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
18.0°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, Portugal18.7°C
- 2Praia de NazaréNazaré, Portugal18.5°C
- 3Praia do BalealPeniche, Portugal18.5°C
- 4Praia do SupertubosPeniche, Portugal18.5°C
- 5Praia do Cabedelo FigueiraFigueira da Foz, Portugal18.5°C
- 6Praia da ConsolacaoPeniche, Portugal18.4°C
- 7Praia do NorteNazaré, Portugal18.3°C
- 8Praia de Sao Martinho do PortoSao Martinho, Portugal18.3°C
- 9Praia da Foz do ArelhoFoz do Arelho, Portugal18.3°C
- 10Praia da FofaLourinha, Portugal18.3°C
- 11Praia dos NavegantesTorres Vedras, Portugal18.3°C
- 12Praia da VieiraMarinha Grande, Portugal18.3°C
- 13Praia de Sao JacintoAveiro, Portugal18.3°C
- 14Praia da EriceiraEriceira, Portugal18.3°C
- 15Praia de Salir do PortoSalir, Portugal18.0°C
- 16Praia da AssentaTorres Vedras, Portugal18.0°C
- 17Praia da Cova GalaFigueira da Foz, Portugal17.9°C
- 18Praia da VagueiraVagos, Portugal17.9°C
- 19Praia de Ribeira dIlhasEriceira, Portugal17.9°C
- 20Praia de Sao LourenoEriceira, Portugal17.9°C
- 21Praia dos CoxosEriceira, Portugal17.9°C
- 22Praia do Molhe LestePeniche, Portugal17.8°C
- 23Praia de Porto NovoTorres Vedras, Portugal17.8°C
- 24Praia de Sao Pedro MoelMarinha Grande, Portugal17.8°C
- 25Praia de Osso da BaleiaPombal, Portugal17.7°C
- 26Praia de PedrogaoLeiria, Portugal17.6°C
- 27Praia da Areia BrancaLourinha, Portugal17.5°C
- 28Praia de Santa CruzTorres Vedras, Portugal17.5°C
- 29Praia da BarraIlhavo, Portugal17.5°C
- 30Praia de PenichePeniche, Portugal17.4°C
- 31Praia do Guincho PenichePeniche, Portugal17.4°C
- 32Praia da Costa NovaIlhavo, Portugal17.4°C
- 33Praia de MiraMira, Portugal17.3°C
- 34Praia de BuarcosFigueira da Foz, Portugal17.3°C
Swimming in the Silver Coast — FAQ
How warm is the sea in the Silver Coast in November?
The Atlantic Ocean off the Silver Coast averages about 18.0°C in November, 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.