Weather forecast for tomorrowRianápolis, Brazil

Weather forecast for tomorrow

Wednesday 28. Oct 2026

  • 29°C
  • 22°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 48%
  • Precipitation: 9mm
  • Wind: 12km/hE 91°
  • Humidity: 76%
  • UV index: 7
  • Sunrise: 05:43 -03
  • Sunset: 18:20 -03
  • ▼
Tomorrow, on Wednesday, scattered thunderstorms are expected, bringing heavy rain and thunder at times.
The likelihood of rainfall is low, and light precipitation is forecasted. The temperature is predicted to vary between a maximum of a warm 29°C and a minimum of an agreeable 22°C.
The maximum heat index, which adjusts the air temperature based on humidity, is calculated to be a humid 34°C. Take into consideration that the heat index values are calculated for shade and light wind conditions.
The day’s top temperature is expected to be a few degrees lower than the typical October high of 31.5°C.
Sunrise will be at 05:43 and sunset at 18:20; tomorrow's daylight will last for 12h and 37min.

Hourly overview

Hourly temperatures

Warmest hour: 15h 31°C.
Coldest hour: 6h 24°C.

Chance of precipitation

Highest chance: 3h 77%.

Hourly weather forecast

  • 0h
  • 24°C
  • Feels like:
    27°C
Thunderstorms
Thunderstorms
  • Precip. probability: 71%
  • Precipitation: 2mm
  • Wind: 9km/hSE 137°
  • Humidity: 87%
  • Pressure: 1014mbar
  • Visibility: 6km
  • UV index: 0
  • ▼
  • 2h
  • 24°C
  • Feels like:
    25°C
Thunderstorms
Thunderstorms
  • Precip. probability: 74%
  • Precipitation: 2mm
  • Wind: 7km/hSE 145°
  • Humidity: 89%
  • Pressure: 1013mbar
  • Visibility: 9km
  • UV index: 0
  • ▼
  • 4h
  • 23°C
  • Feels like:
    24°C
Thunderstorms
Thunderstorms
  • Precip. probability: 73%
  • Precipitation: 2mm
  • Wind: 7km/hSSE 150°
  • Humidity: 91%
  • Pressure: 1014mbar
  • Visibility: 6km
  • UV index: 0
  • ▼
Sunrise: 05:43
  • 6h
  • 22°C
  • Feels like:
    24°C
Showers
Showers
  • Precip. probability: 53%
  • Precipitation: 1mm
  • Wind: 6km/hSE 139°
  • Humidity: 94%
  • Pressure: 1015mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 8h
  • 24°C
  • Feels like:
    26°C
Showers
Showers
  • Precip. probability: 39%
  • Precipitation: 1mm
  • Wind: 9km/hESE 103°
  • Humidity: 89%
  • Pressure: 1016mbar
  • Visibility: 11km
  • UV index: 1
  • ▼
  • 10h
  • 26°C
  • Feels like:
    28°C
Few Showers
Few Showers
  • Precip. probability: 31%
  • Precipitation: 1mm
  • Wind: 11km/hE 86°
  • Humidity: 79%
  • Pressure: 1017mbar
  • Visibility: 16km
  • UV index: 5
  • ▼
  • 12h
  • 27°C
  • Feels like:
    30°C
Isolated Thunderstorms
Isolated Thunderstorms
  • Precip. probability: 31%
  • Precipitation: 1mm
  • Wind: 11km/hENE 69°
  • Humidity: 72%
  • Pressure: 1015mbar
  • Visibility: 14km
  • UV index: 7
  • ▼
  • 14h
  • 28°C
  • Feels like:
    31°C
Cloudy
Cloudy
  • Precip. probability: 21%
  • Precipitation: 0mm
  • Wind: 9km/hENE 68°
  • Humidity: 69%
  • Pressure: 1013mbar
  • Visibility: 16km
  • UV index: 5
  • ▼
  • 16h
  • 28°C
  • Feels like:
    31°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 47%
  • Precipitation: 1mm
  • Wind: 9km/hE 101°
  • Humidity: 67%
  • Pressure: 1011mbar
  • Visibility: 11km
  • UV index: 1
  • ▼
  • 18h
  • 26°C
  • Feels like:
    29°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 40%
  • Precipitation: 1mm
  • Wind: 6km/hESE 113°
  • Humidity: 75%
  • Pressure: 1012mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
Sunset: 18:20
  • 20h
  • 25°C
  • Feels like:
    27°C
Cloudy
Cloudy
  • Precip. probability: 11%
  • Precipitation: 0mm
  • Wind: 6km/hESE 107°
  • Humidity: 84%
  • Pressure: 1013mbar
  • Visibility: 14km
  • UV index: 0
  • ▼
  • 22h
  • 24°C
  • Feels like:
    27°C
Cloudy
Cloudy
  • Precip. probability: 11%
  • Precipitation: 0mm
  • Wind: 5km/hESE 115°
  • Humidity: 88%
  • Pressure: 1014mbar
  • Visibility: 15km
  • UV index: 0
  • ▼
Tomorrow, a combination of cloudy, unstable and showery weather is anticipated.
Rainfall is predicted from midnight to 8h, and from 10h to 13h, and from 16h to 19h. With light precipitation of 2mm, the most intense rain will be falling from midnight to 4h and at 7h.
The temperature will be between a minimum of 22°C and a maximum of 28°C. The warmest part of the day will be from 13h to 16h.
The forecasted high will be a few degrees lower than the typical October maximum of 31.5°C. The temperature low is forecasted to be also in line with the usual October value of 21°C.
Updated: Oct 27, 2026 @ 10:55:22 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Wednesday, scattered thunderstorms are likely to occur, particularly in the afternoon and evening.

Light precipitation of 9mm is anticipated. The likelihood of rainfall is 48%.

Tomorrow, the highest temperature will be 29°C, while the lowest temperature will be 22°C. The maximum heat index, which indicates how humid air affects the felt temperature, is assessed at 34°C.
The maximum temperature will be a couple of degrees lower than the average highest temperature of 31.5°C in October. The lowest temperature will be in line with the average low of 21°C.

On Wednesday, in Rianápolis, sunrise will be at 05:43 and sunset at 18:20 (-03).

In Rianápolis, the length of the day tomorrow will be 12h and 37min.