Weather forecast for todayPorteirinha, Brazil

Weather forecast for today

Current condition 10:47 -03

  • 31°C
  • Feels like:
    33°C
Fair
Fair
  • Precipitation: 0mm
  • Wind: 8km/hNNW 340°
  • Humidity: 51%
  • Dewpoint: 19°C
  • Pressure: 1011.18mbar
  • Visibility: 16.09km
  • UV index: 11
  • ▼
In Porteirinha, at the moment, sunshine dominates, keeping the weather fair and inviting.
The temperature is a tropical 31°C, the felt air temperature is slightly different, evaluated at a humid 33°C. The current temperature is only a few degrees off the highest temperature of the day.

Sunday 18. Oct 2026

  • 34°C
  • 22°C
PM Thunderstorms
PM Thunderstorms
  • Precip. probability: 62%
  • Precipitation: 4mm
  • Wind: 12km/hW 264°
  • Humidity: 48%
  • UV index: 11
  • Sunrise: 05:22 -03
  • Sunset: 17:51 -03
  • ▼
Today, isolated thunderstorms are expected with brief heavy rain.
The likelihood of precipitation is high. However, the rain will be light. Forecasted temperatures will peak at a tropical 34°C and dip to a minimum of a delightful 22°C.
The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is assessed at a very hot 38°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 day’s top temperature is expected to be relatively higher than the typical October high of 31.1°C.
Sunrise was at 05:22 and sunset will be at 17:51; the daylight will last for 12h and 29min.

Hourly overview

Hourly temperatures

Warmest period: 13h - 15h 36°C.
Coldest hour: 1h 25°C.

Chance of precipitation

Highest chance: 23h 63%.

Hourly weather forecast

  • 11h
  • 31°C
  • Feels like:
    34°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 9km/hNNW 340°
  • Humidity: 50%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 11
  • ▼
  • 12h
  • 32°C
  • Feels like:
    35°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Wind: 10km/hWNW 301°
  • Humidity: 46%
  • Pressure: 1009mbar
  • Visibility: 16km
  • UV index: 11
  • ▼
  • 13h
  • 33°C
  • Feels like:
    36°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0mm
  • Wind: 11km/hWNW 281°
  • Humidity: 44%
  • Pressure: 1008mbar
  • Visibility: 16km
  • UV index: 11
  • ▼
  • 14h
  • 34°C
  • Feels like:
    36°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0mm
  • Wind: 12km/hW 264°
  • Humidity: 41%
  • Pressure: 1007mbar
  • Visibility: 16km
  • UV index: 9
  • ▼
  • 15h
  • 34°C
  • Feels like:
    36°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 12%
  • Precipitation: 0mm
  • Wind: 11km/hWSW 258°
  • Humidity: 41%
  • Pressure: 1006mbar
  • Visibility: 16km
  • UV index: 5
  • ▼
  • 16h
  • 28°C
  • Feels like:
    29°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 57%
  • Precipitation: 1mm
  • Wind: 12km/hWSW 249°
  • Humidity: 42%
  • Pressure: 1006mbar
  • Visibility: 16km
  • UV index: 2
  • ▼
  • 17h
  • 28°C
  • Feels like:
    30°C
Thunderstorms
Thunderstorms
  • Precip. probability: 62%
  • Precipitation: 1mm
  • Wind: 8km/hSW 232°
  • Humidity: 56%
  • Pressure: 1006mbar
  • Visibility: 10km
  • UV index: 0
  • ▼
Sunset: 17:51
  • 18h
  • 30°C
  • Feels like:
    33°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0mm
  • Wind: 8km/hS 170°
  • Humidity: 53%
  • Pressure: 1008mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 19h
  • 28°C
  • Feels like:
    31°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 41%
  • Precipitation: 1mm
  • Wind: 8km/hSSE 147°
  • Humidity: 62%
  • Pressure: 1009mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 20h
  • 27°C
  • Feels like:
    29°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 49%
  • Precipitation: 1mm
  • Wind: 8km/hE 95°
  • Humidity: 68%
  • Pressure: 1010mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 21h
  • 26°C
  • Feels like:
    28°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 54%
  • Precipitation: 1mm
  • Wind: 7km/hESE 104°
  • Humidity: 73%
  • Pressure: 1011mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 22h
  • 25°C
  • Feels like:
    27°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 37%
  • Precipitation: 1mm
  • Wind: 8km/hENE 58°
  • Humidity: 77%
  • Pressure: 1012mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 23h
  • 24°C
  • Feels like:
    27°C
Thunderstorms
Thunderstorms
  • Precip. probability: 63%
  • Precipitation: 1mm
  • Wind: 6km/hNW 311°
  • Humidity: 84%
  • Pressure: 1012mbar
  • Visibility: 10km
  • UV index: 0
  • ▼
Today, in Porteirinha, a combination of lightning-active, cloud-filled and sunny weather is predicted.
With minimal precipitation of 1mm, rain is predicted at 16h, 17h, and from 19h to 23h.
The temperature will be between a minimum of 24°C and a maximum of 34°C. The hottest part of the day will be at 14h and 15h.
The forecasted high will be a couple of degrees higher than the typical October maximum of 31.1°C. Today, the temperature is expected to be also a couple of degrees higher than October's normal minimum of 19°C.
October leads as the warmest month in Porteirinha, with high temperatures averaging 31.1°C and lows at 19°C.
Updated: Oct 18, 2026 @ 13:47:58 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (10:47 -03) is 31°C.

Today, isolated thunderstorms are expected with brief heavy rain.

Light precipitation of 4mm is predicted. The chance of rainfall is 62%.

Today, the highest temperature in Porteirinha will be 34°C, while the lowest temperature will be 22°C. The maximum heat index, which adjusts the air temperature based on humidity, is estimated at 38°C.
The highest temperature will be relatively higher than the average maximum of 31.1°C in October. Today, the lowest temperature will be also a couple of degrees higher than the average low temperature.

On Sunday, in Porteirinha, sunrise was at 05:22 and sunset will be at 17:51 (-03).

Today, the daylight will last for 12h and 29min.