Praia da Alagoa sea temperature
Sea-surface temperature for Praia da Alagoa, Portugal, with the 7-day outlook and what to wear.
What is the sea temperature at Praia da Alagoa today? (3 Sept)
The sea at Praia da Alagoa is 24.3 °C today. Warm enough to go without neoprene for a normal session. The sea and the air are within a degree or so of each other.
Praia da Alagoa sea temperature — next 7 days
Sea temperature varies by under 0.7 °C across the week.
| Date | Sea temp | Range | Suggested wetsuit |
|---|---|---|---|
| Thu 3 Septtoday | 24.4 °C | 24.1–24.7 °C | Boardshorts or swimsuit |
| Fri 4 Sept | 24.4 °C | 24.2–24.8 °C | Boardshorts or swimsuit |
| Sat 5 Sept | 24.3 °C | 24.2–24.5 °C | Boardshorts or swimsuit |
| Sun 6 Sept | 24.3 °C | 24.2–24.4 °C | Boardshorts or swimsuit |
| Mon 7 Sept | 24.3 °C | 24.2–24.6 °C | Boardshorts or swimsuit |
| Tue 8 Sept | 24.3 °C | 24.2–24.5 °C | Boardshorts or swimsuit |
| Wed 9 Sept | 24.3 °C | 24.2–24.5 °C | Boardshorts or swimsuit |
Figures are modelled sea-surface temperature, not readings from a buoy or a thermometer in the shallows — expect a degree either way, and more in a shallow bay on a hot afternoon. Wetsuit suggestions are general guidance: cold tolerance varies a lot between people, and wind, session length and air temperature matter as much as the water does.
What wetsuit for what sea temperature?
| Sea temperature | Wetsuit | Extras |
|---|---|---|
| 24 °C and abovePraia da Alagoa today | Boardshorts or swimsuit | — |
| 22–24 °C | Rash vest or 1 mm top | — |
| 19–22 °C | 2 mm shorty or spring suit | — |
| 17–19 °C | 3/2 mm full suit | — |
| 14–17 °C | 4/3 mm full suit | boots on longer sessions |
| 11–14 °C | 5/4 mm full suit | boots and gloves |
| 7–11 °C | 5/4/3 mm hooded full suit | boots and gloves |
| Below 7 °C | 6/5 mm hooded full suit | thick boots and gloves |
Conditions at Praia da Alagoa
Water temperature is one input. For wave height, wind and a 0–100 score per sport and ability level, see the full forecast.
Frequently asked questions.
What is the sea temperature at Praia da Alagoa today?
The sea at Praia da Alagoa, Portugal is 24.3 °C today. This is modelled sea-surface temperature rather than a buoy reading, so allow a degree either way.
What wetsuit do I need at Praia da Alagoa?
At 24.3 °C, boardshorts or swimsuit is the usual choice at Praia da Alagoa. Warm enough to go without neoprene for a normal session. Cold tolerance varies, and wind and session length matter as much as the water temperature.
Is the sea warm enough to swim at Praia da Alagoa?
At 24.3 °C the sea at Praia da Alagoa is comfortable for swimming without neoprene for most people.
How much does the sea temperature at Praia da Alagoa change over a week?
Over the next 7 days the sea at Praia da Alagoa stays between 24.1 °C and 24.8 °C. Open water changes temperature slowly, so it rarely moves much inside a week — seasonal change is what matters.

