All data are in degrees Fahrenheit

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Water temperature in Colonia del Sacramento

Detailed information about the current water temperature in Colonia del Sacramento. 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 Colonia del Sacramento now

57.4

°F

September 17, 19:12

Trend:

stable

Yesterday:

57.8°F

Tomorrow:

58.0°F

Sunrise:

06:48

Sunset:

18:44

Day Length:

11 h. 56 min.

Colonia del Sacramento in September

Minimum:

76.2°F

Average:

78.0°F

Maximum:

79.9°F

Sea water temperature in Colonia del Sacramento today

As of now, in Colonia del Sacramento, the water temperature is 57.4°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 3.0°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 rise 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 62.3°F on 2025, while the historical minimum was 57.8°F on 2016.

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. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 58.6°F, with minimum temperature starting at 58.0°F, while the maximum might reach 59.1°F.

Daily water temperature in Colonia del Sacramento

Date Current Year

actual* / forecast**

last year 10 years average
Sep 3 58.3°F 58.7°F 57.7°F
Sep 4 59.5°F 60.3°F 58.1°F
Sep 5 59.5°F 59.2°F 58.1°F
Sep 6 59.1°F 58.8°F 58.0°F
Sep 7 57.3°F 58.9°F 58.0°F
Sep 8 56.4°F 59.0°F 58.0°F
Sep 9 57.3°F 57.7°F 58.1°F
Sep 10 57.4°F 58.3°F 58.4°F
Sep 11 57.6°F 59.3°F 58.9°F
Sep 12 58.3°F 59.9°F 59.4°F
Sep 13 58.7°F 60.9°F 59.6°F
Sep 14 57.2°F 61.5°F 59.6°F
Sep 15 57.6°F 61.6°F 59.6°F
Sep 16 57.8°F 62.3°F 59.9°F
Sep 17 57.4°F 62.3°F 60.4°F
Sep 18 58.0°F 63.8°F 61.0°F
Sep 19 58.3°F 65.9°F 61.3°F
Sep 20 58.3°F 63.7°F 61.3°F
Sep 21 58.8°F 64.2°F 61.8°F
Sep 22 59.0°F 64.1°F 62.0°F
Sep 23 58.8°F 64.1°F 61.8°F
Sep 24 59.1°F 63.3°F 62.0°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 Colonia del Sacramento by month

In Colonia del Sacramento, the months December through March offer comfortable swimming conditions, which amounts to 111 swimming days.
The warmest water in Colonia del Sacramento was recorded on March 1, 2017, reaching a 84.4°F. While the coldest temperature occurred on July 5, 2025, dipping to 49.5°F. The average readings by season are 77.3°F in Winter, 68.8°F in Spring, 55.8°F in Summer, and 65.7°F in Autumn.