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: 6mm
  • Wind: 12km/hE 98°
  • Humidity: 75%
  • UV index: 7
  • Sunrise: 05:43 -03
  • Sunset: 18:20 -03
  • ▼
On Wednesday, 28th of October, there will be scattered thunderstorms, which could cause some localized disruption.
The likelihood of rain for tomorrow is low, and light precipitation is forecasted. The maximum predicted temperature is a warm 29°C, while the minimum temperature will be a pleasant 22°C.
The maximum heat index, which adjusts the air temperature based on humidity, is assessed at a humid 34°C. Take into consideration that the heat index values are calculated for shade and light wind conditions.
Anticipated temperatures are trending slightly cooler than October's climate norm 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 32°C.
Coldest hour: 6h 24°C.

Chance of precipitation

Highest chance: 3h 71%.

Hourly weather forecast

  • 0h
  • 24°C
  • Feels like:
    27°C
Thunderstorms
Thunderstorms
  • Precip. probability: 64%
  • Precipitation: 2mm
  • Wind: 8km/hSE 141°
  • Humidity: 89%
  • Pressure: 1014mbar
  • Visibility: 6km
  • UV index: 0
  • ▼
  • 2h
  • 24°C
  • Feels like:
    26°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 58%
  • Precipitation: 2mm
  • Wind: 7km/hSSE 157°
  • Humidity: 90%
  • Pressure: 1014mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 4h
  • 23°C
  • Feels like:
    24°C
Thunderstorms
Thunderstorms
  • Precip. probability: 69%
  • Precipitation: 2mm
  • Wind: 8km/hSSE 150°
  • Humidity: 93%
  • Pressure: 1014mbar
  • Visibility: 6km
  • UV index: 0
  • ▼
Sunrise: 05:43
  • 6h
  • 22°C
  • Feels like:
    24°C
Showers
Showers
  • Precip. probability: 51%
  • Precipitation: 1mm
  • Wind: 6km/hSSE 148°
  • Humidity: 95%
  • Pressure: 1015mbar
  • Visibility: 8km
  • UV index: 0
  • ▼
  • 8h
  • 24°C
  • Feels like:
    26°C
Showers
Showers
  • Precip. probability: 47%
  • Precipitation: 1mm
  • Wind: 9km/hESE 108°
  • Humidity: 89%
  • Pressure: 1016mbar
  • Visibility: 11km
  • UV index: 1
  • ▼
  • 10h
  • 26°C
  • Feels like:
    29°C
Showers
Showers
  • Precip. probability: 37%
  • Precipitation: 1mm
  • Wind: 10km/hE 94°
  • Humidity: 78%
  • Pressure: 1017mbar
  • Visibility: 11km
  • UV index: 5
  • ▼
  • 12h
  • 28°C
  • Feels like:
    30°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 40%
  • Precipitation: 1mm
  • Wind: 11km/hENE 73°
  • Humidity: 71%
  • Pressure: 1015mbar
  • Visibility: 11km
  • UV index: 7
  • ▼
  • 14h
  • 28°C
  • Feels like:
    31°C
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Wind: 11km/hE 96°
  • Humidity: 68%
  • Pressure: 1013mbar
  • Visibility: 16km
  • UV index: 5
  • ▼
  • 16h
  • 29°C
  • Feels like:
    31°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 48%
  • Precipitation: 1mm
  • Wind: 9km/hESE 103°
  • Humidity: 64%
  • Pressure: 1011mbar
  • Visibility: 11km
  • UV index: 1
  • ▼
  • 18h
  • 27°C
  • Feels like:
    29°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 41%
  • Precipitation: 1mm
  • Wind: 8km/hESE 103°
  • Humidity: 74%
  • 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/hE 94°
  • Humidity: 84%
  • Pressure: 1013mbar
  • Visibility: 14km
  • UV index: 0
  • ▼
  • 22h
  • 24°C
  • Feels like:
    26°C
Cloudy
Cloudy
  • Precip. probability: 11%
  • Precipitation: 0mm
  • Wind: 6km/hESE 113°
  • Humidity: 87%
  • Pressure: 1014mbar
  • Visibility: 15km
  • UV index: 0
  • ▼
Tomorrow, a combination of storm-filled, gloomy and showery weather is forecasted.
Rain is forecasted from midnight to 8h, and from 10h to 12h, and from 16h to 19h. With light precipitation of 2mm, the most intense rain will be falling from midnight to 4h.
The temperature will be between a minimum of 22°C and a maximum of 29°C. The hottest part of the day will be at 15h and 16h.
The high will be a few degrees lower than the normal maximum of 31.5°C for October. The night temperature will be also in line with the standard October low of 21°C.
Updated: Oct 27, 2026 @ 14:45:20 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Rianápolis, there will be scattered thunderstorms throughout the day.

Light precipitation of 6mm is anticipated. The possibility of rainfall is 48%.

Tomorrow, the maximum temperature will be 29°C, while the minimum temperature will be 22°C. The maximum heat index, which combines relative humidity and air temperature, is calculated to be 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.