Weather forecast for tomorrowCastanhal, Brazil
Weather forecast for tomorrow
Saturday 31. Oct 2026
- 37°C
- 24°C
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0mm
- Wind: 17km/hNE 51°
- Humidity: 57%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
On Saturday, in Castanhal, mainly sunny conditions will dominate the day.
The temperature will fluctuate from a high of a torrid 37°C to a low of a temperate 24°C.
The maximum heat index, which represents the influence of relative humidity on air temperature, is calculated to be a dangerously hot 50°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The expected high will be relatively higher than October's standard temperature of 33.5°C.
Sunrise will be at 05:50 and sunset at 18:00; tomorrow's daylight will last for 12h and 10min.
The temperature will fluctuate from a high of a torrid 37°C to a low of a temperate 24°C.
The maximum heat index, which represents the influence of relative humidity on air temperature, is calculated to be a dangerously hot 50°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The expected high will be relatively higher than October's standard temperature 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 period: 12h - 15h 41°C.
Coldest hour: 6h 26°C.
Coldest hour: 6h 26°C.
Chance of precipitation
Highest chance: 6h 9%.
Hourly weather forecast
- 0h
- 25°C
- Feels like:28°C
Clear
- Precip. probability: 7%
- Precipitation: 0mm
- Wind: 9km/hENE 58°
- Humidity: 87%
- Pressure: 1010mbar
- Visibility: 16km
- UV index: 0
- details ▼
- 2h
- 24°C
- Feels like:27°C
Clear
- Precip. probability: 8%
- Precipitation: 0mm
- Wind: 5km/hENE 70°
- Humidity: 94%
- Pressure: 1009mbar
- Visibility: 16km
- UV index: 0
- details ▼
- 4h
- 24°C
- Feels like:27°C
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0mm
- Wind: 5km/hENE 76°
- Humidity: 92%
- Pressure: 1009mbar
- Visibility: 12km
- UV index: 0
- details ▼
Sunrise: 05:50
- 6h
- 24°C
- Feels like:26°C
Mostly Sunny
- Precip. probability: 9%
- Precipitation: 0mm
- Wind: 5km/hE 85°
- Humidity: 94%
- Pressure: 1010mbar
- Visibility: 12km
- UV index: 0
- details ▼
- 8h
- 28°C
- Feels like:33°C
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0mm
- Wind: 14km/hENE 70°
- Humidity: 76%
- Pressure: 1012mbar
- Visibility: 16km
- UV index: 3
- details ▼
- 10h
- 33°C
- Feels like:38°C
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0mm
- Wind: 17km/hENE 68°
- Humidity: 58%
- Pressure: 1012mbar
- Visibility: 16km
- UV index: 11
- details ▼
- 12h
- 35°C
- Feels like:41°C
Mostly Sunny
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 13km/hENE 59°
- Humidity: 51%
- Pressure: 1010mbar
- Visibility: 16km
- UV index: 11
- details ▼
- 14h
- 36°C
- Feels like:42°C
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 13km/hNE 40°
- Humidity: 46%
- Pressure: 1008mbar
- Visibility: 16km
- UV index: 11
- details ▼
- 16h
- 35°C
- Feels like:39°C
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0mm
- Wind: 12km/hNNE 25°
- Humidity: 46%
- Pressure: 1007mbar
- Visibility: 16km
- UV index: 3
- details ▼
- 18h
- 32°C
- Feels like:36°C
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0mm
- Wind: 14km/hNNE 29°
- Humidity: 56%
- Pressure: 1008mbar
- Visibility: 16km
- UV index: 0
- details ▼
Sunset: 18:00
- 20h
- 29°C
- Feels like:33°C
Clear
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 14km/hNE 38°
- Humidity: 68%
- Pressure: 1009mbar
- Visibility: 16km
- UV index: 0
- details ▼
- 22h
- 27°C
- Feels like:30°C
Clear
- Precip. probability: 5%
- Precipitation: 0mm
- Wind: 13km/hNE 45°
- Humidity: 78%
- Pressure: 1010mbar
- Visibility: 16km
- UV index: 0
- details ▼
Tomorrow, on Saturday, a combination of bright and dull weather is expected.
The temperature will be between the lowest temperature of 24°C and the highest temperature of 36°C. The feels-like temperature will vary between the lowest temperature of 26°C and the highest temperature of 42°C. The hottest part of the day will be from 13h to 15h.
Tomorrow, the maximum will be moderately higher than the average high for October. The lowest temperature tomorrow will be also in line with October's average minimum.
October and November, with an average high-temperature of 33.5°C, are the warmest months in Castanhal.
The temperature will be between the lowest temperature of 24°C and the highest temperature of 36°C. The feels-like temperature will vary between the lowest temperature of 26°C and the highest temperature of 42°C. The hottest part of the day will be from 13h to 15h.
Tomorrow, the maximum will be moderately higher than the average high for October. The lowest temperature tomorrow will be also in line with October's average minimum.
October and November, with an average high-temperature of 33.5°C, are the warmest months in Castanhal.
Updated: Oct 30, 2026 @ 03:00:52 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
Tomorrow, mostly clear skies and sunshine will create ideal daytime conditions.
Tomorrow, the highest temperature will be 37°C, while the lowest temperature will be 24°C. The maximum heat index, which factors the actual air temperature with the relative humidity, is estimated at 50°C.
Tomorrow, the maximum temperature will be slightly warmer than the average highest temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.
Tomorrow, the maximum temperature will be slightly warmer than the average highest temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.
On Saturday, in Castanhal, sunrise will be at 05:50 and sunset at 18:00 (-03).
In Castanhal, tomorrow, there will be 12h and 10min of daylight.
