Seawater temperature monitoring along the Cantabrian coast, sampled while surfing. Data compared against the historical record at Sardinero beach, Santander (1970–1978).
All recorded measurements coloured by temperature anomaly vs the 1970–78 reference. Use the month filter to explore seasonality.
Temperature observations over time, with a smoothed trend per year.
Observations against the 1970–1978 seasonal cycle: IQR band (light blue), median (blue), year trend (coloured curve), points coloured by anomaly.