San Diego
Scuba Diving Guide

Everything you need to know before scuba diving in San Diego

San Diego Scuba Diving

Main Diving Areas

When to Go

Diveable Months: Year-round
Best Conditions: Fall & Winter

Access

Boat Diving: All dive sites
Shore Diving: La Jolla only

Cost

Boat Diving: avg. $170 - $350
Shore Diving: free - $180

Visibility

Average: 15 to 30 ft
Best: 50 ft - 100 ft

Surface Water Temp

Imperial: 58° to 70°F
Metric: 14° to 21°C

Bottom Water Temp

Imperial: 48° to 65°F
Metric: 8° to 18°C

Exposure Protection

Mandatory: 7mm wetsuit or drysuit
Recommended: Hood, booties, gloves

Marine Life

Red gorgonian, strawberry anemones
Sevengill, horn, swell, & angel sharks
Stingray, bat ray, guitarfish
Yellowtail, lingcod, halibut
Halfmoon, blacksmith
Garibaldi, sheephead
California spiny lobster
Giant spinned sea star
Sea lion, harbor seal
Giant sea bass
Nudibranch

Boat Diving

Waterhorse Charters (us!) ⭐️
Marissa Charters

All in one Mission Bay shop
Check-in, rental gear fitting, boat boarding

What to expect

San Diego scuba diving packs the whole punch of cold-water diving:

  • Kelp Forests: richer at Point Loma area, but also found in La Jolla
  • Canyons & Walls: prime spots are Scripps Canyon & Train Wheels
  • Wreck Diving: famous underwater collection at Wreck Alley
  • Sea Lion Diving: a day trip to Coronado Islands' local rookery
  • Specialty Diving: lobster, night, and shark diving are possible here
YouTube video

Dive conditions

Visibility changes hourly, from site to site. These are San Diego scuba diving averages:

  • Average: 15 to 30 ft
  • Best: 50 ft+ locally & 100 ft+ at the Coronado Islands (fall & winter)
  • Worst: 5 ft (usually during algae blooms)*

Surface temperatures vary with the seasons and range between:

  • May - October: 62° to 70°F
  • November - April: 58° to 61°F

Bottom temperatures don't ever get too high and range between:

  • May - October: 56° to 65°F
  • November - April: 48° to 55°F
san-diego-scuba-diving-exposure-protection

Brave birthday diver ventures out at the Coronado Islands without a wetsuit (Photo by Jon Schmitt)

san-diego-scuba-diving

Photo by Jon Schmitt

Coronado Islands, a day trip to Mexico away, tend to have 1 to 3°F higher surface and bottom temperatures. Every bit counts!

San Diego waters are nutrient-rich, which helps kelp forests and cold-water species like sea lions and some shark species to flourish.

Dive conditions here change hourly. We keep a running Conditions Report spreadsheet to better forecast future visibility for our boat charters.

Gear requirements

If you plan to scuba dive in San Diego, exposure protection is a must. 

An extra layer of neoprene is always helpful when diving in San Diego, which is why we recommend full 7mm wetsuits with hood, booties, and gloves.

If you are certified and comfortable with it, a drysuit is not a bad idea for an even-warmer dive.

✨ LOCAL TIP: Ocean Enterprises, Beyond Land Adventures, and San Diego Divers are some of the San Diego dive shops that rent drysuits (in select sizes), but only if you are certified for it.

Accessing dive sites

You can dive La Jolla Cove and La Jolla Shores by shore, but you'll need a private or commercial boat to access any other dive site in San Diego. 

Waterhorse Charters - us - and Marissa Charters have the only United States Coast Guard inspected commercial dive boats in town.

san-diego-dive-boat

Photo by Phil Colla

la-jolla-shore-diving

Shore diving in La Jolla is a strenuous, yet rewarding physical activity

Tanks and weights included
Closest commercial dock to the ocean

Main San Diego dive sites

The San Diego scuba diving map and list below includes our favorite dive sites from La Jolla, Wreck Alley, Point Loma, and Coronado Islands. Although not all of San Diego dive sites are represented here, these are the main local recreational dive sites.

Darker icons represent advanced sites (over 60 ft) and brighter icons represent open water dive sites (under 60 ft).

