San Clemente Island
Why dive here
San Clemente Island is a dive in California, United States. Water ranges 14-21°C, warmest July, August, September.
San Clemente Island is one of those spots where you go for the experience as much as the diving itself. We usually hit it on a longer boat trip from the mainland, making it a proper day out. Underneath, it’s mostly kelp forests, the kind where you can just hang out and watch garibaldi darting in and out, or spot a curious harbor seal popping by for a look. It’s shallow, capping out at around 17 meters, which makes it a relaxed dive, perfect for newer divers or those who just want to chill amongst the swaying fronds. Visibility can swing, but when it's good, seeing the sunbeams filter through the kelp is pretty magic.
Typical San Clemente Island Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Always perform a 3-minute safety stop at 5m before surfacing.
Reviews for San Clemente Island
Conditions
Ocean conditions, forecast and tides for San Clemente Island
San Clemente Island Ocean Conditions
Monthly averages for San Clemente Island, sourced from NOAA NDBC buoy data - nearest station: Topanga Nearshore, CA (103) (221km away)
October Averages
Sea Temperature
19°C
66°F · Range: 14–23.7°C
Air Temperature
18°C
65°F
Wave Height
0.6m
13.8s period
Based on 4 years of monitoring data · Data sources: NOAA NDBC buoy data
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