Weather forecast for 10 daysAçu, Brazil

Weather forecast for the weekend

Sunday 25. Oct 2026

  • 35°C
  • 23°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 29km/hNE 34°
  • Humidity: 49%
  • UV index: 11
  • Sunrise: 05:03 -03
  • Sunset: 17:20 -03
  • ▼
Today, on Sunday, 25th of October, thin clouds will pass through at times, but overall, it will remain bright.
The maximum temperature will be a torrid 35°C, while the minimum forecasted temperature is a moderately hot 23°C.
The maximum heat index, which reflects the perceived temperature due to humidity levels, is computed to be a blisteringly hot 40°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Today's peak temperature is anticipated to align with October's common high of 35.7°C.
Sunrise was at 05:03 and sunset will be at 17:20; the daylight will last for 12h and 17min.

10-day overview

Daily temperatures

Warmest day: Wednesday 39°C.
Coldest day: today 35°C.

Chance of precipitation

Highest chance: Wednesday 15%.

Long-term weather forecast

  • Sunday
  • 25. Oct 2026
  • 35°C
  • 23°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 29km/hNE 34°
  • Humidity: 49%
  • UV index: 11
  • Sunrise: 05:03 -03
  • Sunset: 17:20 -03
  • ▼
  • Monday
  • 26. Oct 2026
  • 36°C
  • 24°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 26km/hNE 35°
  • Humidity: 53%
  • UV index: 11
  • Sunrise: 05:03 -03
  • Sunset: 17:20 -03
  • ▼
  • Tuesday
  • 27. Oct 2026
  • 37°C
  • 24°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0mm
  • Wind: 26km/hNE 47°
  • Humidity: 51%
  • UV index: 11
  • Sunrise: 05:02 -03
  • Sunset: 17:20 -03
  • ▼
  • Wednesday
  • 28. Oct 2026
  • 39°C
  • 24°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 15%
  • Precipitation: 0mm
  • Wind: 18km/hE 92°
  • Humidity: 45%
  • UV index: 11
  • Sunrise: 05:02 -03
  • Sunset: 17:20 -03
  • ▼
  • Thursday
  • 29. Oct 2026
  • 38°C
  • 24°C
Sunny
Sunny
  • Precip. probability: 10%
  • Precipitation: 0mm
  • Wind: 22km/hE 80°
  • Humidity: 45%
  • UV index: 11
  • Sunrise: 05:02 -03
  • Sunset: 17:20 -03
  • ▼
  • Friday
  • 30. Oct 2026
  • 37°C
  • 24°C
Sunny
Sunny
  • Precip. probability: 9%
  • Precipitation: 0mm
  • Wind: 24km/hENE 69°
  • Humidity: 47%
  • UV index: 11
  • Sunrise: 05:02 -03
  • Sunset: 17:20 -03
  • ▼
  • Saturday
  • 31. Oct 2026
  • 38°C
  • 24°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 23km/hENE 67°
  • Humidity: 47%
  • UV index: 11
  • Sunrise: 05:02 -03
  • Sunset: 17:20 -03
  • ▼
  • Sunday
  • 1. Nov 2026
  • 38°C
  • 24°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 25km/hENE 66°
  • Humidity: 47%
  • UV index: 11
  • Sunrise: 05:01 -03
  • Sunset: 17:20 -03
  • ▼
  • Monday
  • 2. Nov 2026
  • 38°C
  • 24°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Wind: 23km/hENE 74°
  • Humidity: 45%
  • UV index: 11
  • Sunrise: 05:01 -03
  • Sunset: 17:20 -03
  • ▼
  • Tuesday
  • 3. Nov 2026
  • 38°C
  • 24°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0mm
  • Wind: 23km/hENE 76°
  • Humidity: 44%
  • UV index: 11
  • Sunrise: 05:01 -03
  • Sunset: 17:20 -03
  • ▼
For the coming ten days, a combination of clear and gloomy weather is predicted.
Rainfall is not forecasted in Açu in the upcoming days.
In the coming days, the maximum temperature will vary between 35°C and 39°C, while changes in the overnight low will be barely noticeable, as the lowest temperatures will remain in the range of 23°C to 24°C.
Expect the hottest day on Wednesday, with temperatures peaking at 39°C; today is the coldest day, with a maximum temperature of 35°C.
Combining with the humidity, the maximum feel-like temperature may increase substantially and range between an extremely hot 40°C and a life-threatening 49°C.
Açu experiences its warmest weather in October, with high temperatures averaging 35.7°C and lows at 22.7°C.
Updated: Oct 25, 2026 @ 13:16:46 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, partly cloudy skies will persist, making for a mix of sun and clouds.

Today, the highest temperature will be 35°C, while the lowest temperature will be 23°C. The maximum heat index, which reflects the perceived temperature due to humidity levels, is estimated at 40°C.
Today, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature today will be also in line with the average low temperature.

On Sunday, in Açu, sunrise was at 05:03 and sunset will be at 17:20 (-03).

In Açu, the length of the day today will be 12h and 17min.