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Porto Alegre
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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
19.4°C
TODAY
18.8°C
YESTERDAY
20.3°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Atlantic Ocean in Porto Alegre is 19.4°C. This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming.
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 19.8°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
| Date | Current | Average | Forecast |
|---|---|---|---|
| May 10 | 20.3°C | 21.5°C | |
| May 11 | 19.6°C | 20.8°C | |
| May 12 | 20.8°C | 21.0°C | |
| May 13 | 20.7°C | 20.3°C | |
| May 14 | 19.1°C | 20.5°C | |
| May 15 | 19.7°C | 20.3°C | |
| May 16 | 18.8°C | 20.5°C | |
| May 17 | 19.4°C | 20.5°C | |
| May 18 | 21.0°C | 19.6°C | |
| May 19 | 20.3°C | 19.7°C | |
| May 20 | 20.3°C | 19.8°C | |
| May 21 | 19.5°C | 19.8°C | |
| May 22 | 19.5°C | 19.8°C | |
| May 23 | 19.5°C | 19.8°C | |
| May 24 | 19.8°C | 19.8°C | |
| May 25 | 19.8°C | 19.8°C |
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
| Minimum | Average | Maximum |
|---|---|---|
| 23°C | 26.5°C | 30°C |
February
| Minimum | Average | Maximum |
|---|---|---|
| 23°C | 26°C | 29°C |
March
| Minimum | Average | Maximum |
|---|---|---|
| 21°C | 24.5°C | 28°C |
April
| Minimum | Average | Maximum |
|---|---|---|
| 20°C | 23°C | 26°C |
May
| Minimum | Average | Maximum |
|---|---|---|
| 16°C | 20.5°C | 25°C |
June
| Minimum | Average | Maximum |
|---|---|---|
| 13°C | 17.5°C | 22°C |
July
| Minimum | Average | Maximum |
|---|---|---|
| 12°C | 17°C | 22°C |
August
| Minimum | Average | Maximum |
|---|---|---|
| 13°C | 17°C | 21°C |
September
| Minimum | Average | Maximum |
|---|---|---|
| 14°C | 17.5°C | 21°C |
October
| Minimum | Average | Maximum |
|---|---|---|
| 17°C | 20°C | 23°C |
November
| Minimum | Average | Maximum |
|---|---|---|
| 19°C | 21.5°C | 24°C |
December
| Minimum | Average | Maximum |
|---|---|---|
| 21°C | 24°C | 27°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
MAY 18
18°C / 23°C
light rainhumidity: 86% | wind: 2 km/h
MAY 19
18°C / 21°C
broken clouds: 51-84%humidity: 92% | wind: 3 km/h
MAY 20
18°C / 19°C
light rainhumidity: 95% | wind: 3 km/h
MAY 21
18°C / 18°C
moderate rainhumidity: 95% | wind: 4 km/h
Sea Temperature in the Atlantic Ocean in Porto Alegre: General Trends and Swimming Opportunities
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
Nearby Cities
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 67°F (19.4°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 June, the water temperature in the Atlantic Ocean in Porto Alegre will range between 55°F (13°C) and 72°F (22°C)