Spring surfing in San Diego is a study in transition. Spring surf windows in San Diego aren’t defined by a single swell source or a predictable weather pattern — they’re characterized by the interplay of dying winter energy and building summer energy, variable wind, and water slowly warming from its winter nadir. Knowing how to read this transition unlocks some excellent and relatively uncrowded surf from March through May.
March: The Winter Hangover
March in San Diego is still winter surf territory. The North Pacific storm track hasn’t shut down yet, and major NW groundswells can arrive through the first half of the month with winter-caliber power.
What to expect in March:
- NW swells of 3–6 feet continue, though with decreasing frequency compared to January–February
- Water temperature: 59–62°F — 4/3mm wetsuit territory
- Wind is variable but Santa Ana events become rarer
- Dawn patrol remains the best strategy for clean conditions
- Crowds remain thinner than summer — a solid March NW swell day at Cardiff can be genuinely quality and manageable
Best March strategy: Monitor the 7-10 day forecast for NW groundswell events. When a 4+ foot, 14-second NW swell appears in the forecast for late March, treat it like a late-season gift. Blacks, Cardiff, and Windansea will fire. These may be the last powerful NW groundswells until October.
Transition signs to watch: By mid-to-late March, the dominant swell period in the forecast starts shortening. NW swells at 16 seconds give way to NW swells at 12 seconds, then west swells at 10–11 seconds. The character of the surf changes — less powerful, more variable.
April: The Mixed Bag Month
April is the least predictable month for San Diego spring surf. The winter swell machine has effectively shut down, and summer hasn’t started. The ocean is often dominated by:
- West and NW swells at 8–12 seconds (moderate quality)
- Occasional brief S or SW swell pulses from early Southern Hemi activity
- Variable, frequently onshore afternoon wind
- Water temperature: 60–63°F
April can produce genuinely great days — a well-timed west swell with light morning wind at OB Pier or Cardiff is excellent spring surfing. But it can also produce a week of small, messy 2-foot wind swell that doesn’t reward the drive.
Best April strategy: Be opportunistic. Check the conditions score in the Element app daily. April’s best days tend to be brief — a west or NW swell arrives, produces one or two good mornings of surf, then fades before the next event. You can’t predict the whole month but you can capitalize on each good window.
Watch for: Late April “sneak swells” — occasional 3–4 foot, 14-second NW pulses that forecast models don’t always catch far in advance. When the Torrey Pines Outer buoy reading jumps unexpectedly, head to Cardiff or Blacks.
May: The First South Swells of Summer
May is when spring surf in San Diego starts getting interesting again. The first real Southern Hemi swells of the year begin arriving, typically in the second or third week of May. These are 3–4 foot events at 15–18 seconds from 180°–200° — small by summer standards but long-period and well-organized.
What these early May south swells produce:
- Tourmaline comes alive. The first proper swell of the season at Tourmaline Surf Park after months of NW-only conditions is celebrated among the longboard crew.
- Mission Beach produces fun, manageable beach break peaks
- Del Mar Rivermouth starts to wake up
- The overall vibe shifts — summer feels close
Water temperature in May reaches 62–65°F — a 3/2mm wetsuit is the comfortable standard.
May also brings June Gloom precursors. Marine layer mornings can suppress the sea breeze and create longer quality windows in the morning. More on this in the June Gloom guide.
Spring Surf Spots by Month
March: Blacks Beach, Cardiff Reef, Windansea. NW swell-dependent, dawn patrol required.
April: OB Pier, Del Mar Rivermouth, Cardiff on west swells. Flexibility matters — the best break on any day in April is the one that happens to have a functional swell.
May: Tourmaline, Mission Beach, La Jolla Shores. S swell season begins. Also watch for late NW events at Cardiff.
Spring Wetsuit and Gear Adjustments
Spring is a gradual transition in wetsuit requirements:
- March: 4/3mm or 3/2mm. Cold-running surfers keep the 4/3mm through March.
- April: 3/2mm is comfortable. Some warm days may allow a springsuit by late afternoon.
- May: 3/2mm standard. Some surfers transition to springsuit in late May as water approaches 65°F.
Spring is also a good time for surfboard transitions. As NW swell power decreases and south swells bring smaller, more manageable waves, consider moving from your winter step-up or high-volume board to a more standard performance shape for the beach breaks and points.
Using the Element App for Spring Session Planning
Spring is the season where the conditions score in the Element app is most valuable — because conditions are most variable. Unlike summer (consistent S swells) or winter (consistent NW swells), spring has no predictable pattern. The only reliable source of truth is real-time data.
Check the Element app every evening. Set notifications for your home break. When the conditions score spikes during spring, the window is often brief. The prepared surfer who acts on the alert will score some of the least-crowded, most pleasant sessions of the year at San Diego’s best breaks.