What is the current water temperature in Porto Alegre?

Q: What is the current water temperature in Porto Alegre?

As of now, in Porto Alegre, the water temperature is 21.93°C. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool.

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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.

71.5

°F

November 12, 23:26

Trend:

decreasing

Yesterday:

71.8°F

Tomorrow:

71.2°F

Sunrise:

06:22

Sunset:

19:57

Day Length:

13 h. 35 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 71.5°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 0.6°F lower than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 75.6°F on 2018, while the historical minimum was 69.5°F on 2022.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 72.5°F, with minimum temperature starting at 71.2°F, while the maximum might reach 73.7°F.

Daily water temperature in Porto Alegre

Date	Current Year actual* / forecast**	last year	10 years average
Oct 29	68.9°F	71.6°F	71.3°F
Oct 30	68.7°F	71.7°F	71.6°F
Oct 31	68.4°F	71.5°F	71.8°F
Nov 1	69.9°F	69.6°F	72.0°F
Nov 2	68.9°F	69.8°F	72.0°F
Nov 3	71.3°F	70.6°F	72.1°F
Nov 4	72.6°F	70.6°F	72.3°F
Nov 5	73.3°F	72.2°F	72.6°F
Nov 6	72.8°F	72.1°F	72.2°F
Nov 7	72.2°F	72.1°F	72.2°F
Nov 8	71.9°F	72.3°F	72.3°F
Nov 9	71.3°F	72.3°F	71.8°F
Nov 10	71.2°F	71.0°F	71.6°F
Nov 11	71.8°F	69.5°F	71.6°F
Nov 12	71.5°F	70.0°F	72.0°F
Nov 13	71.2°F	69.7°F	71.7°F
Nov 14	71.3°F	70.5°F	71.8°F
Nov 15	72.2°F	71.8°F	72.7°F
Nov 16	72.8°F	73.6°F	73.4°F
Nov 17	73.2°F	74.4°F	73.8°F
Nov 18	73.7°F	74.8°F	74.3°F
Nov 19	73.5°F	73.9°F	74.0°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 152 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 6, 2026, dipping to 54.4°F. The average readings by season are 79.3°F in Winter, 73.3°F in Spring, 60.8°F in Summer, and 68.8°F in Autumn.