Weather forecast for 10 daysCastanhal, Brazil
Weather forecast for the weekend
Saturday 24. Oct 2026
- 34°C
- 24°C
PM Showers
- Precip. probability: 34%
- Precipitation: 1mm
- Wind: 20km/hNE 50°
- Humidity: 65%
- UV index: 11
- Sunrise: 05:51 -03
- Sunset: 18:00 -03
- details ▼
Tomorrow, in Castanhal, light showers are expected to pass through in the afternoon.
Minimal precipitation is forecasted. The temperature is anticipated to oscillate between a maximum of a humid 34°C and a minimum of a warm 24°C.
The maximum heat index, which combines air temperature and relative humidity, is assessed at a scorching 44°C. Note that heat index values are valued for light wind and location in the shade. 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 usual high of 33.5°C is forecasted to be matched by the day’s maximum temperature.
Sunrise will be at 05:51 and sunset at 18:00; tomorrow's daylight will last for 12h and 9min.
Minimal precipitation is forecasted. The temperature is anticipated to oscillate between a maximum of a humid 34°C and a minimum of a warm 24°C.
The maximum heat index, which combines air temperature and relative humidity, is assessed at a scorching 44°C. Note that heat index values are valued for light wind and location in the shade. 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 usual high of 33.5°C is forecasted to be matched by the day’s maximum temperature.
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
PM Showers
- Precip. probability: 36%
- Precipitation: 1mm
- Wind: 20km/hNE 47°
- Humidity: 61%
- UV index: 11
- Sunrise: 05:51 -03
- Sunset: 18:00 -03
- details ▼
On Sunday, 25th of October, prepare for occasional showers in the afternoon.
Minimal precipitation is expected. The temperature is anticipated to oscillate between a maximum of a very hot 35°C and a minimum of a temperate 24°C.
On Sunday, expect the temperature to remain near October's average maximum of 33.5°C.
Sunrise will be at 05:51 and sunset at 18:00; the daylight will last for 12h and 9min.
Minimal precipitation is expected. The temperature is anticipated to oscillate between a maximum of a very hot 35°C and a minimum of a temperate 24°C.
On Sunday, expect the temperature to remain near October's average maximum 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
Maximum temperature: 36°C.
Coldest period: today - tomorrow 34°C.
Coldest period: today - tomorrow 34°C.
Chance of precipitation
Highest chance: Sunday 36%.
Long-term weather forecast
- Friday
- 23. Oct 2026
- 34°C
- 24°C
Partly Cloudy
- Precip. probability: 14%
- Precipitation: 0mm
- Wind: 16km/hNE 44°
- Humidity: 55%
- UV index: 11
- Sunrise: 05:51 -03
- Sunset: 18:00 -03
- details ▼
- Saturday
- 24. Oct 2026
- 34°C
- 24°C
PM Showers
- Precip. probability: 34%
- Precipitation: 1mm
- Wind: 20km/hNE 50°
- Humidity: 65%
- UV index: 11
- Sunrise: 05:51 -03
- Sunset: 18:00 -03
- details ▼
- Sunday
- 25. Oct 2026
- 35°C
- 24°C
PM Showers
- Precip. probability: 36%
- Precipitation: 1mm
- Wind: 20km/hNE 47°
- 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: 8%
- 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 39°
- Humidity: 58%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
- Wednesday
- 28. Oct 2026
- 36°C
- 24°C
Mostly Sunny
- Precip. probability: 10%
- Precipitation: 0mm
- Wind: 16km/hNE 51°
- Humidity: 59%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
- Thursday
- 29. Oct 2026
- 35°C
- 24°C
Mostly Sunny
- Precip. probability: 14%
- Precipitation: 0mm
- Wind: 17km/hENE 60°
- Humidity: 60%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
- Friday
- 30. Oct 2026
- 35°C
- 24°C
Mostly Sunny
- Precip. probability: 8%
- Precipitation: 0mm
- Wind: 17km/hNE 53°
- Humidity: 59%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
- Saturday
- 31. Oct 2026
- 36°C
- 24°C
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 16km/hNE 50°
- Humidity: 57%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
- Sunday
- 1. Nov 2026
- 36°C
- 24°C
Partly Cloudy
- Precip. probability: 13%
- Precipitation: 0mm
- Wind: 17km/hNE 50°
- Humidity: 57%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
Models point to a combination of gloomy, dry and sunny and showery weather is expected.
With minimal precipitation of 1mm, rainfall is forecasted for Saturday and Sunday.
Highs will stay within a very narrow margin throughout the coming week. Expected highs will hover between 34°C and 36°C, while the minimum remains unchanged, holding at 24°C.
With a maximum temperature of 36°C, Monday through Wednesday, next Saturday and Sunday will be the hottest days in Castanhal; with a maximum temperature of 34°C, Friday and Saturday will be the coldest days in Castanhal.
Including the humidity's impact, the maximum feel-like temperature may increase significantly and vary between a scorching 40°C and a blazing hot 48°C.
The warmest months in Castanhal are October and November, with an average high-temperature of 33.5°C.
With minimal precipitation of 1mm, rainfall is forecasted for Saturday and Sunday.
Highs will stay within a very narrow margin throughout the coming week. Expected highs will hover between 34°C and 36°C, while the minimum remains unchanged, holding at 24°C.
With a maximum temperature of 36°C, Monday through Wednesday, next Saturday and Sunday will be the hottest days in Castanhal; with a maximum temperature of 34°C, Friday and Saturday will be the coldest days in Castanhal.
Including the humidity's impact, the maximum feel-like temperature may increase significantly and vary between a scorching 40°C and a blazing hot 48°C.
The warmest months in Castanhal are October and November, with an average high-temperature of 33.5°C.
Updated: Oct 23, 2026 @ 15:06:37 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, a combination of overcast, clear and rainy weather is forecasted for the next ten days.
With minimal precipitation of 1mm, rainfall is predicted for Saturday and Sunday in Castanhal.
The maximum temperature will vary between 34°C and 36°C, while the minimum temperature will be a persistent 24°C.
Including the humidity's impact, the maximum feel-like temperature will vary between 40°C and 48°C.
Including the humidity's impact, the maximum feel-like temperature will vary between 40°C and 48°C.
The hottest days will be Monday through Wednesday, next Saturday and Sunday, with a maximum of 36°C. With a maximum temperature of 34°C, Friday and Saturday will be the coldest days.
On Saturday, a few rain showers may pass through in the afternoon.
Tomorrow, there is a low chance of minimal precipitation in Castanhal.
Tomorrow, the maximum temperature will be 34°C, while the minimum temperature will be 24°C. The maximum heat index, which modifies the air temperature to account for humidity, is calculated to be 44°C.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature will be also in line with the average low of 22.4°C.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature will be also in line with the average low of 22.4°C.
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, prepare for occasional showers in the afternoon.
On Sunday, there is a low probability of minimal rainfall in Castanhal.
On Sunday, the maximum temperature in Castanhal will be 35°C, while the minimum temperature will be 24°C.
