Weather forecast for 10 daysIaçu, Brazil
Weather forecast for the weekend
Saturday 31. Oct 2026
- 37°C
- 23°C
AM Clouds / PM Sun
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 11km/hENE 63°
- Humidity: 58%
- UV index: 11
- Sunrise: 05:07 -03
- Sunset: 17:41 -03
- details ▼
Today, on Saturday, 31st of October, cloudy skies are expected in the morning. However, sunshine will break through by the afternoon.
The temperature will fluctuate from a high of a sweltering 37°C to a low of a temperate 23°C.
The maximum heat index, which reflects the perceived temperature due to humidity levels, is assessed at a searing 50°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.
Expect a temperature notably higher than the normal October maximum of 31.2°C.
Sunrise was at 05:07 and sunset will be at 17:41; the daylight will last for 12h and 34min.
The temperature will fluctuate from a high of a sweltering 37°C to a low of a temperate 23°C.
The maximum heat index, which reflects the perceived temperature due to humidity levels, is assessed at a searing 50°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.
Expect a temperature notably higher than the normal October maximum of 31.2°C.
Sunrise was at 05:07 and sunset will be at 17:41; the daylight will last for 12h and 34min.
Sunday 1. Nov 2026
- 37°C
- 23°C
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0mm
- Wind: 19km/hE 90°
- Humidity: 50%
- UV index: 11
- Sunrise: 05:07 -03
- Sunset: 17:41 -03
- details ▼
Tomorrow, in Iaçu, a partly cloudy outlook will keep the sky interesting throughout the day.
The maximum predicted temperature is a very hot 37°C, while the minimum temperature will be a temperate 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 forecasted high temperature will be noticeably higher than the average October peak of 31.2°C.
Sunrise will be at 05:07 and sunset at 17:41; tomorrow's daylight will last for 12h and 34min.
The maximum predicted temperature is a very hot 37°C, while the minimum temperature will be a temperate 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 forecasted high temperature will be noticeably higher than the average October peak 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.
Minimum temperature: 36°C.
Minimum temperature: 36°C.
Chance of precipitation
Highest chance: 19%.
Long-term weather forecast
- Saturday
- 31. Oct 2026
- 37°C
- 23°C
AM Clouds / PM Sun
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 11km/hENE 63°
- Humidity: 58%
- UV index: 11
- Sunrise: 05:07 -03
- Sunset: 17:41 -03
- details ▼
- Sunday
- 1. Nov 2026
- 37°C
- 23°C
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0mm
- Wind: 19km/hE 90°
- Humidity: 50%
- UV index: 11
- Sunrise: 05:07 -03
- Sunset: 17:41 -03
- details ▼
- Monday
- 2. Nov 2026
- 36°C
- 23°C
Mostly Sunny
- Precip. probability: 16%
- Precipitation: 0mm
- Wind: 20km/hE 88°
- Humidity: 51%
- UV index: 11
- Sunrise: 05:06 -03
- Sunset: 17:41 -03
- details ▼
- Tuesday
- 3. Nov 2026
- 37°C
- 22°C
Mostly Sunny
- Precip. probability: 19%
- Precipitation: 0mm
- Wind: 17km/hENE 78°
- Humidity: 49%
- UV index: 11
- Sunrise: 05:06 -03
- Sunset: 17:42 -03
- details ▼
- Wednesday
- 4. Nov 2026
- 38°C
- 23°C
Partly Cloudy
- Precip. probability: 12%
- Precipitation: 0mm
- Wind: 11km/hENE 65°
- Humidity: 47%
- UV index: 11
- Sunrise: 05:06 -03
- Sunset: 17:42 -03
- details ▼
- Thursday
- 5. Nov 2026
- 38°C
- 22°C
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0mm
- Wind: 11km/hENE 57°
- Humidity: 48%
- UV index: 11
- Sunrise: 05:06 -03
- Sunset: 17:42 -03
- details ▼
- Friday
- 6. Nov 2026
- 39°C
- 23°C
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0mm
- Wind: 10km/hNE 53°
- Humidity: 46%
- UV index: 11
- Sunrise: 05:05 -03
- Sunset: 17:43 -03
- details ▼
- Saturday
- 7. Nov 2026
- 39°C
- 23°C
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0mm
- Wind: 13km/hENE 76°
- Humidity: 47%
- UV index: 11
- Sunrise: 05:05 -03
- Sunset: 17:43 -03
- details ▼
- Sunday
- 8. Nov 2026
- 36°C
- 23°C
Partly Cloudy
- Precip. probability: 12%
- Precipitation: 0mm
- Wind: 13km/hE 94°
- Humidity: 51%
- UV index: 11
- Sunrise: 05:05 -03
- Sunset: 17:43 -03
- details ▼
- Monday
- 9. Nov 2026
- 36°C
- 23°C
Partly Cloudy
- Precip. probability: 19%
- Precipitation: 0mm
- Wind: 15km/hE 88°
- Humidity: 53%
- UV index: 11
- Sunrise: 05:05 -03
- Sunset: 17:44 -03
- details ▼
For the next ten days, primarily overcast and occasionally dry and sunny weather is expected.
Rainfall is not forecasted in Iaçu in the upcoming days.
Fluctuations in temperature will be barely perceptible in the forecast period ahead. Maximum temperatures will fall between 36°C and 39°C, while the overnight low will be also nearly unchanged, as night temperatures will lie between 22°C and 23°C.
With a maximum temperature of 39°C, Friday and next Saturday will be the hottest days in Iaçu; the coldest days will be Monday, next Sunday and Monday, with a maximum of 36°C.
Taking the humidity into consideration, the maximum feel-like temperature may increase significantly and vary between a scorching 44°C and a life-threatening 50°C.
Rainfall is not forecasted in Iaçu in the upcoming days.
Fluctuations in temperature will be barely perceptible in the forecast period ahead. Maximum temperatures will fall between 36°C and 39°C, while the overnight low will be also nearly unchanged, as night temperatures will lie between 22°C and 23°C.
With a maximum temperature of 39°C, Friday and next Saturday will be the hottest days in Iaçu; the coldest days will be Monday, next Sunday and Monday, with a maximum of 36°C.
Taking the humidity into consideration, the maximum feel-like temperature may increase significantly and vary between a scorching 44°C and a life-threatening 50°C.
Updated: Oct 31, 2026 @ 08:34:35 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
Today, morning overcast will gradually clear, revealing a brighter, sunnier afternoon.
Today, the maximum temperature in Iaçu will be 37°C, while the minimum temperature will be 23°C. The maximum heat index, which reflects the perceived temperature due to humidity levels, is evaluated at 50°C.
The highest temperature will be significantly higher than the average maximum of 31.2°C in October. Today, the lowest temperature will be relatively higher than the average low temperature.
The highest temperature will be significantly higher than the average maximum of 31.2°C in October. Today, the lowest temperature will be relatively higher than the average low temperature.
On Saturday, in Iaçu, sunrise was at 05:07 and sunset will be at 17:41 (-03).
Today, the daylight will last for 12h and 34min.
Tomorrow, variable cloud cover will persist, but sunshine will break through.
Tomorrow, the highest temperature will be 37°C, while the lowest temperature will be 23°C. The maximum heat index, which combines air temperature and relative humidity, is computed to be 46°C.
The highest temperature will be uncommonly higher than the average maximum of 31.2°C in October. Tomorrow, the lowest temperature will be moderately higher than the average low temperature.
The highest temperature will be uncommonly higher than the average maximum of 31.2°C in October. Tomorrow, the lowest temperature will be moderately higher than the average low temperature.
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.





