All data are in degrees Fahrenheit

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Water temperature in Cascais

Detailed information about the current water temperature in Cascais. 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 Cascais now

64.1

°F

August 31, 21:59

Trend:

stable

Yesterday:

64.5°F

Tomorrow:

64.1°F

Sunrise:

07:05

Sunset:

20:10

Day Length:

13 h. 5 min.

Cascais in September

Minimum:

57.2°F

Average:

59.0°F

Maximum:

60.7°F

Sea water temperature in Cascais today

As of now, in Cascais, the water temperature is 64.1°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 0.4°F higher 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 also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 66.2°F on 2015, while the historical minimum was 60.5°F on 2023.

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 maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 63.8°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Cascais

Date Current Year

actual* / forecast**

last year 10 years average
Aug 17 66.8°F 65.1°F 63.5°F
Aug 18 66.8°F 63.7°F 63.3°F
Aug 19 66.8°F 63.2°F 63.4°F
Aug 20 66.0°F 62.1°F 63.6°F
Aug 21 65.0°F 62.6°F 63.8°F
Aug 22 64.8°F 61.4°F 63.4°F
Aug 23 64.5°F 60.6°F 63.3°F
Aug 24 65.1°F 60.8°F 63.7°F
Aug 25 65.1°F 61.3°F 63.9°F
Aug 26 64.8°F 61.1°F 63.7°F
Aug 27 63.4°F 61.1°F 63.6°F
Aug 28 63.4°F 61.1°F 63.5°F
Aug 29 63.2°F 62.3°F 63.7°F
Aug 30 64.5°F 62.3°F 63.8°F
Aug 31 64.1°F 62.3°F 63.7°F
Sep 1 64.1°F 62.6°F 63.8°F
Sep 2 64.2°F 62.1°F 63.8°F
Sep 3 63.7°F 60.5°F 63.3°F
Sep 4 63.4°F 58.9°F 63.1°F
Sep 5 63.5°F 59.4°F 63.1°F
Sep 6 63.7°F 59.1°F 63.4°F
Sep 7 64.1°F 59.1°F 63.7°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 Cascais by month

In an average year, Cascais offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Cascais was recorded on September 20, 2022, reaching a 69.0°F. While the coldest temperature occurred on February 7, 2015, dipping to 54.7°F. The average readings by season are 59.0°F in Winter, 59.5°F in Spring, 63.3°F in Summer, and 63.3°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Lisbon 71.2°F 16mi
Ericeira 65.2°F 18mi
Peniche 66.2°F 46mi

* current water temperature in this city

** straight line distance from Cascais