What is the current water temperature in Quarteira?

Q: What is the current water temperature in Quarteira?

As of now, in Quarteira, the water temperature is 20.49°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.

Portugal > Quarteira

Water temperature in Quarteira

Detailed information about the current water temperature in Quarteira. 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.

68.9

°F

August 29, 20:20

Trend:

decreasing

Yesterday:

69.7°F

Tomorrow:

68.7°F

Sunrise:

07:00

Sunset:

20:06

Day Length:

13 h. 6 min.

Quarteira in September

Minimum:

58.5°F

Average:

60.9°F

Maximum:

62.6°F

Sea water temperature in Quarteira today

As of now, in Quarteira, the water temperature is 68.9°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 1.5°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 fall a bit.

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 aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 75.1°F on 2018, while the historical minimum was 65.0°F on 2020.

latest data

last year

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 shows a gradual cooling trend. The average temperature is expected to be 68.2°F, the minimum temperature may reach 67.8°F, and the maximum might stay at 68.7°F.

Daily water temperature in Quarteira

Date	Current Year actual* / forecast**	last year	10 years average
Aug 15	75.8°F	72.9°F	69.0°F
Aug 16	76.0°F	69.9°F	69.2°F
Aug 17	77.0°F	70.6°F	69.3°F
Aug 18	76.9°F	70.3°F	69.2°F
Aug 19	74.8°F	70.2°F	69.3°F
Aug 20	72.7°F	70.3°F	69.5°F
Aug 21	71.2°F	72.0°F	69.4°F
Aug 22	68.8°F	72.5°F	69.5°F
Aug 23	68.5°F	71.5°F	69.9°F
Aug 24	69.0°F	71.7°F	70.1°F
Aug 25	69.0°F	71.8°F	70.2°F
Aug 26	69.3°F	70.3°F	70.4°F
Aug 27	70.3°F	72.1°F	70.5°F
Aug 28	69.7°F	72.4°F	70.4°F
Aug 29	68.9°F	72.2°F	70.4°F
Aug 30	68.7°F	71.7°F	70.2°F
Aug 31	68.4°F	71.5°F	69.8°F
Sep 1	68.4°F	71.1°F	69.9°F
Sep 2	68.2°F	70.6°F	69.7°F
Sep 3	68.3°F	70.5°F	69.7°F
Sep 4	68.0°F	68.5°F	69.4°F
Sep 5	67.8°F	66.8°F	69.3°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 Quarteira by month

In an average year, Quarteira offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Quarteira was recorded on August 17, 2025, reaching a 77.0°F. While the coldest temperature occurred on February 14, 2018, dipping to 56.6°F. The average readings by season are 60.6°F in Winter, 61.4°F in Spring, 68.0°F in Summer, and 67.1°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Santa Luzia	70.7°F	24mi
Alvor	67.0°F	27mi
Lagos	65.8°F	32mi

* current water temperature in this city

** straight line distance from Quarteira