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 22.7°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.

Brazil > Porto Alegre

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.

72.9

°F

April 19, 10:05

Trend:

decreasing

Yesterday:

73.3°F

Tomorrow:

72.5°F

Sunrise:

06:46

Sunset:

18:01

Day Length:

11 h. 15 min.

Porto Alegre in April

Minimum:

76.9°F

Average:

79.4°F

Maximum:

82.0°F

Sea water temperature in Porto Alegre today

As of now, in Porto Alegre, the water temperature is 72.9°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 1.1°F higher 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

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling 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 74.3°F on 2016, while the historical minimum was 68.2°F on 2022.

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 histoorical minimum and others when it was close to the historical maximum. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 73.0°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
Apr 5	76.9°F	77.3°F	76.0°F
Apr 6	75.1°F	76.9°F	75.7°F
Apr 7	74.3°F	76.3°F	75.5°F
Apr 8	73.4°F	75.6°F	75.1°F
Apr 9	73.3°F	75.4°F	74.8°F
Apr 10	72.8°F	76.1°F	74.7°F
Apr 11	72.4°F	76.7°F	74.6°F
Apr 12	74.0°F	76.1°F	74.8°F
Apr 13	73.1°F	75.5°F	74.4°F
Apr 14	72.9°F	74.9°F	73.9°F
Apr 15	73.3°F	74.4°F	73.6°F
Apr 16	73.6°F	73.8°F	73.0°F
Apr 17	73.4°F	73.2°F	72.6°F
Apr 18	73.3°F	74.1°F	72.3°F
Apr 19	72.9°F	72.9°F	71.8°F
Apr 20	72.5°F	72.5°F	71.4°F
Apr 21	72.6°F	71.8°F	71.5°F
Apr 22	72.9°F	72.4°F	71.8°F
Apr 23	73.0°F	72.7°F	71.9°F
Apr 24	73.2°F	72.5°F	72.2°F
Apr 25	73.4°F	72.4°F	72.3°F
Apr 26	73.5°F	72.3°F	72.4°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 June 20, 2016, dipping to 55.0°F. The average readings by season are 79.1°F in Winter, 73.3°F in Spring, 61.1°F in Summer, and 68.7°F in Autumn.