Live Weather & Forecast
Weather in Porto União
Santa Catarina, Brazil · Real-time conditions & 3-day outlook
17°C
Feels like 17°C
62°F / Feels 62°F
Cloudy
Porto União, Santa Catarina
🌞 Daytime
Updated: 2026-04-21 09:45
Humidity
87%
Wind
3.6 km/h E
Wind Gust
3.7 km/h
Pressure
1019 mb
Visibility
10 km
UV Index
1.5
(Low)
Precipitation
0 mm
Cloud Cover
74%
Dew Point
14.5°C
Wind Degree
93°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
104.9 μg/m³
NO₂
2 μg/m³
O₃
69 μg/m³
SO₂
1.6 μg/m³
PM 2.5
5.7 μg/m³
PM 10
6 μg/m³
Today's Hourly Forecast
24-hour breakdown for Porto União, Santa Catarina
12 AM
13°
Clear
1 AM
12°
Clear
2 AM
11°
Mist
3 AM
11°
Fog
4 AM
11°
Fog
5 AM
11°
Fog
6 AM
11°
Fog
7 AM
11°
Fog
8 AM
15°
Mist
9 AM
17°
Cloudy
10 AM
19°
Sunny
11 AM
23°
Sunny
12 PM
25°
Sunny
1 PM
25°
Sunny
2 PM
27°
Sunny
3 PM
26°
Partly Cloudy
4 PM
26°
Partly Cloudy
5 PM
24°
Partly Cloudy
6 PM
19°
Partly Cloudy
7 PM
18°
Partly Cloudy
8 PM
17°
Partly Cloudy
9 PM
16°
Partly Cloudy
10 PM
16°
Partly Cloudy
11 PM
15°
Partly Cloudy
3-Day Forecast
Daily overview for Porto União, Santa Catarina
Today
Partly Cloudy
27°
/
11°
🌧️ 0% chance of rain
💧 Avg. humidity: 76%
💨 Max wind: 4.3 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 7.4
🌅 Sunrise: 06:43 AM
🌇 Sunset: 06:03 PM
🌙 Waxing Crescent
🌑 Moon: 17% lit
Wed, Apr 22
Partly Cloudy
29°
/
13°
🌧️ 0% chance of rain
💧 Avg. humidity: 69%
💨 Max wind: 5 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 6.3
🌅 Sunrise: 06:44 AM
🌇 Sunset: 06:02 PM
🌙 Waxing Crescent
🌑 Moon: 27% lit
Thu, Apr 23
Partly Cloudy
29°
/
12°
🌧️ 0% chance of rain
💧 Avg. humidity: 72%
💨 Max wind: 6.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 8.1
🌅 Sunrise: 06:44 AM
🌇 Sunset: 06:01 PM
🌙 Waxing Crescent
🌑 Moon: 38% lit
Best Time to Visit Porto União
Plan your trip to Porto União, Brazil around the most favorable weather conditions.
Peak Season
December – March
Southern hemisphere summer — warm and generally dry.
Shoulder Season
April – May, November
Fewer crowds, moderate prices, mild weather.
Off Season
June – September
Cooler winter months; indoor activities preferred.
Frequently Asked Questions
What is the current weather in Porto União?
Current conditions in Porto União: Cloudy, temperature 17°C, humidity 87%.
What is the best time to visit Porto União?
The best time to visit Porto União is typically December – March. Southern hemisphere summer — warm and generally dry.
What is the climate like in Porto União?
Porto União is located at approximately -26.2° latitude. It experiences a temperate southern hemisphere climate.
Does it rain a lot in Porto União?
The wettest period in Porto União is typically during June – September. Cooler winter months; indoor activities preferred.
What should I pack for a trip to Porto União?
For visits to Porto União during December – March: light clothing and sun protection. For June – September: layers and a waterproof jacket are recommended.
What country is Porto União in?
Porto União is located in Brazil, in the state of Santa Catarina.
What are the public holidays in Porto União in 2026?
View the 2026 public holidays for Porto União on our Holidays page.
What are the GPS coordinates used for the weather forecast in Porto União?
The weather forecast for Porto União uses coordinates -26.2336, -51.0828.
What is the current temperature outside in Porto União?
The current outdoor temperature in Porto União is 17°C (63°F) with cloudy.
What is the hourly weather forecast for Porto União today?
Today's hour-by-hour weather breakdown for Porto União is shown in the Hourly Forecast section above, including temperature, rain chance, and conditions for each hour of the day.
What is the weather in Porto União tomorrow hour by hour?
Tomorrow's forecast for Porto União shows a high of 29°C and a low of 13°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in Porto União?
Rain is not expected in Porto União today. Current forecast shows no significant rain probability.
Is it going to rain today in Porto União?
No, rain is not forecast for Porto União today. Current conditions show clear to partly cloudy skies.