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 18.48°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.

65.3

°F

August 10, 21:11

Trend:

stable

Yesterday:

65.5°F

Tomorrow:

65.3°F

Sunrise:

06:44

Sunset:

20:31

Day Length:

13 h. 47 min.

Quarteira in August

Minimum:

58.0°F

Average:

60.7°F

Maximum:

62.7°F

Sea water temperature in Quarteira today

As of now, in Quarteira, the water temperature is 65.3°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 3.2°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 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 73.4°F on 2016, while the historical minimum was 64.2°F on 2021.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 66.0°F, with minimum temperature starting at 65.3°F, while the maximum might reach 66.5°F.

Daily water temperature in Quarteira

Date	Current Year actual* / forecast**	last year	10 years average
Jul 27	64.0°F	68.5°F	68.5°F
Jul 28	65.6°F	69.2°F	68.7°F
Jul 29	67.6°F	67.5°F	68.4°F
Jul 30	67.4°F	68.0°F	68.5°F
Jul 31	67.2°F	70.0°F	68.6°F
Aug 1	68.4°F	71.3°F	69.1°F
Aug 2	68.9°F	73.4°F	69.0°F
Aug 3	68.8°F	72.7°F	68.6°F
Aug 4	67.1°F	73.7°F	68.7°F
Aug 5	67.7°F	75.1°F	68.9°F
Aug 6	66.1°F	75.7°F	68.8°F
Aug 7	64.9°F	74.7°F	69.0°F
Aug 8	65.8°F	73.2°F	69.0°F
Aug 9	65.5°F	72.6°F	68.5°F
Aug 10	65.3°F	72.6°F	68.4°F
Aug 11	65.3°F	72.6°F	68.4°F
Aug 12	66.2°F	75.2°F	69.3°F
Aug 13	66.1°F	75.3°F	69.3°F
Aug 14	65.9°F	76.2°F	69.1°F
Aug 15	66.0°F	75.8°F	69.1°F
Aug 16	66.3°F	76.0°F	69.5°F
Aug 17	66.5°F	77.0°F	69.6°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 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, 68.0°F in Summer, and 67.0°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Santa Luzia	69.0°F	24mi
Alvor	63.4°F	27mi
Lagos	61.8°F	32mi

* current water temperature in this city

** straight line distance from Quarteira