Eixample, Spain in December has mild conditions, with highs averaging 14.2°C (58°F) and noticeably cooler mornings. Sea temperature stays cool at 15.5°C (60°F).
This month falls at the beginning of Winter.
Temperatures remain fairly steady throughout December, with daily highs around 14°C (57°F).
Rainfall is heaviest during the first third of the month, while the last third tends to be drier.
The warmest days tend to fall around the 23th, averaging 14.8°C (59°F).