Weather forecast for tomorrowCastanhal, Brazil
Weather forecast for tomorrow
Saturday 31. Oct 2026
- 36°C
- 24°C
Mostly Sunny
- Precip. probability: 20%
- Precipitation: 0mm
- Wind: 18km/hNE 50°
- Humidity: 57%
- UV index: 11
- Sunrise: 05:50 -03
- Sunset: 18:00 -03
- details ▼
On Saturday, in Castanhal, expect brilliant sunshine under mostly clear skies.
The highest temperature will be a torrid 36°C, while the lowest temperature will be a temperate 24°C.
The maximum heat index, which adjusts the air temperature based on humidity, is assessed at a searing 47°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.
The expected maximum temperature will be slightly warmer than October's typical 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.
The highest temperature will be a torrid 36°C, while the lowest temperature will be a temperate 24°C.
The maximum heat index, which adjusts the air temperature based on humidity, is assessed at a searing 47°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.
The expected maximum temperature will be slightly warmer than October's typical 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 period: 12h - 15h 40°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: 10km/hENE 59°
- Humidity: 87%
- Pressure: 1010mbar
- Visibility: 16km
- UV index: 0
- details ▼
- 2h
- 24°C
- Feels like:27°C
Mostly Clear
- 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
Clear
- Precip. probability: 9%
- Precipitation: 0mm
- Wind: 5km/hENE 71°
- Humidity: 93%
- Pressure: 1010mbar
- Visibility: 11km
- UV index: 0
- details ▼
Sunrise: 05:50
- 6h
- 24°C
- Feels like:26°C
Sunny
- Precip. probability: 9%
- Precipitation: 0mm
- Wind: 5km/hE 81°
- 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 68°
- 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
- 34°C
- Feels like:40°C
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0mm
- Wind: 14km/hENE 60°
- Humidity: 51%
- Pressure: 1010mbar
- Visibility: 16km
- UV index: 11
- details ▼
- 14h
- 35°C
- Feels like:41°C
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0mm
- Wind: 14km/hNE 40°
- Humidity: 46%
- Pressure: 1008mbar
- Visibility: 16km
- UV index: 11
- details ▼
- 16h
- 34°C
- Feels like:39°C
Partly Cloudy
- Precip. probability: 21%
- Precipitation: 0mm
- Wind: 13km/hNNE 25°
- Humidity: 47%
- Pressure: 1007mbar
- Visibility: 16km
- UV index: 3
- details ▼
- 18h
- 32°C
- Feels like:36°C
Partly Cloudy
- 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: 15km/hNE 39°
- 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 dry and sunny and overcast weather is predicted.
The temperature will be between a minimum of 24°C and a maximum of 35°C. The feels-like temperature will vary between the lowest temperature of 26°C and the highest temperature of 41°C. The hottest part of the day will be from 13h to 15h.
Tomorrow, expect temperatures a couple of degrees higher than what is usual for October. The lowest temperature is also alike with October's typical 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 35°C. The feels-like temperature will vary between the lowest temperature of 26°C and the highest temperature of 41°C. The hottest part of the day will be from 13h to 15h.
Tomorrow, expect temperatures a couple of degrees higher than what is usual for October. The lowest temperature is also alike with October's typical 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 @ 18:23:54 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, in Castanhal, mainly sunny skies with just a few high clouds are anticipated.
Tomorrow, the highest temperature will be 36°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 47°C.
The maximum temperature will be a couple of 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 couple of 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).
In Castanhal, the length of the day tomorrow will be 12h and 10min.
