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 18.94°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

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.

66.1

°F

August 6, 17:09

Trend:

increasing

Yesterday:

65.7°F

Tomorrow:

66.5°F

Sunrise:

07:07

Sunset:

17:55

Day Length:

10 h. 48 min.

Porto Alegre in August

Minimum:

76.7°F

Average:

79.1°F

Maximum:

81.2°F

Sea water temperature in Porto Alegre today

As of now, in Porto Alegre, the water temperature is 66.1°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 5.8°F higher 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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 63.0°F on 2023, while the historical minimum was 57.2°F on 2021.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 66.8°F, with minimum temperature starting at 66.5°F, while the maximum might reach 67.0°F.

Daily water temperature in Porto Alegre

Date	Current Year actual* / forecast**	last year	10 years average
Jul 23	63.3°F	58.6°F	59.9°F
Jul 24	61.7°F	58.7°F	59.9°F
Jul 25	62.4°F	59.1°F	60.3°F
Jul 26	63.3°F	59.4°F	60.4°F
Jul 27	63.1°F	59.3°F	60.5°F
Jul 28	61.1°F	59.1°F	60.0°F
Jul 29	60.8°F	58.8°F	59.8°F
Jul 30	61.7°F	59.0°F	59.7°F
Jul 31	62.6°F	58.4°F	59.7°F
Aug 1	63.6°F	58.6°F	59.7°F
Aug 2	63.8°F	58.2°F	59.9°F
Aug 3	63.3°F	58.1°F	60.1°F
Aug 4	65.5°F	58.1°F	60.4°F
Aug 5	65.7°F	58.7°F	60.6°F
Aug 6	66.1°F	58.8°F	60.3°F
Aug 7	66.5°F	58.8°F	60.7°F
Aug 8	66.8°F	59.2°F	61.0°F
Aug 9	66.9°F	59.3°F	61.2°F
Aug 10	67.0°F	59.4°F	61.3°F
Aug 11	67.0°F	59.4°F	61.2°F
Aug 12	66.6°F	58.5°F	60.8°F
Aug 13	66.6°F	59.3°F	60.8°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, 60.7°F in Summer, and 68.9°F in Autumn.