See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
15°
Mostly Cloudy
Feels Like: 15°
Min: 8°
Max: 16°
The next few hours will be mostly cloudy, with today reaching 16°C and dropping to 9°C. The coming days will be rain throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:34
Sunrise
18:09
Sunset
Moon
Waning Crescent
04:07
Moonrise
14:34
Moonset
Daily Forecast
Today
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Air Quality Data Available
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UV Index
Humidity
Weather in Porto Alegre today, September 07, 2026
Porto Alegre looks damp on September 07, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly.
Expect highs of 16°C and cooler readings close to 8°C. Expect humidity between 51% and 85%, most humid near 23:00. Winds stay light, near 4.1 km/h by 21:00, so the day feels still more than breezy.
Expect the wet theme to continue later, as rain odds reach 66% near 12:00. Cloud amounts hold near 70% around 12:00. Visibility stays near 16.1 km. Expect sunrise at 06:34, sunset at 18:09, and 11 hours 34 minutes of sunlight today overall.
The practical takeaway for Porto Alegre on September 07, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 16°C.
Frequently asked questions about weather in Porto Alegre
How warm does it get in Porto Alegre?
The warmest month in Porto Alegre is April, with average high temperatures of 15°C. The average temperature during this period is around 13°C.
How cold does it get in Porto Alegre?
The coldest month in Porto Alegre is December, with average low temperatures of 7°C. The average temperature during this period is around 9°C.
What is the wettest time of year in Porto Alegre?
The wettest month in Porto Alegre is December, with an average of 33mm of precipitation.
What is the driest time of year in Porto Alegre?
The driest month in Porto Alegre is January, with an average of 33mm of precipitation.
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