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, a bright and mostly cloud-free sky is in store.
Temperatures are expected to range from a maximum of a fiery hot 37°C to a minimum of a temperate 24°C.
The maximum heat index, which combines relative humidity and air temperature, is computed to be a searing 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 maximum temperature is forecasted to be slightly warmer than the common October peak 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 expected to range from a maximum of a fiery hot 37°C to a minimum of a temperate 24°C.
The maximum heat index, which combines relative humidity and air temperature, is computed to be a searing 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 maximum temperature is forecasted to be slightly warmer than the common October peak 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: 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:27°C
Partly Cloudy
- Precip. probability: 8%
- 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 dull and mostly clear weather is forecasted.
The temperature will be between a minimum of 24°C and a maximum of 36°C. The feels-like temperature will vary between a minimum of 25°C and a maximum of 42°C. The hottest part of the day will be at 14h and 15h.
The highest temperature will be a couple of degrees higher than October's average maximum of 33.5°C. Tomorrow, the temperature will drop to a level also close to October's average minimum of 22.4°C.
The warmest months in Castanhal are October and November, with an average high-temperature of 33.5°C.
The temperature will be between a minimum of 24°C and a maximum of 36°C. The feels-like temperature will vary between a minimum of 25°C and a maximum of 42°C. The hottest part of the day will be at 14h and 15h.
The highest temperature will be a couple of degrees higher than October's average maximum of 33.5°C. Tomorrow, the temperature will drop to a level also close to October's average minimum of 22.4°C.
The warmest months in Castanhal are October and November, with an average high-temperature of 33.5°C.
Updated: Oct 30, 2026 @ 21:23:35 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, predominantly sunny weather will make for pleasant outdoor conditions.
Tomorrow, the maximum temperature will be 37°C, while the minimum temperature will be 24°C. The maximum heat index, which adjusts the air temperature based on humidity, is assessed at 50°C.
The maximum temperature will be a few degrees higher than the average highest temperature of 33.5°C in October. Tomorrow, the lowest temperature will be in line with the average low temperature.
The maximum temperature will be a few degrees higher than the average highest temperature of 33.5°C in October. Tomorrow, the lowest temperature 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).
Tomorrow, the daylight will last for 12h and 10min.
