day, 30°C in the afternoon and 26°C at night. The probability of rain drops to zero, with no precipitation volume expected. Air humidity drops to 63%, and winds blow at 2.27 m/s. The ultraviolet index will be low, at 0.7.

Saturday, June 20:
Saturday will have partly cloudy skies with a chance of light rain. Temperatures vary between a minimum of 22°C and a maximum of 33°C. The thermal sensation varies between 23°C in the morning, 33°C during the day, 32°C in the afternoon and 28°C at night. The probability of rain is 28%, with an estimated volume of 0.42 mm. The air humidity is 61%, and the winds blow at 1.5 m/s. The ultraviolet index will be 1.0.

Sunday, June 21st:
Sunday ends the week with clear skies and stable weather in Rio Branco. Temperatures vary between a minimum of 23°C and a maximum of 34°C. The thermal sensation is 24°C in the morning, 33°C during the day, 31°C in the afternoon and 26°C at night. There is no rain forecast, and air humidity reaches its lowest level of the week, at 58%. Winds blow at 1.64 m/s, and the ultraviolet index remains low at 1.0.

Will it rain in Rio Branco?
The forecast indicates that Rio Branco will have the rainiest days of the week between Monday and Wednesday, with a 100% probability of rain on the three days and volumes reaching 3.59 mm on Tuesday. On Thursday, despite the overcast sky and the 80% probability of rain, there is no estimate of the amount of precipitation.

From Friday onwards, the weather changes significantly, with no rain forecast for the next two days. The weekend brings more stable conditions, with higher temperatures, open skies on Sunday and falling humidity, signaling a turnaround in the weather pattern in the capital of Acre.

The information contained in this text is from Open Weather. The texts generated by Artificial Intelligence on CNN Brasil are based on information collected and checked by journalists. Click here to find out more

Source: CNN

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