Acre weather
Today's sky, the hour-by-hour rain chance and the 16-day forecast for Acre, Brazil. Like most weather services, we show Acre at one spot: Rio Branco, its largest city. At 6:30 PM local time it was partly cloudy and 26°C (79°F). Light rain for 6 of the next 24 hours (under 1 mm/h, 1.1 mm total) — cloudy, but fine to be out. Best months for weather: May–Aug.
Current conditions
- Clouds
- 69%
- Chance of rain
- 49%
- Rain
- 0.0 mm/h
Hourly Forecast
Light rain for 6 of the next 24 hours (under 1 mm/h, 1.1 mm total) — cloudy, but fine to be out
Daily Forecast
Best Time to Visit
Peak season May–AugOff season Nov–Mar
About Rio Branco weather
Is it raining in Rio Branco right now?
No. It’s partly cloudy and 26° right now. Light rain for 6 of the next 24 hours (under 1 mm/h, 1.1 mm total) — cloudy, but fine to be out.
What’s the weather like in Rio Branco this week?
Over the next 7 days, expect highs of 32–35° and lows of 22–24°. Rain is likely on 6 of 7 days (Saturday, Sunday, Monday, Tuesday, Thursday, Friday). The driest day looks like Wednesday.
Has it been raining in Rio Branco lately?
In the past 7 days, Rio Branco had 5 rainy days and 34.1 mm of rain in total.
What should I pack for Rio Branco?
For the coming week, bring an umbrella or rain jacket, light, breathable clothes and sunscreen.
Acre weather by month
When is the best time to visit Acre?
Based on weather alone, the best time to visit Acre is May–Aug, according to NASA's 2001–2025 climate averages. Nov–Mar tends to be the least pleasant. Average highs run from 28°C (82°F) in May to 34°C (92°F) in September.
What is the rainiest month in Acre?
January is the wettest month, with about 258 mm (10.2 in) of rain on average. July is the driest, with about 25 mm (1.0 in).
What is the hottest month in Acre?
September is the warmest, with average highs of 34°C (92°F) and lows of 22°C (72°F). May is the coolest, with highs of 28°C (82°F) and lows of 21°C (70°F).
Does Acre have a rainy season?
Yes. Nov–Apr is the rainy season (150 mm or more a month), while Jun–Aug is usually dry (under 60 mm).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis for Rio Branco), forecast and current conditions from Open-Meteo. Page updated . How we rate months
Compare places in Acre
Weather can differ a lot within Acre: coasts, hills and mountains each have their own climate.
| Place | Best months | Rainy months | Highs | Rain a year |
|---|---|---|---|---|
| Rio Branco | May–Aug | Nov–Apr | 28–34°C | 1,738 mm |
| Cruzeiro do Sul | Jun–Aug | Oct–Apr | 28–32°C | 1,967 mm |
| Sena Madureira | May–Aug | Nov–Apr | 28–33°C | 1,756 mm |
| Tarauacá | Jun–Aug | Oct–Apr | 28–32°C | 2,068 mm |
| Feijó | Jun–Aug | Oct–Apr | 28–32°C | 2,068 mm |
| Brasiléia | May–Aug | Nov–Mar | 28–34°C | 1,621 mm |
| Senador Guiomard | May–Aug | Nov–Apr | 28–34°C | 1,738 mm |
| Marechal Thaumaturgo | Jun–Jul | Nov–Apr | 28–34°C | 1,753 mm |
| Mâncio Lima | Jun–Aug | Oct–Apr | 28–32°C | 1,869 mm |
| Porto Acre | May–Aug | Nov–Apr | 28–33°C | 1,800 mm |
| Epitaciolândia | May–Aug | Nov–Mar | 28–34°C | 1,621 mm |
| Xapuri | May–Aug | Nov–Mar | 28–34°C | 1,615 mm |