Oceanside Harbor is located in the northernmost part of San Diego County. It's a chill spot for surfers and has a relaxed vibe. The harbor area offers decent access to the beach, with a mix of sandbars that shift and change. You'll find surfers hanging out at the north and south jetties, and both sides of the pier. While it can get a bit crowded, especially on good days, there are usually peaks up and down the beach to catch waves.

This place works well with south, south-southwest, and southwest swells, making it a popular spot when conditions are right. Wave sizes typically range from 2 feet (0.6 meters) to 8 feet (2.4 meters), providing options for surfers of all skill levels - from beginners to experts. You can score fun beach breaks, and the waves peel to the right and left, depending on the swell direction. The best waves happen at low to mid tide, and north-east to east-north-east winds generally make for cleaner conditions. On a good combo or tropical swell, the surf can get exceptional, though it can be average most days.

When you're heading out, keep in mind that the paddling can be pretty average on most days but may test you if the swells are strong. The harbor entrance can be tricky with boats around, especially during big sets. The local vibe here is proud but fairly tolerant, so it's generally a friendly spot to surf. Overall, Oceanside Harbor is a solid choice for a day in the water, especially when the swells align.