Playa de Monsul Sea Temperature
Updated Tue 11:06 (Europe/Madrid)
Spain · Forecast updated Aug 18, 2026, 11:06 UTC · refresh delayed
Current Sea Temperature
28.0°C
82.4°F
Very warm water
Versus this month's average
1.2°C above
The August average in our archive is 26.8°C (80.3°F).
Recent trend
Warming by 1.4°C
Seven-day average: 27.8°C, versus 26.4°C in the prior seven days.
What to wear
Very warm water
Swimwear is usually enough; a rash guard adds sun protection.
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 Playa de Monsul, monthly averages range from about 26.4°C (79.6°F) in July to 26.8°C (80.3°F) in August.
Over the past 30 days, the average sea temperature in Playa de Monsul has been 26.7°C.
Monthly Water Temperature Averages
Northern Hemisphere. Summer is generally June–August; winter is December–February.
| Month | Min | Average | Max |
|---|---|---|---|
| July | 24.9°C / 76.8°F | 26.4°C / 79.6°F | 28.3°C / 82.9°F |
| August | 24.4°C / 75.9°F | 26.8°C / 80.3°F | 28.5°C / 83.3°F |
Profile calculated from 1142 hourly forecast records across 2 monthly periods. This is a growing archive, not a long-term climate normal.
About the water at Playa de Monsul
Iconic volcanic cove southwest of San Jose with dark sand and rock features, best for snorkeling during calm low-wind windows.
- Area
- San Jose
Playa de Monsul Water Temperature: Common Questions
What is the sea temperature in Playa de Monsul today?
The current sea surface temperature in Playa de Monsul is 28.0°C. Over the last 30 days, the average has been 26.7°C.
When is the water warmest in Playa de Monsul?
The warmest monthly average in the Playa de Monsul archive is August, at around 26.8°C (80.3°F).
When is the water coldest in Playa de Monsul?
The coldest monthly average in the archive is July, at around 26.4°C (79.6°F).
Can you swim in Playa de Monsul today?
At 28.0°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 Playa de Monsul.
View Snorkel Forecast →