Silver Coast is a coastal area of Portugal on the Atlantic Ocean, with 34 tracked beaches. The sea here ranges from about 14°C in the coolest month to 21°C at the summer peak, with roughly 3 months a year sitting above 20°C — the level most swimmers describe as pleasant without a wetsuit. Use the beach list below to check the current sea temperature at each spot before you head out.
Silver Coast
34 tracked beaches in Silver Coast, Portugal, with live Atlantic Ocean temperatures.
Sea
Atlantic Ocean
Avg sea temp now
20.9°C
Best months
July – September
Best time to swim in Silver Coast
The sea in Silver Coast peaks in August, when the water averages around 21°C.
The main swimming season runs from July – September, when surface temperatures stay comfortable for extended sessions.
On average, 3 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
Shoulder months like June and October are noticeably cooler but often quieter, with fewer crowds and steadier weather.
Outside peak season the water drops toward 14°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable.
The coldest month is typically February at around 14°C, when cold-water swimmers dominate the coast.
Silver Coast sea temperature history
Long-term climatology for Silver Coast shows an annual mean sea temperature of 18°C, ranging from 14°C in winter to 21°C at the summer peak.
The seasonal swing is roughly 7°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.
Recent decades have trended slightly warmer at Silver Coast, in line with regional sea-surface temperature records for the wider basin.
Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.
Jan
15°C
Feb
14°C
Mar
15°C
Apr
16°C
May
17°C
Jun
19°C
Jul
20°C
Aug
21°C
Sep
21°C
Oct
19°C
Nov
18°C
Dec
16°C
Values are area averages; individual beaches vary by exposure and depth.
Silver Coast sea temperature: frequently asked questions
What is the warmest month to swim in Silver Coast?
August is the warmest month in Silver Coast, when the sea averages about 21°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Silver Coast?
The coldest month in Silver Coast is typically February, when the water averages around 14°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Silver Coast without a wetsuit?
The main swimming season in Silver Coast runs from July – September — about 3 months a year when the sea sits above 20°C, the level most swimmers describe as pleasant without a wetsuit.
Do I need a wetsuit in Silver Coast?
Outside peak summer the water in Silver Coast drops toward 14°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable. In peak months most swimmers go without.
What is the average sea temperature in Silver Coast?
The long-term annual mean sea temperature in Silver Coast is about 18°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Silver Coast?
The live reading at the top of this page shows the current sea temperature in Silver Coast, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Beaches in the Silver Coast
Ranked by current live sea temperature.
- 1Praia da Figueira da FozFigueira da Foz, Portugal21.6°C
- 2Praia de Sao LourenoEriceira, Portugal21.6°C
- 3Praia da Foz do ArelhoFoz do Arelho, Portugal21.5°C
- 4Praia da FofaLourinha, Portugal21.5°C
- 5Praia da Cova GalaFigueira da Foz, Portugal21.5°C
- 6Praia de Sao JacintoAveiro, Portugal21.5°C
- 7Praia do Guincho PenichePeniche, Portugal21.4°C
- 8Praia de NazaréNazaré, Portugal21.3°C
- 9Praia da AssentaTorres Vedras, Portugal21.3°C
- 10Praia da EriceiraEriceira, Portugal21.3°C
- 11Praia de Ribeira dIlhasEriceira, Portugal21.3°C
- 12Praia da ConsolacaoPeniche, Portugal21.2°C
- 13Praia da Areia BrancaLourinha, Portugal21.2°C
- 14Praia do SupertubosPeniche, Portugal21.1°C
- 15Praia do Molhe LestePeniche, Portugal20.9°C
- 16Praia de Porto NovoTorres Vedras, Portugal20.9°C
- 17Praia de MiraMira, Portugal20.9°C
- 18Praia de Salir do PortoSalir, Portugal20.8°C
- 19Praia de PedrogaoLeiria, Portugal20.8°C
- 20Praia do BalealPeniche, Portugal20.7°C
- 21Praia da VagueiraVagos, Portugal20.7°C
- 22Praia de Santa CruzTorres Vedras, Portugal20.6°C
- 23Praia do Cabedelo FigueiraFigueira da Foz, Portugal20.6°C
- 24Praia de PenichePeniche, Portugal20.5°C
- 25Praia de Sao Martinho do PortoSao Martinho, Portugal20.5°C
- 26Praia dos NavegantesTorres Vedras, Portugal20.5°C
- 27Praia da Costa NovaIlhavo, Portugal20.5°C
- 28Praia de Sao Pedro MoelMarinha Grande, Portugal20.4°C
- 29Praia de Osso da BaleiaPombal, Portugal20.4°C
- 30Praia da BarraIlhavo, Portugal20.4°C
- 31Praia de BuarcosFigueira da Foz, Portugal20.4°C
- 32Praia dos CoxosEriceira, Portugal20.4°C
- 33Praia do NorteNazaré, Portugal20.3°C
- 34Praia da VieiraMarinha Grande, Portugal20.3°C
Swimming in the Silver Coast — FAQ
How warm is the sea in the Silver Coast in September?
The Atlantic Ocean off the Silver Coast averages about 21.0°C in September, based on long-term monthly averages for this coast.
When is the best time to swim in the Silver Coast?
The Silver Coast is warmest in August (around 21.0°C) and coldest in February (around 14.0°C). There are typically 0 months a year when the water sits above 22°C.
What is the average yearly sea temperature in the Silver Coast?
Across all twelve months, the sea in the Silver Coast averages about 17.6°C.
Do you need a wetsuit to swim in the Silver Coast?
The sea in the Silver Coast stays below 22°C even at its warmest (~21.0°C in August), so a 3/2mm or thicker wetsuit is recommended for longer swims year-round.