Porto Santo Sea Temperature
Updated Mon 20:17 (Atlantic/Madeira)
Portugal · Forecast updated Aug 10, 2026, 20:17 UTC
Current Sea Temperature
25.0°C
77.0°F
Warm water
Versus this month's average
0.5°C above
The August average in our archive is 24.5°C (76.1°F).
Recent trend
Warming by 1.4°C
Seven-day average: 24.6°C, versus 23.3°C in the prior seven days.
What to wear
Warm water
Most people are comfortable in swimwear or a light rash guard.
Cold tolerance varies. Wind, session length, sunshine, and exertion also affect comfort; temperature alone does not describe sea conditions.
Sea Surface Temperature Over the Year
In the data collected for Porto Santo, monthly averages range from about 20.9°C (69.6°F) in June to 24.5°C (76.1°F) in August.
Over the past 30 days, the average sea temperature in Porto Santo has been 23.5°C.
Monthly Water Temperature Averages
| Month | Min | Average | Max |
|---|---|---|---|
| June | 19.6°C / 67.3°F | 20.9°C / 69.6°F | 22.7°C / 72.9°F |
| July | 21.6°C / 70.9°F | 22.9°C / 73.3°F | 24.0°C / 75.2°F |
| August | 23.1°C / 73.6°F | 24.5°C / 76.1°F | 25.4°C / 77.7°F |
Profile calculated from 1708 hourly forecast records across 3 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Porto Santo
Golden-sand island near Madeira with calm, clear Atlantic shallows.
- Area
- Madeira
Porto Santo Water Temperature: Common Questions
What is the sea temperature in Porto Santo today?
The current sea surface temperature in Porto Santo is 25.0°C. Over the last 30 days, the average has been 23.5°C.
When is the water warmest in Porto Santo?
The warmest monthly average in the Porto Santo archive is August, at around 24.5°C (76.1°F).
When is the water coldest in Porto Santo?
The coldest monthly average in the archive is June, at around 20.9°C (69.6°F).
Can you swim in Porto Santo today?
At 25.0°C, the water is usually comfortable for swimming and snorkeling.
Full Snorkeling Forecast
See how today's sea temperature, wave height, wind, and tides combine into a detailed snorkeling score for Porto Santo.
View Snorkel Forecast →