Weather forecast for tomorrowCastanhal, Brazil
Weather forecast for tomorrow
Saturday 31. Oct 2026
- 37°C
- 24°C
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0mm
- Wind: 17km/hNE 48°
- Humidity: 57%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
On Saturday, in Castanhal, sunshine will prevail for most of the day.
Temperatures are predicted to peak at a sizzling 37°C and drop to a minimum of a moderately hot 24°C.
The maximum heat index, which modifies the air temperature to account for humidity, is assessed at a blazing hot 50°C. Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Tomorrow's high is expected to be moderately higher than the average high in October of 33.5°C.
Sunrise will be at 05:50 and sunset at 18:00; tomorrow's daylight will last for 12h and 10min.
Temperatures are predicted to peak at a sizzling 37°C and drop to a minimum of a moderately hot 24°C.
The maximum heat index, which modifies the air temperature to account for humidity, is assessed at a blazing hot 50°C. Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Tomorrow's high is expected to be moderately higher than the average high in October 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: 3h 24°C.
Coldest hour: 3h 24°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 60°
- Humidity: 89%
- Pressure: 1010mbar
- Visibility: 16km
- UV index: 0
- details ▼
- 2h
- 24°C
- Feels like:24°C
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 6km/hENE 68°
- Humidity: 94%
- Pressure: 1010mbar
- Visibility: 14km
- UV index: 0
- details ▼
- 4h
- 24°C
- Feels like:24°C
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 5km/hENE 67°
- Humidity: 93%
- Pressure: 1010mbar
- Visibility: 8km
- UV index: 0
- details ▼
Sunrise: 05:50
- 6h
- 24°C
- Feels like:26°C
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0mm
- Wind: 5km/hE 81°
- Humidity: 95%
- Pressure: 1010mbar
- Visibility: 4km
- UV index: 0
- details ▼
- 8h
- 28°C
- Feels like:32°C
Sunny
- Precip. probability: 4%
- Precipitation: 0mm
- Wind: 13km/hENE 65°
- Humidity: 77%
- 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: 59%
- Pressure: 1012mbar
- Visibility: 16km
- UV index: 11
- details ▼
- 12h
- 35°C
- Feels like:41°C
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0mm
- Wind: 13km/hENE 66°
- 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/hNNE 34°
- Humidity: 46%
- Pressure: 1008mbar
- Visibility: 16km
- UV index: 11
- details ▼
- 16h
- 35°C
- Feels like:40°C
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0mm
- Wind: 13km/hNNE 21°
- Humidity: 47%
- Pressure: 1007mbar
- Visibility: 16km
- UV index: 3
- details ▼
- 18h
- 32°C
- Feels like:36°C
Sunny
- Precip. probability: 0%
- Precipitation: 0mm
- Wind: 13km/hNNE 26°
- 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 35°
- Humidity: 68%
- Pressure: 1010mbar
- 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, on Saturday, a combination of cloud-filled and bright weather is anticipated.
The temperature will be between a minimum of 24°C and a maximum of 36°C. The feels-like temperature will be between a minimum of 24°C and a maximum of 41°C. The hottest part of the day is expected around 14h.
Tomorrow, the maximum will be a few degrees higher than the average high for October. The temperature low is forecasted to be also alike with the usual October value 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 be between a minimum of 24°C and a maximum of 36°C. The feels-like temperature will be between a minimum of 24°C and a maximum of 41°C. The hottest part of the day is expected around 14h.
Tomorrow, the maximum will be a few degrees higher than the average high for October. The temperature low is forecasted to be also alike with the usual October value of 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 @ 01:05:01 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
On Saturday, sunshine will take center stage, with just faint traces of clouds.
Tomorrow, the highest temperature will be 37°C, while the lowest temperature will be 24°C. The maximum heat index, which combines air temperature and relative humidity, is estimated at 50°C.
Tomorrow, the highest temperature will be a few degrees higher than the average maximum temperature in October. The lowest temperature will be in line with the average low of 22.4°C.
Tomorrow, the highest temperature will be a few degrees higher than the average maximum temperature in October. The lowest temperature will be in line with the average low of 22.4°C.
On Saturday, 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.
