Weather forecast for 10 daysIaçu, Brazil

Weather forecast for the weekend

Sunday 1. Nov 2026

  • 37°C
  • 23°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0mm
  • Wind: 19km/hE 93°
  • Humidity: 50%
  • UV index: 11
  • Sunrise: 05:07 -03
  • Sunset: 17:41 -03
  • ▼
On Sunday, 1st of November, a mix of clouds and blue sky is expected.
The highest forecasted temperature is a torrid 37°C, while the lowest temperature will be a warm 23°C.
The maximum heat index, which factors the actual air temperature with the relative humidity, is assessed at a searing 46°C. Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
The maximum temperature for tomorrow is forecasted to be noticeably higher than the average high in October of 31.2°C.
Sunrise will be at 05:07 and sunset at 17:41; tomorrow's daylight will last for 12h and 34min.

10-day overview

Daily temperatures

Warmest period: Friday - Saturday 39°C.
Coldest day: Monday 09.11. 35°C.

Chance of precipitation

Highest chance: Monday 09.11. 32%.

Long-term weather forecast

  • Saturday
  • 31. Oct 2026
  • min.
  • 23°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 12km/hENE 77°
  • Humidity: 82%
  • UV index: 0
  • Sunrise: 05:07 -03
  • Sunset: 17:41 -03
  • ▼
  • Sunday
  • 1. Nov 2026
  • 37°C
  • 23°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0mm
  • Wind: 19km/hE 93°
  • Humidity: 50%
  • UV index: 11
  • Sunrise: 05:07 -03
  • Sunset: 17:41 -03
  • ▼
  • Monday
  • 2. Nov 2026
  • 36°C
  • 23°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 20%
  • Precipitation: 0mm
  • Wind: 20km/hE 88°
  • Humidity: 50%
  • UV index: 11
  • Sunrise: 05:06 -03
  • Sunset: 17:41 -03
  • ▼
  • Tuesday
  • 3. Nov 2026
  • 37°C
  • 22°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0mm
  • Wind: 16km/hENE 78°
  • Humidity: 49%
  • UV index: 11
  • Sunrise: 05:06 -03
  • Sunset: 17:42 -03
  • ▼
  • Wednesday
  • 4. Nov 2026
  • 38°C
  • 22°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 11km/hENE 66°
  • Humidity: 48%
  • UV index: 11
  • Sunrise: 05:06 -03
  • Sunset: 17:42 -03
  • ▼
  • Thursday
  • 5. Nov 2026
  • 38°C
  • 22°C
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 11km/hENE 64°
  • Humidity: 48%
  • UV index: 11
  • Sunrise: 05:06 -03
  • Sunset: 17:42 -03
  • ▼
  • Friday
  • 6. Nov 2026
  • 39°C
  • 23°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 10km/hENE 58°
  • Humidity: 46%
  • UV index: 11
  • Sunrise: 05:05 -03
  • Sunset: 17:43 -03
  • ▼
  • Saturday
  • 7. Nov 2026
  • 39°C
  • 23°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 11km/hENE 71°
  • Humidity: 46%
  • UV index: 11
  • Sunrise: 05:05 -03
  • Sunset: 17:43 -03
  • ▼
  • Sunday
  • 8. Nov 2026
  • 37°C
  • 24°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0mm
  • Wind: 11km/hENE 70°
  • Humidity: 48%
  • UV index: 11
  • Sunrise: 05:05 -03
  • Sunset: 17:43 -03
  • ▼
  • Monday
  • 9. Nov 2026
  • 35°C
  • 23°C
PM Showers
PM Showers
  • Precip. probability: 32%
  • Precipitation: 1mm
  • Wind: 14km/hE 95°
  • Humidity: 52%
  • UV index: 11
  • Sunrise: 05:05 -03
  • Sunset: 17:44 -03
  • ▼
Models point to a combination of primarily dull and occasionally sunny and damp weather is anticipated.
With a 32% probability, rainfall is predicted only for next Monday. The precipitation will be minimal at 1mm.
In the upcoming days, the maximum temperature will vary between 35°C and 39°C, while the overnight low will be nearly unchanged, as the minimum temperature will fluctuate between 22°C and 24°C.
The hottest days will be Friday and next Saturday, with a maximum of 39°C; expect the coldest day on next Monday with a high of 35°C.
Taking the humidity into consideration, the maximum feel-like temperature may increase substantially and vary between a torridly hot 41°C and a burning hot 49°C.
Updated: Oct 31, 2026 @ 22:57:13 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Iaçu, some passing clouds may drift through, but the sun will shine at times.

Tomorrow, the maximum temperature in Iaçu, Brazil, will be 37°C, while the minimum temperature will be 23°C. The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is calculated to be 46°C.
The maximum temperature tomorrow will be uncommonly higher than the average highest temperature of 31.2°C in October. The lowest temperature will be a few degrees higher than the average low of 20.6°C.

On Sunday, in Iaçu, sunrise will be at 05:07 and sunset at 17:41 (-03).

Tomorrow, the daylight will last for 12h and 34min.