Weather Porto Alegre long-term weather forecast

Long-term weather forecast for Porto Alegre for ten days.

Wednesday, Sep 10

73 / 57°F

0.00 in

7 mph

54 °F	54 °F	3 am
59 °F	61 °F	9 am
73 °F	73 °F	3 pm
59 °F	59 °F	9 pm

sunrise 6:28 am
sunset 6:15 pm

HOURLY

During the day clear, in the evening initially clear, later cloudy. The highest temperature 73 °F. Total rainfall 0.01 in. At night rain. The lowest temperature 57 °F. Total rainfall 0.05 in.

Interactive map weather Brazil

GPS: -30.0328; -51.2302

altitude: 150 ft
local time:

PLACES IN THE AREA

Weather forecast Porto Alegre, Brazil extended forecast

Time			Precip.	Wind	Pressure	Humidity	Dew	total	Fog	Low	Middle	High
Wednesday 09/10/2025
3 AM 2 AM	clear	54 °F 54 °F	0.0 in	5 fps 3 mph northwest	30.1 in	92 %	50 °F	0 %	0%	0%	0%	0%
9 AM 8 AM	clear	59 °F 59 °F	0.0 in	1 fps 1 mph northwest	30.1 in	81 %	54 °F	7 %	0%	0%	0%	7%
3 PM 2 PM	clear	73 °F 73 °F	0.0 in	10 fps 7 mph east-southeast	30.0 in	49 %	52 °F	3 %	0%	0%	0%	3%
9 PM 8 PM	cloudy	59 °F 59 °F	0.01 in	15 fps 10 mph east	30.0 in	88 %	54 °F	85 %	0%	0%	0%	85%
Thursday 09/11/2025
3 AM 2 AM	rain	57 °F 57 °F	0.05 in	13 fps 9 mph west	30.0 in	95 %	55 °F	100 %	0%	0%	35%	99%
9 AM 8 AM	partly cloudy	66 °F 68 °F	0.0 in	13 fps 9 mph west	30.0 in	78 %	59 °F	20 %	0%	1%	18%	0%
3 PM 2 PM	clear	73 °F 72 °F	0.0 in	21 fps 15 mph west	29.9 in	46 %	50 °F	0 %	0%	0%	0%	0%
9 PM 8 PM	clear	63 °F 63 °F	0.0 in	12 fps 9 mph west-southwest	30.1 in	69 %	52 °F	0 %	0%	0%	0%	0%

Porto Alegre, Brazil - information

State: Brazil

GPS coordinates: -30.0328; -51.2302

Time zone: America / Sao Paulo time difference in hours with time in NY is -5 hours

Population: 1 488 252
Altitude: 150 ft
The administrative part:

Rio Grande do Sul, Porto Alegre
Porto Alegre, Porto Alegre

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Weather Porto Alegre, Brazil. Weather forecast for Porto Alegre.

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Data source

Weather forecast for Porto Alegre is supplied by MET Norway Norwegian Meteorological Institute and the NRK.

Feels like

To calculate the perceived temperature, we use the Australian Apparent Temperature (AAT) model, which is designed for year-round calculations and takes air humidity into account in addition to temperature and wind speed.

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Astronomical information Porto Alegre

data are always in the local time

Sun and light

Sept. 10, 2025

Sunrise:	Sunset:
6:28 am	6:15 pm
Noon:	Length of day:
12:21 pm	11:46
Start of civil twilight*:	End of civil twilight*:
6:04 am	6:39 pm
Start of nautical twilight*:	End of nautical twilight*:
5:37 am	7:06 pm
Start of astronomical twilight*:	End of astronomical twilight*:
5:09 am	7:34 pm
* What is Twilight?

Moon and moon phases

Moonrise:	Moonset:
09/09/2025 8:30 pm	09/10/2025 8:02 am
Next new moon:	Next full moon:
09/21/2025	10/06/2025