Praia das Furnas sea temperature
Sea-surface temperature for Praia das Furnas, Portugal, with the 7-day outlook and what to wear.
What is the sea temperature at Praia das Furnas today? (3 Sept)
The sea at Praia das Furnas is 17.9 °C today. A summer full suit is the standard choice at this temperature. The sea is about 2 °C colder than the air, so it will feel cool going in even on a warm day.
Praia das Furnas sea temperature — next 7 days
Sea temperature is cooling across the week, by about 1.4 °C from start to end.
| Date | Sea temp | Range | Suggested wetsuit |
|---|---|---|---|
| Thu 3 Septtoday | 18.4 °C | 17.6–19.2 °C | 3/2 mm full suit |
| Fri 4 Sept | 18.6 °C | 18.3–18.8 °C | 3/2 mm full suit |
| Sat 5 Sept | 18.9 °C | 18.3–19.7 °C | 3/2 mm full suit |
| Sun 6 Sept | 18.6 °C | 18.1–19.0 °C | 3/2 mm full suit |
| Mon 7 Sept | 17.6 °C | 17.3–18.0 °C | 3/2 mm full suit |
| Tue 8 Sept | 17.2 °C | 16.9–17.4 °C | 3/2 mm full suit |
| Wed 9 Sept | 17.0 °C | 16.7–17.2 °C | 4/3 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 °C | 2 mm shorty or spring suit | — |
| 17–19 °CPraia das Furnas today | 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 das Furnas
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 das Furnas today?
The sea at Praia das Furnas, Portugal is 17.9 °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 das Furnas?
At 17.9 °C, 3/2 mm full suit is the usual choice at Praia das Furnas. A summer full suit is the standard choice at this temperature. Cold tolerance varies, and wind and session length matter as much as the water temperature.
Is the sea warm enough to swim at Praia das Furnas?
At 17.9 °C the sea at Praia das Furnas is swimmable but brisk — fine for a short swim, and most people want a wetsuit for longer.
How much does the sea temperature at Praia das Furnas change over a week?
Over the next 7 days the sea at Praia das Furnas stays between 16.7 °C and 19.7 °C. Open water changes temperature slowly, so it rarely moves much inside a week — seasonal change is what matters.
