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Porto Alegre

Porto Alegre

© Joice Paz

Water Temperature in the Atlantic Ocean in Porto Alegre, Brazil: Current, Historical Data and Forecast

On this page, you will find comprehensive information about the sea temperature in Porto Alegre in Brazil, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Current Water Temperature in Porto Alegre

25.8°C

TODAY

26.4°C

YESTERDAY

27.7°C

A WEEK AGO

Analysis, Historical Data, and Forecast of Water Temperature

Today sea water temperature in the Atlantic Ocean in Porto Alegre is 25.8°C. This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health.

It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart for Atlantic Ocean in Porto Alegre Over the Last 30 Days

The water temperature in Porto Alegre today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.

According to our forecast, the sea temperature in Porto Alegre will remain nearly unchanged in the coming days, its value will be 25.6°C.

Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.

Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across Brazil to enhance accuracy.

Water temperature data for Porto Alegre and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.

Table of Daily Sea Temperature Data

DateCurrentAverageForecast
Feb 1627.7°C25.8°C
Feb 1728.0°C25.0°C
Feb 1826.7°C25.0°C
Feb 1926.3°C25.8°C
Feb 2026.4°C25.8°C
Feb 2126.9°C25.3°C
Feb 2226.4°C24.8°C
Feb 2326.6°C24.5°C
Feb 2424.5°C25.6°C
Feb 2525.0°C25.5°C
Feb 2625.5°C25.5°C
Feb 2725.5°C25.5°C
Feb 2825.3°C25.5°C
Mar 125.8°C25.5°C
Mar 226.0°C25.6°C
Mar 326.0°C25.6°C
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Sea Temperature in Porto Alegre Throughout the Year

Throughout the year, the sea temperature in Porto Alegre exceeds 77°F (25°C) for 38 days, exceeds 72°F (22°C) for 164 days, and exceeds 64°F (18°C) for 277 days.

Below is the annual chart of sea temperature changes in the Atlantic Ocean in Porto Alegre.

January

MinimumAverageMaximum
23°C26.5°C30°C

February

MinimumAverageMaximum
23°C26°C29°C

March

MinimumAverageMaximum
21°C24.5°C28°C

April

MinimumAverageMaximum
20°C23°C26°C

May

MinimumAverageMaximum
16°C20.5°C25°C

June

MinimumAverageMaximum
13°C17.5°C22°C

July

MinimumAverageMaximum
12°C17°C22°C

August

MinimumAverageMaximum
13°C17°C21°C

September

MinimumAverageMaximum
14°C17.5°C21°C

October

MinimumAverageMaximum
17°C20°C23°C

November

MinimumAverageMaximum
19°C21.5°C24°C

December

MinimumAverageMaximum
21°C24°C27°C

Monthly Water Temperature Histogram for Atlantic Ocean in Porto Alegre

You can explore detailed data on how the water temperature in Porto Alegre varies each month:

Porto Alegre Weather

FEBRUARY 24

25°C / 38°C
clear sky

humidity: 61% | wind: 3 km/h

FEBRUARY 25

24°C / 37°C
few clouds: 11-25%

humidity: 67% | wind: 4 km/h

FEBRUARY 26

25°C / 32°C
few clouds: 11-25%

humidity: 76% | wind: 3 km/h

Rio Grande Do Sul, BrazilRio Grande Do Sul, BrazilRio Grande Do Sul, Brazil

Sea Temperature in the Atlantic Ocean in Porto Alegre: General Trends and Swimming Opportunities

Original name
Porto Alegre
The Local Time
03:45
Time Zone
UTC-3
Sunrise
06:11
Sunset
19:06
Length of the day
12 h 55 m

The coastal climate in the region of Rio Grande Do Sul, Brazil, is humid subtropical, characterized by hot, humid summers and mild winters. The annual average temperature is around 19°C (66°F) with significant rainfall occurring throughout the year.

Porto Alegre is located in South America in the Southern Hemisphere at a latitude of -30 degrees, along the shores of the Atlantic Ocean. Porto Alegre lies within the Rio Grande Do Sul in Brazil.

The average annual daytime air temperature in Porto Alegre is 24°C (75°F), with the average nighttime temperature being 11°C (52°F). The highest average daily temperature occurs in February, reaching 28°C (82°F), while the lowest is in July at 19°C (67°F). As for nighttime temperatures, the minimum average temperature of 7°C (44°F) is recorded in July, and the maximum is in February, reaching 15°C (60°F).

According to historical data, Porto Alegre experiences 171 rainy days per year, which accounts for 47 percent of all days in the year. On average, there are 14 rainy days each month. The wettest month is January, with 20 rainy days and 178 mm (7.0 inches) of precipitation, while the driest month is August, which typically has 10 rainy days and only 151 mm (6.0 inches) of precipitation.

The average annual water temperature in Atlantic Ocean in Porto Alegre is 21°C (70°F). In July, the water reaches its lowest point of the year at 12°C (54°F), while in January, it peaks at 30°C (86°F). The months suitable for comfortable beach vacations and swimming in the Atlantic Ocean are January, February, March, and December. During this period, the water temperature stays above 20°C (68°F) and can reach up to 30°C (86°F) on some days.

Geographical Location of Porto Alegre

Frequently Asked Questions About Porto Alegre and its Water Temperatures

What is the current sea temperature in Porto Alegre?

The water temperature today in the Atlantic Ocean in Porto Alegre is 78°F (25.8°C).

In which months is the water temperature in Porto Alegre comfortable for swimming?

The water temperature in the Atlantic Ocean in Porto Alegre is comfortable for swimming and beach vacations in January, February, March, and December.

What is the water temperature in Porto Alegre during the winter?

The water temperature in the Atlantic Ocean in Porto Alegre during the winter ranges from 21°C to 30°C (70°F to 86°F).

What is the water temperature in Porto Alegre during the spring?

The water temperature in the Atlantic Ocean in Porto Alegre during the spring ranges from 16°C to 28°C (61°F to 82°F).

What is the water temperature in Porto Alegre during the summer?

The water temperature in the Atlantic Ocean in Porto Alegre during the summer ranges from 12°C to 22°C (54°F to 72°F).

What is the water temperature in Porto Alegre during the fall?

The water temperature in the Atlantic Ocean in Porto Alegre during the fall ranges from 14°C to 24°C (57°F to 75°F).

Is it possible to swim in the sea in Porto Alegre year-round?

No, it is not possible to swim in the Atlantic Ocean in Porto Alegre year-round, the months suitable for comfortable swimming are January, February, March, and December.

What sea temperatures can I expect in Porto Alegre in the next month?

In March, the water temperature in the Atlantic Ocean in Porto Alegre will range between 70°F (21°C) and 82°F (28°C)