What is the current water temperature in Porto Alegre?

As of now, in Porto Alegre, the water temperature is 23.2°C. It's safe to say that the water is comfortably warm for various water-related activities.

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Water temperature in Porto Alegre

Detailed information about the current water temperature in Porto Alegre. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.

73.8

°F

November 21, 12:49

Trend:

increasing

Yesterday:

73.6°F

Tomorrow:

73.9°F

Sunrise:

06:18

Sunset:

20:04

Day Length:

13 h. 46 min.

Porto Alegre in November

Minimum:

77.9°F

Average:

79.4°F

Maximum:

81.6°F

Sea water temperature in Porto Alegre today

As of now, in Porto Alegre, the water temperature is 73.8°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.3°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 77.5°F on 2019, while the historical minimum was 71.3°F on 2023.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the minimum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 74.0°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Porto Alegre

Date	Current Year actual* / forecast**	last year	10 years average
Nov 7	72.1°F	76.8°F	72.0°F
Nov 8	72.3°F	76.7°F	72.2°F
Nov 9	72.3°F	76.2°F	71.8°F
Nov 10	71.0°F	76.2°F	71.7°F
Nov 11	69.5°F	76.0°F	71.6°F
Nov 12	70.0°F	76.4°F	72.0°F
Nov 13	69.7°F	76.1°F	71.7°F
Nov 14	70.5°F	76.3°F	71.8°F
Nov 15	71.8°F	74.5°F	72.6°F
Nov 16	73.6°F	75.2°F	73.3°F
Nov 17	74.4°F	76.5°F	73.6°F
Nov 18	74.8°F	77.7°F	74.1°F
Nov 19	73.9°F	77.4°F	73.8°F
Nov 20	73.6°F	77.2°F	73.8°F
Nov 21	73.8°F	76.5°F	74.0°F
Nov 22	73.9°F	76.0°F	74.2°F
Nov 23	74.1°F	75.9°F	74.4°F
Nov 24	74.1°F	74.5°F	74.3°F
Nov 25	74.0°F	75.2°F	74.3°F
Nov 26	74.2°F	75.1°F	74.5°F
Nov 27	73.9°F	74.9°F	74.2°F
Nov 28	74.0°F	76.1°F	74.3°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Porto Alegre by month

In Porto Alegre, the months December through April offer comfortable swimming conditions, which amounts to 151 swimming days.

The warmest water in Porto Alegre was recorded on March 5, 2025, reaching a 86.6°F. While the coldest temperature occurred on July 5, 2025, dipping to 54.7°F. The average readings by season are 79.1°F in Winter, 73.3°F in Spring, 60.9°F in Summer, and 68.8°F in Autumn.