Catalina Island - California

Catalina Island, just a short boat ride from the California coast, offers a pretty accessible dive for those looking to get wet. You'll find yourself cruising through kelp forests, the sunlight dappling down through the fronds, where bright orange garibaldi dart between the stalks. The max depth of 15m makes it a good spot for newer divers or those who just want a relaxed day underwater. We’ve found it’s best when the currents are mild, allowing you to really soak in the peaceful sway of the kelp.

Location
California, United States, North America
Coordinates
33.379200, -118.420200
Maximum Depth
15m
Difficulty
Beginner

Marine Protected Area: Long Point (Catalina Island) State Marine Reserve

Best Time to Dive in California

The warmest water temperatures in California occur in August, averaging 20.6°C (up to 24.0°C). The coolest conditions are in February at 14.0°C.

The calmest sea conditions are typically in July with average wave heights of 0.60m.

Monthly Water Temperatures

  • January: 14.4°C (air: 14.0°C)
  • February: 14.0°C (air: 13.8°C)
  • March: 14.2°C (air: 13.3°C)
  • April: 14.9°C (air: 14.3°C)
  • May: 16.6°C (air: 15.4°C)
  • June: 18.9°C (air: 17.4°C)
  • July: 20.4°C (air: 18.9°C)
  • August: 20.6°C (air: 19.6°C)
  • September: 20.4°C (air: 19.7°C)
  • October: 18.8°C (air: 18.4°C)
  • November: 16.3°C (air: 16.0°C)
  • December: 15.6°C (air: 14.3°C)

Nearby Dive Sites in California

Nearest Dive Centres to Catalina Island

Marine Life in California

Home to 10 recorded species including 8 reef fish, 1 other, 1 octopus & squid.

Notable Species

Recommended Packing List for Catalina Island

Based on average water temperature of 17.1°C.

  • Wetsuit (5-7mm) - recommended for 17°C water
  • Hood & Gloves (3-5mm) - helps retain warmth
  • Mask - essential for every dive
  • Fins
  • BCD - buoyancy compensator
  • Regulator - your most safety-critical piece of gear
  • Dive Computer - tracks depth, time, and NDL
  • Surface Marker Buoy (SMB) - essential for boat pickups
  • Dive Torch - useful for crevices and colour at depth
  • Underwater Camera - capture your diving memories

Frequently Asked Questions

What are the typical depths for scuba diving at Catalina Island dive sites?
At Catalina Island, typical depths for scuba diving are around 15 meters. This depth makes it an excellent location for divers of various experience levels, including beginners.
What kind of marine life and underwater environments can divers expect to see in Catalina Island's waters?
Divers exploring Catalina Island's waters can expect to encounter vibrant reef environments. These underwater landscapes provide a rich habitat for various marine species. For more information on marine life, visit our wildlife database.
How challenging is the diving at Catalina Island, and are there suitable spots for beginner divers?
Diving at Catalina Island is considered suitable for beginners. Its accessible conditions make it an ideal destination for those new to scuba diving or looking for relaxed dives.
When is the best time of year to go scuba diving at Catalina Island for optimal conditions?
The provided data does not specify the best time of year for optimal diving conditions at Catalina Island. For general guidance on seasonal diving, please refer to our When to Dive section.
What scuba diving certifications are needed to dive around Catalina Island?
While the specific certification requirements for diving around Catalina Island are not detailed in the provided information, its beginner difficulty suggests that an Open Water Diver certification or equivalent would generally be sufficient. Always confirm with local dive operators for their specific requirements.
What are the general water conditions, including visibility and currents, like for diving in Catalina Island?
The provided data does not include specific details regarding the general water conditions, such as visibility and currents, for diving at Catalina Island. Divers should consult local dive centers for up-to-date conditions before planning their dives.