Now that I am back in La Palma and have access to my observatory I can check the log book.
It appears that useful observations were made on 43 nights. More were undoubtedly clear, at least in part and some quite probably after I had given up waiting for the clouds to clear earlier in the night.
Bear in mind that I live in LP for less than half the year. In 2023 only 141 days were spent here and six of those were spent traveling.
As one might expect the evening I arrived here, 2024-01-11, was clear but I was exhausted after a trip which began at 02:00 that morning. The sky has been cloudy ever since.