December in Encinitas averages a daily high of 18.1°C with nights around 8.6°C. Expect roughly 7.4 wet days totalling 44.6mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Encinitas is May–October.
Based on CARLSBAD MCCLELLAN PALOMAR AIRPORT, CA US (10.4km), 1995–2024. 26 years of December data.