Praia de Cacela Velha sea temperature
Sea-surface temperature for Praia de Cacela Velha, Portugal, with the 7-day outlook and what to wear.
What is the sea temperature at Praia de Cacela Velha today? (20 Oct)
The sea at Praia de Cacela Velha is 20.6 °C today. Most people want a shorty, especially once the wind picks up. The sea and the air are within a degree or so of each other.
Praia de Cacela Velha sea temperature — next 7 days
Sea temperature is cooling across the week, by about 2.0 °C from start to end.
| Date | Sea temp | Range | Suggested wetsuit |
|---|---|---|---|
| Tue 20 Octtoday | 20.5 °C20.1–20.7 °C | 20.1–20.7 °C | 2 mm shorty or spring suit |
| Wed 21 Oct | 19.8 °C19.6–20.1 °C | 19.6–20.1 °C | 2 mm shorty or spring suit |
| Thu 22 Oct | 19.2 °C19.0–19.5 °C | 19.0–19.5 °C | 2 mm shorty or spring suit |
| Fri 23 Oct | 18.7 °C18.5–19.0 °C | 18.5–19.0 °C | 3/2 mm full suit |
| Sat 24 Oct | 18.6 °C18.3–18.9 °C | 18.3–18.9 °C | 3/2 mm full suit |
| Sun 25 Oct | 18.4 °C18.3–18.6 °C | 18.3–18.6 °C | 3/2 mm full suit |
| Mon 26 Oct | 18.5 °C18.3–18.7 °C | 18.3–18.7 °C | 3/2 mm full suit |
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 above | Boardshorts or swimsuit | — |
| 22–24 °C | Rash vest or 1 mm top | — |
| 19–22 °CPraia de Cacela Velha today | 2 mm shorty or spring suit | — |
| 17–19 °C | 3/2 mm full suit | — |
| 14–17 °C | 4/3 mm full suitboots on longer sessions | boots on longer sessions |
| 11–14 °C | 5/4 mm full suitboots and gloves | boots and gloves |
| 7–11 °C | 5/4/3 mm hooded full suitboots and gloves | boots and gloves |
| Below 7 °C | 6/5 mm hooded full suitthick boots and gloves | thick boots and gloves |
Conditions at Praia de Cacela Velha
Water temperature is one input. For wave height, wind and a 0–100 score per sport and ability level, see the full forecast.
Sea temperature near Praia de Cacela Velha
Frequently asked questions.
What is the sea temperature at Praia de Cacela Velha today?
The sea at Praia de Cacela Velha, Portugal is 20.6 °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 de Cacela Velha?
At 20.6 °C, 2 mm shorty or spring suit is the usual choice at Praia de Cacela Velha. Most people want a shorty, especially once the wind picks up. Cold tolerance varies, and wind and session length matter as much as the water temperature.
Is the sea warm enough to swim at Praia de Cacela Velha?
At 20.6 °C the sea at Praia de Cacela Velha is comfortable for swimming without neoprene for most people.
How much does the sea temperature at Praia de Cacela Velha change over a week?
Over the next 7 days the sea at Praia de Cacela Velha stays between 18.3 °C and 20.7 °C. Open water changes temperature slowly, so it rarely moves much inside a week — seasonal change is what matters.

