Weather forecast for 10 daysCastelo do Piauí, Brazil

Weather forecast for the weekend

Sunday 1. Nov 2026

  • 39°C
  • 26°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 15km/hENE 77°
  • Humidity: 25%
  • UV index: 9
  • Sunrise: 05:20 -03
  • Sunset: 17:38 -03
  • ▼
Today, on Sunday, 1st of November, sunshine will prevail for most of the day.
Expected temperatures will peak at a sizzling 39°C and dip to a minimum of a temperate 26°C.
Sunrise was at 05:20 and sunset will be at 17:38; the daylight will last for 12h and 18min.

10-day overview

Daily temperatures

Warmest period: Thursday - Saturday 40°C.
Coldest day: Tuesday 10.11. 38°C.

Chance of precipitation

Highest chance: Tuesday 16%.

Long-term weather forecast

  • Sunday
  • 1. Nov 2026
  • 39°C
  • 26°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 15km/hENE 77°
  • Humidity: 25%
  • UV index: 9
  • Sunrise: 05:20 -03
  • Sunset: 17:38 -03
  • ▼
  • Monday
  • 2. Nov 2026
  • 39°C
  • 26°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0mm
  • Wind: 25km/hE 87°
  • Humidity: 36%
  • UV index: 11
  • Sunrise: 05:20 -03
  • Sunset: 17:38 -03
  • ▼
  • Tuesday
  • 3. Nov 2026
  • 39°C
  • 25°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 16%
  • Precipitation: 0mm
  • Wind: 23km/hE 88°
  • Humidity: 35%
  • UV index: 11
  • Sunrise: 05:20 -03
  • Sunset: 17:39 -03
  • ▼
  • Wednesday
  • 4. Nov 2026
  • 39°C
  • 25°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Wind: 22km/hE 82°
  • Humidity: 35%
  • UV index: 11
  • Sunrise: 05:20 -03
  • Sunset: 17:39 -03
  • ▼
  • Thursday
  • 5. Nov 2026
  • 40°C
  • 25°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 19km/hENE 78°
  • Humidity: 35%
  • UV index: 11
  • Sunrise: 05:20 -03
  • Sunset: 17:39 -03
  • ▼
  • Friday
  • 6. Nov 2026
  • 40°C
  • 25°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 19km/hENE 76°
  • Humidity: 34%
  • UV index: 11
  • Sunrise: 05:20 -03
  • Sunset: 17:39 -03
  • ▼
  • Saturday
  • 7. Nov 2026
  • 40°C
  • 25°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Wind: 19km/hENE 78°
  • Humidity: 35%
  • UV index: 11
  • Sunrise: 05:20 -03
  • Sunset: 17:39 -03
  • ▼
  • Sunday
  • 8. Nov 2026
  • 39°C
  • 26°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 17km/hENE 73°
  • Humidity: 39%
  • UV index: 11
  • Sunrise: 05:19 -03
  • Sunset: 17:39 -03
  • ▼
  • Monday
  • 9. Nov 2026
  • 39°C
  • 26°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0mm
  • Wind: 17km/hENE 75°
  • Humidity: 41%
  • UV index: 11
  • Sunrise: 05:19 -03
  • Sunset: 17:40 -03
  • ▼
  • Tuesday
  • 10. Nov 2026
  • 38°C
  • 26°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0mm
  • Wind: 19km/hE 85°
  • Humidity: 41%
  • UV index: 11
  • Sunrise: 05:19 -03
  • Sunset: 17:40 -03
  • ▼
Primarily mostly clear and occasionally dull weather is predicted.
Rain is not anticipated in Castelo do Piauí in the upcoming days.
The temperature shift across days will be subtle during the next few days. Expected highs will hover between 38°C and 40°C, while the lowest nighttime temperatures will be also relatively consistent, as the lowest temperatures will remain in the range of 25°C to 26°C.
Thursday through Saturday, with the highest temperature of 40°C, will be the hottest days; expect the coldest day on next Tuesday with a high of 38°C.
Including the humidity's impact, the maximum feel-like temperature may increase considerably and range between a sweltering 39°C and a searing 46°C.
Updated: Nov 1, 2026 @ 17:39:00 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, bright conditions and mild breezes are expected.

Today, the maximum temperature will be 39°C, while the minimum temperature will be 26°C.

On Sunday, in Castelo do Piauí, sunrise was at 05:20 and sunset will be at 17:38 (-03).

In Castelo do Piauí, today, there will be 12h and 18min of daylight.