Water temperature in Porto Alegre
78.7
°F
March 3, 09:23
Trend:
decreasingYesterday:
78.9°FTomorrow:
78.6°F
Sunrise:
Sunset:
Day Length:
12 h. 39 min.Porto Alegre in March
Minimum:
77.1°FAverage:
79.9°FMaximum:
82.7°FSea water temperature in Porto Alegre today
As of now, in Porto Alegre, the water temperature is 78.7°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.3°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 stay about the same.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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 85.7°F on 2025, while the historical minimum was 78.9°F on 2021.
Daily water temperature in Porto Alegre
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Feb 17 | 82.8°F | 81.7°F | 80.5°F |
| Feb 18 | 82.5°F | 81.4°F | 80.5°F |
| Feb 19 | 82.1°F | 81.1°F | 80.6°F |
| Feb 20 | 81.6°F | 82.3°F | 80.6°F |
| Feb 21 | 81.0°F | 82.3°F | 80.5°F |
| Feb 22 | 82.0°F | 82.7°F | 80.2°F |
| Feb 23 | 81.6°F | 82.7°F | 80.4°F |
| Feb 24 | 81.5°F | 83.5°F | 80.5°F |
| Feb 25 | 80.2°F | 82.4°F | 80.5°F |
| Feb 26 | 79.8°F | 83.0°F | 80.7°F |
| Feb 27 | 78.9°F | 84.2°F | 81.0°F |
| Feb 28 | 79.2°F | 83.6°F | 80.9°F |
| Mar 1 | 78.8°F | 83.5°F | 80.7°F |
| Mar 2 | 78.9°F | 83.1°F | 80.7°F |
| Mar 3 | 78.7°F | 85.7°F | 80.9°F |
| Mar 4 | 78.6°F | 86.2°F | 80.9°F |
| Mar 5 | 78.5°F | 86.6°F | 80.7°F |
| Mar 6 | 78.2°F | 85.7°F | 80.4°F |
| Mar 7 | 77.8°F | 85.6°F | 80.1°F |
| Mar 8 | 77.9°F | 85.7°F | 80.1°F |
| Mar 9 | 77.7°F | 85.4°F | 80.0°F |
| Mar 10 | 77.9°F | 85.3°F | 80.1°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.