Weather forecast for 10 daysAçu, Brazil

Weather forecast for the weekend

Sunday 25. Oct 2026

  • 36°C
  • 23°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0mm
  • Wind: 28km/hNE 51°
  • Humidity: 52%
  • UV index: 11
  • Sunrise: 05:03 -03
  • Sunset: 17:20 -03
  • ▼
Today, expect a mix of sun and clouds throughout the day.
Expected temperature values will span from a torrid 36°C down to a warm 23°C.
The maximum heat index, which reflects the perceived temperature due to humidity levels, is computed to be a blistering 44°C. Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
The forecasted daytime maximum should align with the typical October high of 35.7°C.
Sunrise will be at 05:03 and sunset at 17:20; the daylight will last for 12h and 17min.

10-day overview

Daily temperatures

Warmest day: Wednesday 39°C.
Coldest period: today - tomorrow 36°C.

Chance of precipitation

Highest chance: today 13%.

Long-term weather forecast

  • Sunday
  • 25. Oct 2026
  • 36°C
  • 23°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 13%
  • Precipitation: 0mm
  • Wind: 28km/hNE 51°
  • Humidity: 52%
  • 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: 3%
  • Precipitation: 0mm
  • Wind: 26km/hNE 36°
  • Humidity: 53%
  • UV index: 11
  • Sunrise: 05:03 -03
  • Sunset: 17:20 -03
  • ▼
  • Tuesday
  • 27. Oct 2026
  • 37°C
  • 24°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 10%
  • 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: 9%
  • Precipitation: 0mm
  • Wind: 21km/hE 97°
  • Humidity: 43%
  • UV index: 11
  • Sunrise: 05:02 -03
  • Sunset: 17:20 -03
  • ▼
  • Thursday
  • 29. Oct 2026
  • 38°C
  • 24°C
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 22km/hE 83°
  • Humidity: 45%
  • UV index: 11
  • Sunrise: 05:02 -03
  • Sunset: 17:20 -03
  • ▼
  • Friday
  • 30. Oct 2026
  • 37°C
  • 24°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0mm
  • Wind: 22km/hENE 72°
  • 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: 24km/hENE 68°
  • Humidity: 48%
  • UV index: 11
  • Sunrise: 05:02 -03
  • Sunset: 17:20 -03
  • ▼
  • Sunday
  • 1. Nov 2026
  • 37°C
  • 24°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0mm
  • Wind: 25km/hENE 63°
  • Humidity: 48%
  • UV index: 11
  • Sunrise: 05:01 -03
  • Sunset: 17:20 -03
  • ▼
  • Monday
  • 2. Nov 2026
  • 37°C
  • 24°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Wind: 24km/hENE 70°
  • Humidity: 46%
  • 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: 0%
  • Precipitation: 0mm
  • Wind: 24km/hENE 73°
  • Humidity: 44%
  • UV index: 11
  • Sunrise: 05:01 -03
  • Sunset: 17:20 -03
  • ▼
A combination of clear and overcast weather is expected.
Rainfall is not predicted in Açu in the upcoming period.
The variation in maximum temperature will be negligible over the next several days. Expected highs will hover between 36°C and 39°C, while the lowest nightly temperature differences will be also negligible, as night temperatures will lie between 23°C and 24°C.
With the highest temperature of 39°C, Wednesday will be the hottest day; with a maximum temperature of 36°C, Sunday and Monday will be the coldest days.
Combining with the humidity, the maximum feel-like temperature may increase considerably and range between a scorching 44°C and a burning hot 47°C.
Among all months, October is the warmest in Açu, showing average highs of 35.7°C and average lows of 22.7°C.
Updated: Oct 25, 2026 @ 05:13:14 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Açu, intermittent cloud cover is expected, allowing for some sunshine.

Today, the maximum temperature will be 36°C, while the minimum temperature will be 23°C. The maximum heat index, which indicates how humid air affects the felt temperature, is estimated at 44°C.
The highest temperature today will be in line with the average maximum temperature in October. Today, the lowest temperature will be also in line with the average low temperature.

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

In Açu, today, there will be 12h and 17min of daylight.