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 50°
- Humidity: 57%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
Tomorrow, on Saturday, 31st of October, a glowing sky and minimal clouds are expected.
A temperature range of a fiery hot 37°C to a warm 24°C is anticipated.
The maximum heat index, which adjusts the air temperature based on humidity, is calculated to be a life-threatening 50°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.
The maximum temperature for tomorrow will be slightly warmer than the regular high of 33.5°C in October.
Sunrise will be at 05:50 and sunset at 18:00; tomorrow's daylight will last for 12h and 10min.
A temperature range of a fiery hot 37°C to a warm 24°C is anticipated.
The maximum heat index, which adjusts the air temperature based on humidity, is calculated to be a life-threatening 50°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.
The maximum temperature for tomorrow will be slightly warmer than the regular high of 33.5°C in October.
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: 0h 25°C.
Coldest hour: 0h 25°C.
Chance of precipitation
Highest chance: 6h 9%.
Hourly weather forecast
- 0h
- 25°C
- Feels like:25°C
Clear
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 9km/hENE 59°
- Humidity: 89%
- Pressure: 1010mbar
- Visibility: 16km
- UV index: 0
- details ▼
- 2h
- 24°C
- Feels like:24°C
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0mm
- Wind: 6km/hENE 67°
- Humidity: 94%
- Pressure: 1010mbar
- Visibility: 15km
- UV index: 0
- details ▼
- 4h
- 24°C
- Feels like:27°C
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0mm
- Wind: 5km/hENE 69°
- Humidity: 93%
- Pressure: 1010mbar
- Visibility: 11km
- UV index: 0
- details ▼
Sunrise: 05:50
- 6h
- 24°C
- Feels like:26°C
Mostly Sunny
- Precip. probability: 9%
- Precipitation: 0mm
- Wind: 5km/hENE 76°
- Humidity: 95%
- Pressure: 1010mbar
- Visibility: 8km
- UV index: 0
- details ▼
- 8h
- 28°C
- Feels like:32°C
Sunny
- Precip. probability: 4%
- Precipitation: 0mm
- Wind: 14km/hENE 65°
- Humidity: 76%
- Pressure: 1012mbar
- Visibility: 16km
- UV index: 3
- details ▼
- 10h
- 32°C
- Feels like:38°C
Sunny
- Precip. probability: 0%
- Precipitation: 0mm
- Wind: 17km/hENE 67°
- Humidity: 58%
- Pressure: 1012mbar
- Visibility: 16km
- UV index: 11
- details ▼
- 12h
- 35°C
- Feels like:41°C
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0mm
- Wind: 14km/hENE 64°
- Humidity: 50%
- Pressure: 1010mbar
- Visibility: 16km
- UV index: 11
- details ▼
- 14h
- 36°C
- Feels like:41°C
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0mm
- Wind: 14km/hNE 36°
- Humidity: 46%
- Pressure: 1008mbar
- Visibility: 16km
- UV index: 11
- details ▼
- 16h
- 34°C
- Feels like:39°C
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 13km/hNNE 28°
- Humidity: 47%
- Pressure: 1007mbar
- Visibility: 16km
- UV index: 3
- details ▼
- 18h
- 32°C
- Feels like:36°C
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0mm
- Wind: 14km/hNNE 27°
- Humidity: 57%
- Pressure: 1008mbar
- Visibility: 16km
- UV index: 0
- details ▼
Sunset: 18:00
- 20h
- 29°C
- Feels like:32°C
Clear
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 14km/hNE 36°
- 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 42°
- Humidity: 79%
- Pressure: 1010mbar
- Visibility: 16km
- UV index: 0
- details ▼
Tomorrow, a combination of cloud-filled and clear weather is predicted.
The temperature will vary between a minimum of 24°C and a maximum of 36°C. The feels-like temperature will vary between the lowest temperature of 24°C and the highest temperature of 42°C. The hottest part of the day will be at 14h and 15h.
The highest temperature tomorrow will be relatively higher than October's typical maximum temperature. Tomorrow, the night is expected to be also resembling the typical October low of 22.4°C.
October and November, with an average high-temperature of 33.5°C, are the warmest months in Castanhal.
The temperature will vary between a minimum of 24°C and a maximum of 36°C. The feels-like temperature will vary between the lowest temperature of 24°C and the highest temperature of 42°C. The hottest part of the day will be at 14h and 15h.
The highest temperature tomorrow will be relatively higher than October's typical maximum temperature. Tomorrow, the night is expected to be also resembling the typical October low of 22.4°C.
October and November, with an average high-temperature of 33.5°C, are the warmest months in Castanhal.
Updated: Oct 30, 2026 @ 22:22:55 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, sunny intervals will be long-lasting, with few disruptions.
Tomorrow, the maximum temperature will be 37°C, while the minimum temperature will be 24°C. The maximum heat index, which modifies the air temperature to account for humidity, is evaluated at 50°C.
The highest temperature tomorrow will be slightly warmer than the average maximum temperature in October. The lowest temperature tomorrow will be in line with the average low temperature.
The highest temperature tomorrow will be slightly warmer than the average maximum 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, Brazil, the length of the day tomorrow will be 12h and 10min.
