Lagos Sea Temperature
Portugal · Forecast updated Jul 15, 2026, 06:24 UTC · refresh delayed
Current Sea Temperature
18.2°C
64.8°F
Cool water
Versus this month's average
1.1°C below
The July average in our archive is 19.3°C (66.7°F).
Recent trend
Cooling by 1.1°C
Seven-day average: 19.0°C, versus 20.1°C in the prior seven days.
What to wear
Cool water
A 3 mm shorty or full wetsuit will make longer snorkels more comfortable.
Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not mean the sea is safe.
Sea Surface Temperature Over the Year
In the data collected for Lagos, monthly averages range from about 18.0°C (64.5°F) in June to 19.3°C (66.7°F) in July.
Over the past 30 days, the average sea temperature in Lagos has been 19.1°C.
Monthly Water Temperature Averages
| Month | Min | Average | Max |
|---|---|---|---|
| June | 16.5°C / 61.7°F | 18.0°C / 64.5°F | 20.2°C / 68.4°F |
| July | 17.4°C / 63.3°F | 19.3°C / 66.7°F | 22.0°C / 71.6°F |
Profile calculated from 1071 hourly forecast records across 2 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Lagos
Algarve cliffs and grottoes with clear Atlantic coves around Ponta da Piedade.
- Area
- Algarve
Lagos Water Temperature — Common Questions
What is the sea temperature in Lagos today?
The current sea surface temperature in Lagos is 18.2°C. Over the last 30 days, the average has been 19.1°C.
When is the water warmest in Lagos?
The warmest monthly average in the Lagos archive is July, at around 19.3°C (66.7°F).
When is the water coldest in Lagos?
The coldest monthly average in the archive is June, at around 18.0°C (64.5°F). A wetsuit is usually recommended during this period.
Can you swim in Lagos today?
The water is 18.2°C — cool but manageable with a wetsuit or for short dips.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Lagos.
View Snorkel Forecast →