Scripps Canyon

  • Max. Depth: 130 ft+
  • Level: Advanced
  • Formation: Canyon
  • Highlight: Deep Walls

La Jolla Pinnacles

  • Max. Depth: 90 ft
  • Level: Advanced
  • Formation: Rocky Pinnacle
  • Highlight: Nudibranchs

La Jolla Shores

  • Max. Depth: 130 ft+
  • Level: Open Water, Advanced
  • Formation: Sand, Canyon
  • Highlight: Night Diving

La Jolla Cove & Reefs

  • Max. Depth: 50 ft
  • Level: Open Water
  • Formation: Kelp Forest
  • Highlight: Shore Diving

HMCS Yukon

  • Max. Depth: 100 ft
  • Level: Advanced
  • Formation: Wreck
  • Highlight: large size (366 ft)

NOSC Tower

  • Max. Depth: 60 ft
  • Level: Open Water
  • Formation: Wreck
  • Highlight: Mini 'Oil-Rig'

Ruby E.

  • Max. Depth: 80 ft
  • Level: Advanced
  • Formation: Wreck
  • Highlight: Colorful Anemone

Old Ingraham St. Bridge

  • Max. Depth: 70 ft
  • Level: Advanced
  • Formation: Wreck
  • Highlight: Bridge Rubbles

El Rey

  • Max. Depth: 80 ft
  • Level: Advanced
  • Formation: Wreck
  • Highlight: Kelp Harvester

6 Fathoms

  • Max. Depth: 60 ft
  • Level: Open Water
  • Formation: Kelp Forest
  • Highlight: Sevengill Sharks

New Hope Rock

  • Depth: 35 ft
  • Level: Open Water
  • Formation: Kelp Forest
  • Highlight: Shallow Reef

Horsehead Reef

  • Max. Depth: 60 ft
  • Level: Open Water
  • Formation: Kelp Forest
  • Highlight: Walls

Dino Head

  • Max. Depth: 100 ft
  • Level: Advanced
  • Formation: Kelp Forest, Cliffs
  • Highlight: Dinosaur Rock

Train Wheels

  • Max. Depth: 100 ft
  • Level: Advanced
  • Formation: Kelp Forest, Cliffs
  • Highlight: Wrecked Wheels

Lobster Shack

  • Max. Depth: 60 ft+
  • Level: Open Water
  • Formation: Rocky Reef
  • Highlight: Sea Lions

Middle Grounds

  • Max. Depth: 60 ft+
  • Level: Open Water
  • Formation: Rocky Reef
  • Highlight: Archway

Keyhole

  • Max. Depth: 60 ft
  • Level: Open Water
  • Formation: Rocky Reef
  • Highlight: Rocky 'Fingers'

✨ LOCAL TIP: We didn't include Mission Bay as a main San Diego dive area because ocean conditions always triumph. Despite poor average visibility, Mission Bay is often used for scuba courses and lobster diving.

Tanks and weights included
Closest commercial dock to the ocean

Shark diving

Here is what you need to know about shark diving in San Diego:

  • Common Species: horn sharks, leopard sharks, sevengill sharks
  • Rare Species: swell sharks, tope sharks, smooth-hound sharks
  • Rarest Species: great white sharks, blue sharks, mako sharks, thresher sharks
  • Cage Diving: there is no great white shark cage diving in San Diego, but charters leave from San Diego to Mexican Guadalupe Islands
  • Dangers: Shark attacks are incredibly rare in San Diego, specially for scuba divers
  • Season: scuba diving in the Kelp Forests for sevengill sharks (spring), snorkeling at La Jolla Shores for leopard sharks (summer), looking under rocks and inside crevices on most dive sites for horn and swell sharks (year-round)

If you're interested in shark diving, see our San Diego Shark Diving guide.

san-diego-shark-diving

Photo by Charles Hobson

shark-diving-san-diego

Photo by Charles Hobson

Lobster diving

Here is what you need to know about lobster diving in San Diego:

  • Season: October through March (specific dates here)
  • Required Gear: Lobster game bag, gauge, dive light
  • Lobster Limit: Seven lobsters per person, per dive
  • Licenses: Lobster Report Card and Fishing License (buy them here)
  • Legal Size: 3 ¼ inch carapace (measured like this)
  • Location: Anywhere you don't see red (or some blue) on this map
  • Best Spots: Point Loma Kelp Beds & Mission Bay
lobster-diving-san-diego

Photo by Michael Wimmer

California Spiny Lobster

Photo by Michael Wimmer

Night diving

Here is what you need to know about night diving in San Diego:

