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, in Rianápolis, expect scattered thunderstorms that may be accompanied by brief heavy rain and thunder.
The chance of rain is low, and light precipitation is anticipated. Temperatures are predicted to range from a maximum of a moderately hot 29°C to a minimum of a pleasant 22°C.
The maximum heat index, which integrates air moisture with ambient temperature, is computed to be a tropical 34°C. Take into consideration that the heat index values are calculated for shade and light wind conditions.
The forecasted top temperature is expected to be relatively lower than the usual October maximum 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, on Wednesday, a combination of dull, thunderstorm-prone and rain-filled weather is forecasted.
Rain is forecasted 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 the lowest temperature of 22°C and the highest temperature of 28°C. The warmest part of the day will be from 13h to 16h.
The forecasted high will be relatively lower than the typical October maximum of 31.5°C. The lowest temperature is also resembling October's typical minimum of 21°C.
Updated: Oct 27, 2026 @ 09:03:11 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Rianápolis, expect scattered thunderstorms throughout the day, particularly in the afternoon.

Light precipitation of 9mm is forecasted. 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 factors the actual air temperature with the relative humidity, is evaluated at 34°C.
The maximum temperature will be a few 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, tomorrow, there will be 12h and 37min of daylight.