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 19.96°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.

67.9

°F

October 29, 23:39

Trend:

increasing

Yesterday:

67.7°F

Tomorrow:

68.3°F

Sunrise:

05:33

Sunset:

18:45

Day Length:

13 h. 12 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 67.9°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 3.6°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 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 minimum temperature for this date. The maximum temperature recorded for this date was 75.2°F on 2021, while the historical minimum was 66.5°F on 2016.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest 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 68.6°F, with minimum temperature starting at 68.3°F, while the maximum might reach 69.0°F.

Daily water temperature in Porto Alegre

Date	Current Year actual* / forecast**	last year	10 years average
Oct 15	66.4°F	70.0°F	68.6°F
Oct 16	66.4°F	69.4°F	68.5°F
Oct 17	67.0°F	69.9°F	68.9°F
Oct 18	66.4°F	70.4°F	68.8°F
Oct 19	66.0°F	69.8°F	68.8°F
Oct 20	66.0°F	69.3°F	69.1°F
Oct 21	65.7°F	68.1°F	69.0°F
Oct 22	67.0°F	68.8°F	69.3°F
Oct 23	66.9°F	69.9°F	69.6°F
Oct 24	68.6°F	71.2°F	69.9°F
Oct 25	68.1°F	73.9°F	70.2°F
Oct 26	67.7°F	73.6°F	70.6°F
Oct 27	67.2°F	73.3°F	70.6°F
Oct 28	67.7°F	72.2°F	71.3°F
Oct 29	67.9°F	71.6°F	71.5°F
Oct 30	68.3°F	71.7°F	71.9°F
Oct 31	68.5°F	71.5°F	72.1°F
Nov 1	68.7°F	69.6°F	72.2°F
Nov 2	68.8°F	69.8°F	72.3°F
Nov 3	68.6°F	70.6°F	72.1°F
Nov 4	68.7°F	70.6°F	72.3°F
Nov 5	69.0°F	72.2°F	72.6°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.