Water temperature in Quarteira in August
Is it warm enough to swim in Quarteira in August? Average water temperature in Quarteira in August is 21.1°C and therefore suitable for comfortable swimming. The warmest sea in Quarteira in August is 24.3°C, and the coldest is 17.4°C. Average high air temperature in Quarteira in August is 28°C, and average low temperature is 17°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Quarteira
Changes water temperature in Quarteira in August 2025, 2024
To get an accurate forecast for the water temperature in Quarteira for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Quarteira, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of August.
You can choose any other years:
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| 1 August | 23.1°C | 22°C | 18.3°C | 24.2°C |
| 2 August | 23.2°C | 20.8°C | 17.9°C | 23.4°C |
| 3 August | 23.8°C | 21.1°C | 17.4°C | 23.8°C |
| 4 August | 24.2°C | 21.4°C | 18.3°C | 24.2°C |
| 5 August | 24.3°C | 21.8°C | 17.7°C | 24.3°C |
| 6 August | 23.9°C | 21.5°C | 18.7°C | 23.9°C |
| 7 August | 23.1°C | 22.2°C | 18.1°C | 23.1°C |
| 8 August | 22.8°C | 22.5°C | 17.5°C | 23.2°C |
| 9 August | 22.8°C | 22.5°C | 18.2°C | 23.1°C |
| 10 August | 23°C | 22.6°C | 18.7°C | 23.6°C |
| 11 August | 24.1°C | 22.7°C | 18.8°C | 24.1°C |
| 12 August | 24.3°C | 22.8°C | 18.3°C | 24.3°C |
| 13 August | 24.7°C | 21.8°C | 17.8°C | 24.7°C |
| 14 August | 24.3°C | 21.4°C | 18.6°C | 24.3°C |
| 15 August | 24.4°C | 21.5°C | 18.8°C | 24.4°C |
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| 16 August | 24.9°C | 21.5°C | 18.6°C | 24.9°C |
| 17 August | 25.5°C | 22°C | 18°C | 25.5°C |
| 18 August | 24°C | 22°C | 18.7°C | 24°C |
| 19 August | 22.7°C | 22.3°C | 18.7°C | 23.5°C |
| 20 August | 21.8°C | 22.2°C | 18.1°C | 23.4°C |
| 21 August | 20.6°C | 22.2°C | 18.8°C | 23.2°C |
| 22 August | 20.7°C | 21.8°C | 18.8°C | 23.2°C |
| 23 August | 21.2°C | 21.8°C | 19.1°C | 23.5°C |
| 24 August | 21.3°C | 22°C | 18.6°C | 23.6°C |
| 25 August | 21.3°C | 22°C | 19.3°C | 23.8°C |
| 26 August | 21.8°C | 22.3°C | 19.3°C | 23.6°C |
| 27 August | 21.3°C | 22.9°C | 18.7°C | 23.9°C |
| 28 August | 20.3°C | 22.5°C | 18.1°C | 23.9°C |
| 29 August | 20°C | 22.6°C | 18.1°C | 23.6°C |
| 30 August | 19.4°C | 22.2°C | 17.7°C | 23.6°C |
| 31 August | 19°C | 22.1°C | 17.8°C | 23.5°C |
Average water temperature in Quarteira in August over a decade
| 2016 | 2017 | 2018 | 2019 | 2020 |
| 23.3°C | 21.5°C | 21.4°C | 19.5°C | 20.5°C |
| 2021 | 2022 | 2023 | 2024 | 2025 |
| 19.8°C | 20.7°C | 20.7°C | 22°C | 23.4°C |
Quarteira sea state in August
Chart comparing the height of waves in Quarteira in August over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.
Weather and climate in Quarteira in August
This data display average monthly climate indicators in Quarteira in August based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip
- Average HIGH temperature28°C
- Average LOW temperature17°C
- Average rainfall days1 days
- Average rainfall0.1''/3mm
- Average daylight14h
- Average sunshine11h
- Average UV index9
Quarteira water temperature during other months:
You can also view information about water temperature for other months by clicking on the month button below
