Praia do Tamariz, Estoril, Portugal – a wide sandy beach below a castle-style villa and the seafront promenade
Portugal · Estoril

Praia do Tamariz Sea Temperature Today

Sea
/
Air
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UV
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Refreshing
⁦18–23°C⁩

The sea temperature at Estoril (Praia do Tamariz) today is 18 °C / 64 °F – cold to refreshing water, better for a short swim. The usual October average is 17.7 °C / 64 °F. Over the last 30 days the sea has cooled from 19.1 °C to 18 °C. Rarely swimmable – the sea seldom averages 18 °C or more. Source: Sea Temp Map (seatempmap.com) – NASA MUR satellite data and the Copernicus Marine sea forecast.

Last updated ·

Climate · monthly averages

Sea temperature by month

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.

Warmest in September (17.9°C). Coldest in March (14.6°C). Rarely swimmable – the sea seldom averages 18 °C or more.

Praia do Tamariz, Estoril, Portugal

The sea temperature at Estoril (Praia do Tamariz) today is 18 °C (64 °F) – cold to refreshing water, better for a short swim. The usual October average is 17.7 °C. Over the last 30 days the sea has cooled from 19.1 °C to 18 °C. Rarely swimmable – the sea seldom averages 18 °C or more. Source: Sea Temp Map (seatempmap.com) – NASA MUR satellite data and the Copernicus Marine sea forecast.


Sea temperature by month – Praia do Tamariz
MonthMinAvgMax
January14.2°C / 57.5°F15.0°C / 59.1°F15.6°C / 60.2°F
February14.1°C / 57.5°F14.7°C / 58.4°F15.6°C / 60.1°F
March14.2°C / 57.6°F14.6°C / 58.3°F15.0°C / 58.9°F
April14.8°C / 58.6°F15.5°C / 60.0°F16.0°C / 60.8°F
May15.7°C / 60.3°F16.0°C / 60.8°F16.4°C / 61.5°F
June16.1°C / 61.0°F17.1°C / 62.7°F18.0°C / 64.4°F
July16.6°C / 61.8°F17.1°C / 62.7°F17.3°C / 63.1°F
August16.7°C / 62.0°F17.3°C / 63.2°F18.1°C / 64.6°F
September16.5°C / 61.7°F17.9°C / 64.3°F18.9°C / 66.0°F
October16.8°C / 62.2°F17.7°C / 63.8°F19.0°C / 66.2°F
November16.0°C / 60.8°F17.2°C / 62.9°F17.9°C / 64.2°F
December14.7°C / 58.5°F15.8°C / 60.4°F16.4°C / 61.5°F

Air temperature by month – Praia do Tamariz
MonthMinAvgMax
January13.3°C / 55.9°F13.8°C / 56.8°F14.2°C / 57.6°F
February13.5°C / 56.3°F13.9°C / 57.1°F14.4°C / 57.9°F
March13.5°C / 56.2°F14.0°C / 57.1°F14.4°C / 57.8°F
April14.7°C / 58.5°F15.1°C / 59.3°F15.4°C / 59.8°F
May15.8°C / 60.4°F16.1°C / 60.9°F16.2°C / 61.2°F
June17.1°C / 62.8°F17.4°C / 63.3°F17.6°C / 63.6°F
July17.8°C / 64.0°F18.0°C / 64.5°F18.2°C / 64.8°F
August18.1°C / 64.5°F18.3°C / 64.9°F18.5°C / 65.3°F
September18.3°C / 65.0°F18.6°C / 65.5°F18.8°C / 65.8°F
October18.0°C / 64.4°F18.2°C / 64.8°F18.4°C / 65.0°F
November16.2°C / 61.1°F16.4°C / 61.6°F16.8°C / 62.2°F
December14.4°C / 57.9°F14.8°C / 58.6°F15.2°C / 59.3°F

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes. (Copernicus ERA5)

Praia do Tamariz holidays

Estoril is a seaside resort on the Lisbon coast of Portugal, about 25 km west of the capital in the municipality of Cascais. Its best-known beach, Praia do Tamariz, lies below the Casino Estoril gardens, and a seafront promenade links Estoril with Cascais.

Beaches

Praia do Tamariz is a sandy beach with a seawater pool beside the pier at its eastern end; when the Atlantic is rough, follow the local bathing flags. Praia da Poça in São João do Estoril is a wider stretch of sand popular with families, and Praia da Azarujinha, also in São João do Estoril, is a small cove tucked below the cliffs. The Paredão, a promenade of around 3 km, runs along the shore from São João do Estoril to Cascais and is good for walking or running between beaches. Carcavelos, a few stops east on the train, is a long open beach known for surfing. Lifeguards watch the main beaches during the bathing season.

Things to do

Casino Estoril, with the Parque do Estoril gardens in front, is at the heart of the resort. Cascais, a short walk along the promenade, has an old centre, a marina and the Boca do Inferno, a chasm in the cliffs where waves crash in rough weather. Beyond Cascais the coast road passes Guincho beach on the way to Cabo da Roca, the westernmost point of mainland Europe. Sintra, with the Pena Palace and the Moorish Castle in its wooded hills, is about half an hour inland, and the Estoril Circuit hosts motor racing.

Weather and best time to visit

Estoril has mild, wet winters and warm, dry summers, when July and August are the busiest months on the beaches. The Atlantic keeps the water cooler than in the Mediterranean, and in summer a northerly wind often picks up in the afternoon. June and September are good months for walking the coast and visiting Sintra with fewer crowds.

Hotels and where to stay

Hotels in Estoril cluster around the casino gardens and along the seafront, within walking distance of Tamariz and the train station. Monte Estoril, between Estoril and Cascais, has smaller hotels and guesthouses close to the promenade, and Cascais, one stop further on the train, adds more hotels near its old centre.

Signature hotels: Palácio Estoril Hotel, Golf & Wellness

Airport and getting there

Lisbon Airport (LIS) is about 30 km from Estoril, roughly half an hour by car outside rush hour. The Cascais railway line from Lisbon's Cais do Sodré station stops at Estoril, next to Praia do Tamariz, and continues to Cascais, making a car unnecessary for a beach stay.

Frequently asked questions

Is the sea at Praia do Tamariz warm enough for swimming today?

Today, October 28, the sea at Praia do Tamariz is 18 °C (64 °F) – cold to refreshing water, better for a short swim. The usual October average is 17.7 °C / 64 °F.

What is a good sea temperature for swimming?

No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C / 55 °F only for cold-water swimmers, 13–18 °C / 55–64 °F icy, 18–23 °C / 64–73 °F cold to refreshing, 23–28 °C / 73–82 °F refreshing to pleasantly warm and above 28 °C / 82 °F as warm as a bath. Right now the sea at Praia do Tamariz is 18 °C / 64 °F.

Can you swim at Praia do Tamariz in June?

In June the sea at Praia do Tamariz (Estoril, Portugal) averages 17.1 °C / 63 °F – icy water, most people reach for a wetsuit. It keeps warming until September, when it peaks at 17.9 °C / 64 °F.

Is the sea at Praia do Tamariz still warm in November?

In November the sea at Praia do Tamariz (Estoril, Portugal) still averages 17.2 °C / 63 °F – icy water, most people reach for a wetsuit.