Weather forecast for 10 daysCastanhal, Brazil
Weather forecast for the weekend
Saturday 24. Oct 2026
- 35°C
- 24°C
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0mm
- Wind: 19km/hNE 48°
- Humidity: 62%
- UV index: 11
- Sunrise: 05:51 -03
- Sunset: 18:00 -03
- details ▼
Tomorrow, in Castanhal, variable cloud cover will persist, but sunshine will break through.
The temperature is anticipated to oscillate between a maximum of a steamy 35°C and a minimum of a temperate 24°C.
The maximum heat index, which represents the influence of relative humidity on air temperature, is calculated to be a burning hot 46°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
October's standard high of 33.5°C is expected to be reached during the day.
Sunrise will be at 05:51 and sunset at 18:00; tomorrow's daylight will last for 12h and 9min.
The temperature is anticipated to oscillate between a maximum of a steamy 35°C and a minimum of a temperate 24°C.
The maximum heat index, which represents the influence of relative humidity on air temperature, is calculated to be a burning hot 46°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
October's standard high of 33.5°C is expected to be reached during the day.
Sunrise will be at 05:51 and sunset at 18:00; tomorrow's daylight will last for 12h and 9min.
Sunday 25. Oct 2026
- 35°C
- 24°C
Partly Cloudy
- Precip. probability: 12%
- Precipitation: 0mm
- Wind: 20km/hNE 46°
- Humidity: 61%
- UV index: 11
- Sunrise: 05:51 -03
- Sunset: 18:00 -03
- details ▼
On Sunday, in Castanhal, clouds and sunshine will create a dynamic sky throughout the day.
The temperature variation is forecasted to range from a maximum of a torrid 35°C to a minimum of a temperate 24°C.
The highest temperature for Sunday is expected to reflect October's average of 33.5°C.
Sunrise will be at 05:51 and sunset at 18:00; the daylight will last for 12h and 9min.
The temperature variation is forecasted to range from a maximum of a torrid 35°C to a minimum of a temperate 24°C.
The highest temperature for Sunday is expected to reflect October's average of 33.5°C.
Sunrise will be at 05:51 and sunset at 18:00; the daylight will last for 12h and 9min.
10-day overview
Daily temperatures
Warmest period: Monday - Wednesday 36°C.
Minimum temperature: 35°C.
Minimum temperature: 35°C.
Chance of precipitation
Highest chance: tomorrow 24%.
Long-term weather forecast
- Friday
- 23. Oct 2026
- 35°C
- 24°C
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0mm
- Wind: 18km/hNE 52°
- Humidity: 71%
- UV index: 11
- Sunrise: 05:51 -03
- Sunset: 18:00 -03
- details ▼
- Saturday
- 24. Oct 2026
- 35°C
- 24°C
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0mm
- Wind: 19km/hNE 48°
- Humidity: 62%
- UV index: 11
- Sunrise: 05:51 -03
- Sunset: 18:00 -03
- details ▼
- Sunday
- 25. Oct 2026
- 35°C
- 24°C
Partly Cloudy
- Precip. probability: 12%
- Precipitation: 0mm
- Wind: 20km/hNE 46°
- Humidity: 61%
- UV index: 11
- Sunrise: 05:51 -03
- Sunset: 18:00 -03
- details ▼
- Monday
- 26. Oct 2026
- 36°C
- 24°C
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0mm
- Wind: 18km/hNE 39°
- Humidity: 58%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
- Tuesday
- 27. Oct 2026
- 36°C
- 24°C
Partly Cloudy
- Precip. probability: 10%
- Precipitation: 0mm
- Wind: 16km/hNE 40°
- Humidity: 59%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
- Wednesday
- 28. Oct 2026
- 36°C
- 24°C
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0mm
- Wind: 16km/hNE 55°
- Humidity: 58%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
- Thursday
- 29. Oct 2026
- 35°C
- 24°C
Partly Cloudy
- Precip. probability: 17%
- Precipitation: 0mm
- Wind: 18km/hENE 57°
- Humidity: 61%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
- Friday
- 30. Oct 2026
- 35°C
- 24°C
Mostly Sunny
- Precip. probability: 23%
- Precipitation: 0mm
- Wind: 17km/hNE 51°
- Humidity: 60%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
- Saturday
- 31. Oct 2026
- 35°C
- 24°C
Partly Cloudy
- Precip. probability: 12%
- Precipitation: 0mm
- Wind: 16km/hNE 48°
- Humidity: 58%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
- Sunday
- 1. Nov 2026
- 35°C
- 24°C
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0mm
- Wind: 16km/hNE 48°
- Humidity: 58%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
Weather models show that primarily gloomy and occasionally sunny weather is predicted.
Rainfall is not anticipated in Castanhal in the upcoming period.
The high temperatures are expected to remain largely stable in the forecast period ahead. Maximum temperatures will fall between 35°C and 36°C, while the overnight low will stay at 24°C without change.
Monday through Wednesday, with the highest temperature of 36°C, will be the hottest days in Castanhal; on all other days, the maximum temperature remains steady at 35°C.
Including the humidity's impact, the maximum feel-like temperature may increase vastly and vary between a blistering 44°C and a blazing hot 51°C.
October and November, with an average high-temperature of 33.5°C, are the warmest months in Castanhal.
Rainfall is not anticipated in Castanhal in the upcoming period.
The high temperatures are expected to remain largely stable in the forecast period ahead. Maximum temperatures will fall between 35°C and 36°C, while the overnight low will stay at 24°C without change.
Monday through Wednesday, with the highest temperature of 36°C, will be the hottest days in Castanhal; on all other days, the maximum temperature remains steady at 35°C.
Including the humidity's impact, the maximum feel-like temperature may increase vastly and vary between a blistering 44°C and a blazing hot 51°C.
October and November, with an average high-temperature of 33.5°C, are the warmest months in Castanhal.
Updated: Oct 23, 2026 @ 06:44:15 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
In Castanhal, predominantly cloud-filled and occasionally dry and sunny weather is predicted for the next ten days.
The maximum temperature will vary between 35°C and 36°C, while the minimum temperature will be a persistent 24°C.
Taking the humidity into consideration, the maximum feel-like temperature will vary between 44°C and 51°C.
Taking the humidity into consideration, the maximum feel-like temperature will vary between 44°C and 51°C.
The hottest days will be Monday through Wednesday, with a maximum of 36°C. All other days, the maximum temperature will be the same 35°C.
On Saturday, in Castanhal, high-altitude clouds may scatter across the sky, but the sun will still shine.
Tomorrow, the maximum temperature will be 35°C, while the minimum temperature will be 24°C. The maximum heat index, which factors the actual air temperature with the relative humidity, is estimated at 46°C.
The maximum temperature will be in line with the average highest temperature of 33.5°C in October. Tomorrow, the lowest temperature will be also in line with the average low temperature.
The maximum temperature will be in line with the average highest temperature of 33.5°C in October. Tomorrow, the lowest temperature will be also in line with the average low temperature.
On Saturday, in Castanhal, sunrise will be at 05:51 and sunset at 18:00 (-03).
In Castanhal, tomorrow, there will be 12h and 9min of daylight.
On Sunday, in Castanhal, changing cloud patterns will allow for periods of sunshine.
On Sunday, the maximum temperature will be 35°C, while the minimum temperature will be 24°C.
