Encinitas weddings are quieter than the ones further south, and more often garden led. San Diego Botanic Garden, a private yard in Leucadia, a lawn above Moonlight Beach. Guest counts sit smaller, dress codes sit looser, and the whole day tends to run at the pace of the town, which is to say unhurried. Couples who choose Encinitas usually live here or spent a decade of weekends here.
The gardens change what the ceremony can be. Under mature trees you get shade, so a two o'clock ceremony is survivable in August in a way it is not on an open lawn. You also get shade in the photographs, which favours a later start anyway. Spring is the strongest season here, roughly March through May, when everything is in flower and the marine layer has not yet settled into its June pattern.
On the coast, the bluff sites are beautiful and awkward. Swami's and the surrounding bluffs involve stairs, and a lot of them, which rules them out for older guests. Moonlight Beach is easier to reach and busier with the public. Beach and park ceremonies in Encinitas need a city permit, and the current rules on numbers, chairs and amplified sound are worth confirming before you plan the layout.
Coast Highway 101 through Leucadia is the other thing to plan around. It is one lane each way through the middle of town, and on a Saturday in summer it backs up from the Encinitas Boulevard lights to Moonlight and beyond. Guests coming down from Carlsbad should take the freeway to Encinitas Boulevard rather than the coast road, however scenic it looks on a map. Tell them that in writing, because most of them will not think to ask.