What is a surf report?
A surf report is a daily summary of wave height, swell period, wind direction and speed, tide stage, and water temperature for a specific beach. Surfers read it to decide whether to paddle out. Everyone else can read it to decide whether the ocean will be pleasant, rough, or unusable for the group. In Ocean City the key variables are wind direction, which decides whether waves are clean or blown out, and swell period, which separates gentle rollers from heavy surf.
Also called: surf forecast, swell report, surf conditions.
Reading the numbers without being a surfer
Wave height tells you how big it is. Swell period tells you how much power is behind it, and a three-foot wave at a long period carries far more than three feet of wind chop. A three-foot wave at a long period carries far more force than a three-foot wind chop. Offshore or light wind means cleaner, better organized surf, which is why surfers watch the wind forecast more closely than the wave height. Strong onshore wind means chop, poor visibility for guards, and a beach day that may work better with a book than a boogie board.
Water temperature is the other half
Mid-Atlantic water warms slowly. Early summer can be bracing, late summer and early fall are usually the warmest, and upwelling events can drop the temperature by ten degrees or more overnight with no warning from the air temperature. A wetsuit or rash guard extends the season at both ends, especially for children.
What a surf report cannot tell you
A report describes conditions, not local hazards. It will not show you today's rip channels, the shore break at your street end, or where the guards want swimmers. Use it the night before to set the plan and the guard on the stand to set the spot.
Turning a report into a plan
Small, clean, light wind
Choose it when: Good for swimming, lessons, and beginners.
Tradeoff: Uninteresting for experienced surfers.
Larger swell, longer period
Choose it when: Experienced surfers only; expect strong current.
Tradeoff: Poor swimming conditions for the rest of the group.
Strong onshore wind
Choose it when: Switch to bay, Boardwalk, or an indoor plan.
Tradeoff: A beach day nobody enjoys if you force it.
Current source: Ocean City Tourism surfing guide. Fees, hours, posted rules: all of it moves without much notice, so confirm anything time-sensitive on the day you go.