December is the start of high season in Sayulita. Here’s what the waves, the water and the town are like, from quiet early-December mornings to the busy holiday weeks.

Is the ocean in Sayulita clean enough to swim and surf? How the water is tested every month, what the results mean, and where to find the latest numbers.

Swell, wind and water temperature through the year, explained for beginners.

Waves, water temperature and crowds in peak season.