Weather forecast for 10 daysIaçu, Brazil
Weather forecast for the weekend
Sunday 1. Nov 2026
- 37°C
- 23°C
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0mm
- Wind: 19km/hE 93°
- Humidity: 50%
- UV index: 11
- Sunrise: 05:07 -03
- Sunset: 17:41 -03
- details ▼
On Sunday, in Iaçu, a pleasant mix of sun and clouds will define the day.
The temperature is anticipated to oscillate between a maximum of a very hot 37°C and a minimum of a temperate 23°C.
The maximum heat index, which reflects the perceived temperature due to humidity levels, is appraised at a dangerously hot 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 for the day will 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.
The temperature is anticipated to oscillate between a maximum of a very hot 37°C and a minimum of a temperate 23°C.
The maximum heat index, which reflects the perceived temperature due to humidity levels, is appraised at a dangerously hot 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 for the day will 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.
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
- Precip. probability: 7%
- Precipitation: 0mm
- Wind: 12km/hE 79°
- Humidity: 78%
- UV index: 0
- Sunrise: 05:07 -03
- Sunset: 17:41 -03
- details ▼
- Sunday
- 1. Nov 2026
- 37°C
- 23°C
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0mm
- Wind: 19km/hE 93°
- Humidity: 50%
- UV index: 11
- Sunrise: 05:07 -03
- Sunset: 17:41 -03
- details ▼
- Monday
- 2. Nov 2026
- 36°C
- 23°C
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0mm
- Wind: 20km/hE 88°
- Humidity: 50%
- UV index: 11
- Sunrise: 05:06 -03
- Sunset: 17:41 -03
- details ▼
- Tuesday
- 3. Nov 2026
- 37°C
- 22°C
Partly Cloudy
- Precip. probability: 21%
- Precipitation: 0mm
- Wind: 16km/hENE 78°
- Humidity: 49%
- UV index: 11
- Sunrise: 05:06 -03
- Sunset: 17:42 -03
- details ▼
- Wednesday
- 4. Nov 2026
- 38°C
- 22°C
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0mm
- Wind: 11km/hENE 67°
- Humidity: 48%
- UV index: 11
- Sunrise: 05:06 -03
- Sunset: 17:42 -03
- details ▼
- Thursday
- 5. Nov 2026
- 38°C
- 22°C
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
- details ▼
- Friday
- 6. Nov 2026
- 39°C
- 23°C
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 10km/hENE 59°
- 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: 11km/hENE 72°
- Humidity: 46%
- UV index: 11
- Sunrise: 05:05 -03
- Sunset: 17:43 -03
- details ▼
- Sunday
- 8. Nov 2026
- 37°C
- 24°C
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0mm
- Wind: 11km/hENE 71°
- Humidity: 48%
- UV index: 11
- Sunrise: 05:05 -03
- Sunset: 17:43 -03
- details ▼
- Monday
- 9. Nov 2026
- 35°C
- 23°C
PM Showers
- Precip. probability: 32%
- Precipitation: 1mm
- Wind: 14km/hE 96°
- Humidity: 52%
- UV index: 11
- Sunrise: 05:05 -03
- Sunset: 17:44 -03
- details ▼
Models point to a combination of primarily dull and occasionally clear and showery weather is forecasted.
With a probability of 32%, rainfall is expected only on next Monday. The precipitation will be minimal at 1mm.
In the coming days, the maximum temperature will range between 35°C and 39°C, while the lowest nighttime temperatures will be relatively consistent, as the minimum temperature is expected to range between 22°C and 24°C.
The hottest days in Iaçu will be Friday and next Saturday, with a maximum of 39°C; the lowest daytime temperature of the period will be reached on next Monday, peaking at 35°C.
Taking the humidity into consideration, the maximum feel-like temperature may increase considerably and range between a torridly hot 41°C and a blazing hot 49°C.
With a probability of 32%, rainfall is expected only on next Monday. The precipitation will be minimal at 1mm.
In the coming days, the maximum temperature will range between 35°C and 39°C, while the lowest nighttime temperatures will be relatively consistent, as the minimum temperature is expected to range between 22°C and 24°C.
The hottest days in Iaçu will be Friday and next Saturday, with a maximum of 39°C; the lowest daytime temperature of the period will be reached on next Monday, peaking at 35°C.
Taking the humidity into consideration, the maximum feel-like temperature may increase considerably and range between a torridly hot 41°C and a blazing hot 49°C.
Updated: Oct 31, 2026 @ 21:39:47 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 Iaçu, some passing clouds may drift through, but the sun will shine at times.
Tomorrow, the highest temperature will be 37°C, while the lowest temperature will be 23°C. The maximum heat index, which adjusts the air temperature based on humidity, is computed to be 46°C.
The maximum temperature will be significantly higher than the average highest temperature of 31.2°C in October. The lowest temperature will be relatively higher than the average low of 20.6°C.
The maximum temperature will be significantly higher than the average highest temperature of 31.2°C in October. The lowest temperature will be relatively 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.





