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 20.31°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.

68.6

°F

September 18, 22:00

Trend:

stable

Yesterday:

67.6°F

Tomorrow:

68.4°F

Sunrise:

07:17

Sunset:

19:36

Day Length:

12 h. 19 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 68.6°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 0.6°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming 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 73.4°F on 2018, while the historical minimum was 65.9°F on 2017.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 68.3°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
Sep 4	64.3°F	68.5°F	69.0°F
Sep 5	64.2°F	66.8°F	68.8°F
Sep 6	65.2°F	66.2°F	69.0°F
Sep 7	65.9°F	65.4°F	69.2°F
Sep 8	67.4°F	63.5°F	69.4°F
Sep 9	67.1°F	64.3°F	69.5°F
Sep 10	65.6°F	63.0°F	69.3°F
Sep 11	63.5°F	62.0°F	68.7°F
Sep 12	63.9°F	63.4°F	68.7°F
Sep 13	65.1°F	62.8°F	68.7°F
Sep 14	64.1°F	64.2°F	68.6°F
Sep 15	65.0°F	64.1°F	68.8°F
Sep 16	66.1°F	65.8°F	69.0°F
Sep 17	67.6°F	66.7°F	68.9°F
Sep 18	68.6°F	67.7°F	69.2°F
Sep 19	68.4°F	68.8°F	69.0°F
Sep 20	68.4°F	69.4°F	69.0°F
Sep 21	68.2°F	69.5°F	68.9°F
Sep 22	68.3°F	69.8°F	68.9°F
Sep 23	68.3°F	70.0°F	68.9°F
Sep 24	68.4°F	70.2°F	69.0°F
Sep 25	68.3°F	69.6°F	68.9°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 67.0°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Santa Luzia	68.6°F	24mi
Alvor	67.3°F	27mi
Lagos	65.6°F	32mi

* current water temperature in this city

** straight line distance from Quarteira