All data are in degrees Fahrenheit

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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.
Sea temperature in Porto Alegre now

59.6

°F

June 21, 12:42

Trend:

stable

Yesterday:

59.2°F

Tomorrow:

59.5°F

Sunrise:

07:20

Sunset:

17:33

Day Length:

10 h. 13 min.

Porto Alegre in June

Minimum:

76.9°F

Average:

79.3°F

Maximum:

81.8°F

Sea water temperature in Porto Alegre today

As of now, in Porto Alegre, the water temperature is 59.6°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 1.6°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 fall a bit.

Recent sea temperature and forecast

Today's water temperature is considerably 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 65.9°F on 2019, while the historical minimum was 55.2°F on 2016.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 59.5°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
Jun 7 63.1°F 62.0°F 62.9°F
Jun 8 63.0°F 62.4°F 62.8°F
Jun 9 62.3°F 62.7°F 62.7°F
Jun 10 62.2°F 62.9°F 62.9°F
Jun 11 61.3°F 64.1°F 62.7°F
Jun 12 60.0°F 63.9°F 62.5°F
Jun 13 60.1°F 64.6°F 62.4°F
Jun 14 59.4°F 65.4°F 62.2°F
Jun 15 59.6°F 66.7°F 62.1°F
Jun 16 60.2°F 66.2°F 61.9°F
Jun 17 59.2°F 65.6°F 61.6°F
Jun 18 59.1°F 65.0°F 61.4°F
Jun 19 59.1°F 64.5°F 61.1°F
Jun 20 59.2°F 64.7°F 61.0°F
Jun 21 59.6°F 64.8°F 61.2°F
Jun 22 59.5°F 65.0°F 61.1°F
Jun 23 59.5°F 66.0°F 61.1°F
Jun 24 59.5°F 65.7°F 61.0°F
Jun 25 59.6°F 65.3°F 61.2°F
Jun 26 59.5°F 64.8°F 61.0°F
Jun 27 59.3°F 64.0°F 60.8°F
Jun 28 59.5°F 63.8°F 61.1°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, 61.0°F in Summer, and 68.7°F in Autumn.