Weather forecast for tomorrowCastanhal, Brazil

Weather forecast for tomorrow

Sunday 1. Nov 2026

  • 35°C
  • 24°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 18km/hNE 51°
  • Humidity: 59%
  • UV index: 11
  • Sunrise: 05:50 -03
  • Sunset: 18:00 -03
  • ▼
Tomorrow, on Sunday, sunlight and clouds will take turns dominating the sky.
The temperature is predicted to vary between a maximum of a fiery hot 35°C and a minimum of a warm 24°C.
The maximum heat index, which combines air temperature and relative humidity, is estimated at a blazing hot 45°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Tomorrow's maximum temperature is expected to reflect the standard October high of 33.5°C.
Sunrise will be at 05:50 and sunset at 18:00; tomorrow's daylight will last for 12h and 10min.

Hourly overview

Hourly temperatures

Warmest hour: 15h 41°C.
Coldest period: 3h - 6h 27°C.

Chance of precipitation

Highest chance: 3h - 6h 8%.

Hourly weather forecast

  • 0h
  • 25°C
  • Feels like:
    28°C
Clear
Clear
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 10km/hNE 42°
  • Humidity: 86%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 2h
  • 25°C
  • Feels like:
    27°C
Clear
Clear
  • Precip. probability: 8%
  • Precipitation: 0mm
  • Wind: 6km/hNE 43°
  • Humidity: 91%
  • Pressure: 1009mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 4h
  • 24°C
  • Feels like:
    27°C
Clear
Clear
  • Precip. probability: 8%
  • Precipitation: 0mm
  • Wind: 5km/hNE 43°
  • Humidity: 92%
  • Pressure: 1009mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Sunrise: 05:50
  • 6h
  • 24°C
  • Feels like:
    27°C
Sunny
Sunny
  • Precip. probability: 8%
  • Precipitation: 0mm
  • Wind: 5km/hENE 56°
  • Humidity: 92%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 8h
  • 28°C
  • Feels like:
    33°C
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 14km/hENE 61°
  • Humidity: 74%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 3
  • ▼
  • 10h
  • 32°C
  • Feels like:
    38°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 18km/hENE 65°
  • Humidity: 59%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 11
  • ▼
  • 12h
  • 34°C
  • Feels like:
    40°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 15km/hENE 61°
  • Humidity: 53%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 11
  • ▼
  • 14h
  • 35°C
  • Feels like:
    41°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0mm
  • Wind: 15km/hNE 39°
  • Humidity: 52%
  • Pressure: 1008mbar
  • Visibility: 16km
  • UV index: 9
  • ▼
  • 16h
  • 34°C
  • Feels like:
    39°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 15km/hNE 37°
  • Humidity: 53%
  • Pressure: 1007mbar
  • Visibility: 16km
  • UV index: 2
  • ▼
  • 18h
  • 32°C
  • Feels like:
    36°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0mm
  • Wind: 15km/hNE 39°
  • Humidity: 59%
  • Pressure: 1008mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Sunset: 18:00
  • 20h
  • 29°C
  • Feels like:
    33°C
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 16km/hNE 47°
  • Humidity: 68%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 22h
  • 27°C
  • Feels like:
    30°C
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 15km/hNE 51°
  • Humidity: 77%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of dull and sunny weather is forecasted.
The temperature will vary between a minimum of 24°C and a maximum of 35°C. The feels-like temperature will vary between a minimum of 27°C and a maximum of 41°C. The hottest part of the day will be from 13h to 15h.
The highest temperature will be similar to October's average maximum of 33.5°C. The expected low will be also close to the average minimum in October, which is 22.4°C.
October and November, with an average high-temperature of 33.5°C, are the warmest months in Castanhal.
Updated: Oct 31, 2026 @ 07:01:50 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, a pleasant mix of sun and clouds will define the day.

Tomorrow, the maximum temperature will be 35°C, while the minimum temperature will be 24°C. The maximum heat index, which modifies the air temperature to account for humidity, is appraised at 45°C.
The maximum temperature will be in line with the average highest temperature of 33.5°C in October. The lowest temperature tomorrow will be also in line with the average low temperature.

On Sunday, in Castanhal, sunrise will be at 05:50 and sunset at 18:00 (-03).

In Castanhal, the length of the day tomorrow will be 12h and 10min.