Weather forecast for 10 daysAçu, Brazil
Weather forecast for the weekend
Sunday 25. Oct 2026
- 36°C
- 23°C
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 28km/hENE 60°
- Humidity: 59%
- UV index: 11
- Sunrise: 05:03 -03
- Sunset: 17:20 -03
- details ▼
Today, on Sunday, 25th of October, sunlight and clouds will take turns dominating the sky.
Temperatures will oscillate between a very hot 36°C at their highest and a temperate 23°C at their lowest.
The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is evaluated at a searing 48°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.
Today's temperature is forecasted to match October's standard peak of 35.7°C.
Sunrise will be at 05:03 and sunset at 17:20; the daylight will last for 12h and 17min.
Temperatures will oscillate between a very hot 36°C at their highest and a temperate 23°C at their lowest.
The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is evaluated at a searing 48°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.
Today's temperature is forecasted to match October's standard peak 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.
Coldest period: today - tomorrow 36°C.
Chance of precipitation
Highest chance: Tuesday 17%.
Long-term weather forecast
- Sunday
- 25. Oct 2026
- 36°C
- 23°C
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 28km/hENE 60°
- Humidity: 59%
- UV index: 11
- Sunrise: 05:03 -03
- Sunset: 17:20 -03
- details ▼
- Monday
- 26. Oct 2026
- 36°C
- 24°C
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0mm
- Wind: 25km/hNE 36°
- Humidity: 53%
- UV index: 11
- Sunrise: 05:03 -03
- Sunset: 17:20 -03
- details ▼
- Tuesday
- 27. Oct 2026
- 37°C
- 23°C
Partly Cloudy
- Precip. probability: 17%
- Precipitation: 0mm
- Wind: 27km/hNE 48°
- Humidity: 51%
- UV index: 11
- Sunrise: 05:02 -03
- Sunset: 17:20 -03
- details ▼
- Wednesday
- 28. Oct 2026
- 39°C
- 24°C
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0mm
- Wind: 18km/hE 93°
- Humidity: 45%
- UV index: 11
- Sunrise: 05:02 -03
- Sunset: 17:20 -03
- details ▼
- Thursday
- 29. Oct 2026
- 38°C
- 24°C
Sunny
- Precip. probability: 7%
- Precipitation: 0mm
- Wind: 21km/hE 84°
- Humidity: 44%
- UV index: 11
- Sunrise: 05:02 -03
- Sunset: 17:20 -03
- details ▼
- Friday
- 30. Oct 2026
- 37°C
- 24°C
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0mm
- Wind: 23km/hENE 72°
- Humidity: 47%
- UV index: 11
- Sunrise: 05:02 -03
- Sunset: 17:20 -03
- details ▼
- Saturday
- 31. Oct 2026
- 38°C
- 24°C
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0mm
- Wind: 23km/hENE 68°
- Humidity: 48%
- UV index: 11
- Sunrise: 05:02 -03
- Sunset: 17:20 -03
- details ▼
- Sunday
- 1. Nov 2026
- 37°C
- 24°C
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0mm
- Wind: 25km/hENE 63°
- Humidity: 48%
- UV index: 11
- Sunrise: 05:01 -03
- Sunset: 17:20 -03
- details ▼
- Monday
- 2. Nov 2026
- 37°C
- 24°C
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0mm
- Wind: 24km/hENE 70°
- Humidity: 46%
- UV index: 11
- Sunrise: 05:01 -03
- Sunset: 17:20 -03
- details ▼
- Tuesday
- 3. Nov 2026
- 38°C
- 24°C
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0mm
- Wind: 24km/hENE 73°
- Humidity: 44%
- UV index: 11
- Sunrise: 05:01 -03
- Sunset: 17:20 -03
- details ▼
Ten-day trends indicate that a combination of dull and sun-filled weather is anticipated.
Rainfall is not expected in Açu in the upcoming days.
The variation in maximum temperature will be negligible during the next few days. Expected highs will hover between 36°C and 39°C, while the nighttime low will be also mostly stable, as the minimum temperature is expected to range between 23°C and 24°C.
Wednesday is expected to be the hottest, reaching up to 39°C; 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 greatly and range between a blisteringly hot 44°C and a dangerously hot 49°C.
October delivers the warmest conditions in Açu, marked by average highs of 35.7°C and lows of 22.7°C.
Rainfall is not expected in Açu in the upcoming days.
The variation in maximum temperature will be negligible during the next few days. Expected highs will hover between 36°C and 39°C, while the nighttime low will be also mostly stable, as the minimum temperature is expected to range between 23°C and 24°C.
Wednesday is expected to be the hottest, reaching up to 39°C; 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 greatly and range between a blisteringly hot 44°C and a dangerously hot 49°C.
October delivers the warmest conditions in Açu, marked by average highs of 35.7°C and lows of 22.7°C.
Updated: Oct 25, 2026 @ 07:00:40 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, in Açu, mostly clear with scattered clouds is expected.
Today, the maximum temperature will be 36°C, while the minimum temperature will be 23°C. The maximum heat index, which represents the influence of relative humidity on air temperature, is calculated to be 48°C.
The highest temperature will be in line with the average maximum of 35.7°C in October. Today, the lowest temperature will be also in line with the average low temperature.
The highest temperature will be in line with the average maximum of 35.7°C 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, the length of the day today will be 12h and 17min.





