Weather forecast for tomorrowCastanhal, Brazil

Weather forecast for tomorrow

Friday 30. Oct 2026

  • 36°C
  • 23°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0mm
  • Wind: 19km/hNE 55°
  • Humidity: 58%
  • UV index: 11
  • Sunrise: 05:50 -03
  • Sunset: 18:00 -03
  • ▼
Tomorrow, in Castanhal, occasional clouds will pass by, but expect bright spells.
The forecasted temperature range extends from a high of a torrid 36°C to a low of a temperate 23°C.
The maximum heat index, which adjusts the air temperature based on humidity, is calculated to be a dangerously hot 47°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. 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 temperature is anticipated to be a couple of degrees higher than the standard 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 40°C.
Coldest hour: 3h 25°C.

Chance of precipitation

Highest chance: 12h 17%.

Hourly weather forecast

  • 0h
  • 26°C
  • Feels like:
    26°C
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 9km/hNE 56°
  • Humidity: 87%
  • Pressure: 1011mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 2h
  • 25°C
  • Feels like:
    25°C
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 8km/hENE 62°
  • Humidity: 91%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 4h
  • 25°C
  • Feels like:
    25°C
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 7km/hENE 60°
  • Humidity: 91%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Sunrise: 05:50
  • 6h
  • 25°C
  • Feels like:
    27°C
Sunny
Sunny
  • Precip. probability: 8%
  • Precipitation: 0mm
  • Wind: 6km/hENE 73°
  • Humidity: 92%
  • Pressure: 1010mbar
  • Visibility: 14km
  • UV index: 0
  • ▼
  • 8h
  • 28°C
  • Feels like:
    33°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0mm
  • Wind: 15km/hENE 65°
  • Humidity: 75%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 3
  • ▼
  • 10h
  • 32°C
  • Feels like:
    38°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 19km/hENE 70°
  • Humidity: 59%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 11
  • ▼
  • 12h
  • 34°C
  • Feels like:
    40°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0mm
  • Wind: 15km/hENE 67°
  • Humidity: 53%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 11
  • ▼
  • 14h
  • 35°C
  • Feels like:
    41°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0mm
  • Wind: 16km/hNE 41°
  • Humidity: 48%
  • Pressure: 1008mbar
  • Visibility: 16km
  • UV index: 11
  • ▼
  • 16h
  • 34°C
  • Feels like:
    39°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0mm
  • Wind: 16km/hNE 41°
  • Humidity: 48%
  • Pressure: 1007mbar
  • Visibility: 16km
  • UV index: 3
  • ▼
  • 18h
  • 31°C
  • Feels like:
    36°C
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0mm
  • Wind: 17km/hNE 41°
  • Humidity: 57%
  • Pressure: 1008mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Sunset: 18:00
  • 20h
  • 29°C
  • Feels like:
    32°C
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 15km/hNE 47°
  • Humidity: 68%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 22h
  • 26°C
  • Feels like:
    29°C
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0mm
  • Wind: 14km/hNE 54°
  • Humidity: 78%
  • Pressure: 1011mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Tomorrow, on Friday, a combination of cloudy and sun-filled weather is expected.
The temperature will be between the lowest temperature of 25°C and the highest temperature of 35°C. The feels-like temperature will vary between a minimum of 25°C and a maximum of 41°C. The hottest part of the day will be from 13h to 15h.
The highest temperature will be relatively higher than October's average maximum of 33.5°C. The night temperature will be also consistent with the standard 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 @ 00:42:34 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, occasional clouds will pass by, but expect bright spells.

Tomorrow, the maximum temperature will be 36°C, while the minimum temperature will be 23°C. The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is appraised at 47°C.
The highest temperature will be moderately higher than the average maximum of 33.5°C in October. The lowest temperature will be in line with the average low of 22.4°C.

On Friday, 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.