See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
18°
Light Rain
Feels Like: 21°
Min: 15°
Max: 25°
The next few hours will be foggy, with tomorrow reaching 23°C and dropping to 16°C. The coming days will be rain
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:17
Sunrise
18:16
Sunset
Moon
Waxing Gibbous
12:48
Moonrise
02:18
Moonset
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View stargazing scoreWeather in Porto União tomorrow, September 21, 2026
Porto União starts September 21, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans. Wetter spells lean into the morning, when rain odds reach about 90% near 07:00. Skies look heaviest around 09:00, with cover close to 92%.
The day peaks near 23°C and cools toward 14°C. The air stays humid, with relative humidity between 71% and 100% and the peak around 03:00. Airflow remains manageable, reaching about 4.3 km/h around 15:00.
Expect the wet theme to continue later, as rain odds reach 86% near 12:00. Cloud amounts hold near 92% around 17:00. Visibility stays near 16.1 km. The sun rises at 06:16 and sets at 18:16, for a total of 12 hours 0 minutes of sunlight today.
Taken together, Porto União looks wet enough on September 21, 2026 that flexible outdoor plans work best, with temperatures peaking near 23°C.
Frequently asked questions about weather in Porto União
How warm does it get in Porto União?
The warmest month in Porto União is February, with average high temperatures of 27°C. The average temperature during this period is around 21°C.
How cold does it get in Porto União?
The coldest month in Porto União is July, with average low temperatures of 8°C. The average temperature during this period is around 13°C.
What is the wettest time of year in Porto União?
The wettest month in Porto União is October, with an average of 167mm of precipitation.
What is the driest time of year in Porto União?
The driest month in Porto União is July, with an average of 46mm of precipitation.
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