[spaghetti]

Azapa it's not normal to find such cool water. It may happen, because the area is exposed to Mistral winds lasting 3 to 5 days (never less), and they always bring on a high thermocline for tow or three days after.
But you haven't been lucky to say the least. The average water temp in may is 18°c along the 24 hours (warnmer du4ing the day). In July the average water temp is 24 degrees much warmer in sunny hours).