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 18.55°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

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.

65.4

°F

August 31, 15:33

Trend:

decreasing

Yesterday:

65.5°F

Tomorrow:

65.2°F

Sunrise:

07:02

Sunset:

20:03

Day Length:

13 h. 1 min.

Quarteira in September

Minimum:

58.5°F

Average:

60.7°F

Maximum:

62.6°F

Sea water temperature in Quarteira today

As of now, in Quarteira, the water temperature is 65.4°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 4.2°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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 74.2°F on 2016, while the historical minimum was 64.4°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 minimum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 65.0°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Quarteira

Date	Current Year actual* / forecast**	last year	10 years average
Aug 17	69.5°F	77.0°F	69.6°F
Aug 18	70.1°F	76.9°F	69.5°F
Aug 19	69.4°F	74.8°F	69.5°F
Aug 20	70.4°F	72.7°F	69.8°F
Aug 21	70.1°F	71.2°F	69.7°F
Aug 22	67.6°F	68.8°F	69.4°F
Aug 23	65.9°F	68.5°F	69.8°F
Aug 24	67.2°F	69.0°F	70.1°F
Aug 25	67.2°F	69.0°F	70.3°F
Aug 26	67.3°F	69.3°F	70.5°F
Aug 27	66.7°F	70.3°F	70.5°F
Aug 28	66.3°F	69.7°F	70.3°F
Aug 29	66.2°F	68.9°F	70.0°F
Aug 30	65.5°F	67.8°F	69.7°F
Aug 31	65.4°F	66.4°F	69.6°F
Sep 1	65.2°F	64.8°F	69.5°F
Sep 2	65.0°F	63.4°F	69.2°F
Sep 3	65.1°F	64.2°F	69.3°F
Sep 4	64.9°F	64.3°F	69.1°F
Sep 5	64.8°F	64.2°F	69.0°F
Sep 6	65.1°F	65.2°F	69.3°F
Sep 7	65.2°F	65.9°F	69.5°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 12, 2026, dipping to 56.2°F. The average readings by season are 60.5°F in Winter, 61.4°F in Spring, 67.9°F in Summer, and 67.0°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Santa Luzia	63.9°F	24mi
Alvor	64.5°F	27mi
Lagos	63.8°F	32mi

* current water temperature in this city

** straight line distance from Quarteira