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When To Go · Destination Guide

San Diego and La Jolla

Kelp forests, canyon shore dives, and classic wrecks on Southern California's doorstep

Updated Dec 13, 2025 • 15 sources

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When To Go

Season planner for San Diego and La Jolla

San Diego diving is year-round, but conditions change by season. Late summer into early fall tends to be the warmest water window, while winter and early spring bring more storm-driven swell risk. Use marine forecasts and buoy data to decide between La Jolla shore sites and offshore wreck charters.

At A Glance Heatmap

ActivityJanFebMarAprMayJunJulAugSepOctNovDec
Overall
Scuba
Freedive
Snorkel
Topside

Activity Drilldowns

PrimeShoulderPlan Carefully
Overall
August - October·Crowd:High·Cost:Premium
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Ideal: Warmest water, better chances for calm mornings and comfortable surface intervals.

Plan Carefully: Colder water and higher chance of storm swell. Shore entries can be hazardous on big surf days.

Summer weekends are busy in La Jolla.

Scuba
September - November·Crowd:Moderate·Cost:Premium
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Ideal: Often a strong blend of warmer water and improving visibility after summer.

Plan Carefully: More swell exposure and colder water. Choose protected sites and be conservative with exits.

Wreck Alley is best on smaller swell days.

Freedive
July - October·Crowd:Moderate·Cost:Premium
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Ideal: Warmest water and more comfortable surface intervals. Good overlap with shark season in La Jolla.

Plan Carefully: Colder water and more winter swell. Shorten sessions and stay close to protected entries.

Freediving at canyon edges increases commitment.

Snorkel
July - September·Crowd:High·Cost:Premium
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Ideal: Warmest water and the peak window for leopard shark encounters near La Jolla.

Plan Carefully: Cooler water and more storm swell. Choose only very calm days and consider a guided tour.

Snorkel success depends on sea state.

Topside
March - May & September - November·Crowd:High·Cost:Premium
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Ideal: Comfortable hiking and city days with fewer extremes.

Plan Carefully: Peak crowds and higher prices, especially on weekends.

Late spring and early summer often bring morning coastal cloud cover.

Seasonal Callouts Timeline

  • Leopard shark aggregation off La Jolla

    JanJan
    FebFeb
    MarMar
    AprApr
    MayMay
    JunJun
    JulJul
    AugAug
    SepSep
    OctOct
    NovNov
    DecDec

    Between July and September, large numbers of leopard sharks gather in the shallow sand flats off La Jolla, creating one of the most reliable snorkel and freedive wildlife experiences in the area.

  • Gray whale migration

    JanJan
    FebFeb
    MarMar
    AprApr
    MayMay
    JunJun
    JulJul
    AugAug
    SepSep
    OctOct
    NovNov
    DecDec

    Gray whales migrate along the Southern California coast in winter and early spring. Shore viewpoints at Point Loma and organized whale-watching tours are common ways to see them.

  • California spiny lobster season

    JanJan
    FebFeb
    MarMar
    AprApr
    MayMay
    JunJun
    JulJul
    AugAug
    SepSep
    OctOct
    NovNov
    DecDec

    Recreational spiny lobster season runs from early October into mid-March (dates vary slightly year to year). MPAs in La Jolla prohibit take, so treat it as a food and culture season unless you are diving outside protected areas and fully licensed.