  • Season: year-round
  • Gear: dive light, SMB, reel
  • Species: shrimps, octupus, crabs, horn sharks, guitar fishes, halibuts
  • Best Spots: Mission Bay & La Jolla Shores (from shore), Scripps Canyon & HMCS Yukon (by boat)

San Diego Dive Shops

Waterhorse Charters

Ocean Enterprises

  • Dive Shop
  • Dive Courses
  • Dive Travel
  • Guided Shore Diving

Beyond Land Adventures

  • Dive Shop
  • Dive Courses
  • Dive Travel
  • Guided Shore Diving

Zach Scuba Shack

  • Scuba Courses
  • Guided Shore Dives

North County Scuba Center

  • Dive Shop
  • Dive Courses

San Diego Divers

  • Dive Shop
  • Dive Courses

Scuba San Diego

  • Scuba Courses
  • Guided Shore Dives

House of Scuba

  • Dive Shop
  • Dive Courses
  • Dive Travel

Marissa Charters

  • Boat Diving

Odyssea by Fletcher

  • Dive Courses
  • Boat Diving (6-pack)
  • Guided Shore Diving

San Diego Scuba Guide

  • Scuba Courses
  • Guided Shore Dives

La Jolla Dive

  • Scuba Courses
  • Guided Shore Dives

scuba diver girls

  • Guided Shore Dives

Weekly trips on two dive boats
Friendly crew and creature comforts

JANET MARIE ORTIZ
JANET MARIE ORTIZ
Long overdue review! My boyfriend and I were in town and booked Waterhorse Charters for a private scuba lesson for him, since he recently got certified and wanted more practice and wanted to feel more confidence. I was also looking to do more freediving and breathwork training, and from the very beginning Karina was amazing! She walked me through our options, answered my 101 questions, and was super accommodating to what we both wanted to do. Everything felt easy and well-organized. My boyfriend’s instructor, Brandon Wiese, was patient, knowledgeable, and really helped him feel more comfortable scuba diving, which helped him be a better diver. My freediving instructor (the blonde fella!) was awesome! He helped me with my breathing and I was able to master the duck dive. I loved that he’s an active freediver/spearfishing and with his help, i was able to beat my own record in static apnea!! Overall, such an amazing experience- Thanks guys!
Josh Lee
Josh Lee
10000% worth the time. Friendly, helpful, and knowledgeable staff. Would go again!!
M. Smith
M. Smith
As always Waterhorse works to maintain a loyal customer base. They do it by providing a consistent, reliable and safe service. They have always given a bit "extra". Taking a moment on the way to/from the dive site to observe breaching whales was that "extra" this trip. Great job guys!
Tony Drake
Tony Drake
Amazing crew, great energy
Chris Curl
Chris Curl
Captain Brandon and crew were very friendly, helpful and professional. This is the second dive trip we’ve done with Waterhorse and both were great experiences.
Shawn Gustaw
Shawn Gustaw
These guys rock. I'm sure there are other good shops in San Diego but if we're down that way we'll definitely be booking with Waterhorse again. We had booked the Coronado Islands trip back in October but it got cancelled due to weather so we went on a local trip with them and still had a blast. Got some amazing pictures of nudibranchs on that trip which was super cool because we don't have that many up in the LA area. They recently opened up another Coronado Islands trip and we jumped at the opportunity and we were super happy we did. Diving with the sea lions was such a surreal experience, and Zach, Brandon + crew were as always super helpful and friendly. The absolute best way to celebrate your birthday :). Whenever we get around to doing the Yukon, we'll be back. See ya guys then!
michael filippini
michael filippini
I love this vendor, simply the best and friendliest crew and ship that takes you to local tours. I'm always happy when I use water horse charters. I do feel; however, as it was mentioned on the lobster trip on Sunday 11/23/25 that Zack should consider a night trip to point loma kelp beds as it is a great spot for lobster!
Matt Nachtigal
Matt Nachtigal
We had such an amazing time diving the HMCS Yukon. The crew and guides were awesome and made the whole experience unforgettable. They gave a really clear safety briefing before the dive so we always felt safe and well taken care of. Underwater, the guides pointed out so many cool creatures we probably would have missed on our own. The wreck itself was incredible, and the entire trip ran so smoothly. The hot soup and hot shower on the boat after diving were an absolute game changer. Highly recommend diving the Yukon with this crew. We can’t wait to go again!