San Onofre water temperature today

San Onofre, California

San Onofre water temperature today is 53°F. Is it cold? It's cold for most people, so plan on a 5/4mm fullsuit.

Water temperature refreshed hourly from a latitude-based estimate.

Pack the right rubber and you'll extend your sessions in San Onofre by an hour. Temps swing from upwelling lows to summer peaks, and the difference between a 3/2 and a 4/3 day can come overnight.

53°F
5/4mm fullsuit

Heavy-duty suit with accessories required

Recommended extras: booties, gloves, hood optional

7-Day Temperature Trend

Data from Lower Trestles · Updated hourly

Beach Water Temperatures

Current water temperatures at each surf spot. Temperatures can vary based on local conditions, currents, and depth.

Surf spots in San Onofre

Spot guide for San Onofre

Break types, ratings, and local tips for each beach.

Lower Trestles
reef
intermediate
4.2(11)

**Lower Trestles** stands as California's proving ground for progressive surfing, rated 9/10 for wave quality.

Middles
beach
beginner-intermediate
3.9(15)

Middles is a beach break in San Onofre, CA. It is suited for beginner-intermediate surfers. Watch out for rip currents, pollution.

Trails
beach
beginner-intermediate
3.9(15)

Trails is a beach break in San Onofre, CA. It is suited for beginner-intermediate surfers. Watch out for rip currents, pollution.

Upper Trestles
point
intermediate
3.9(17)

**Upper Trestles** offers high-performance cobblestone rights, rated 8/10, working best on west to northwest swells (240-315°, center 280°).

What to know about water temperature

  • Weekly temperature trends and seasonal averages
  • Gear recommendations for dawn patrol versus midday
  • Upwelling signals that drop temps overnight
  • Health and recovery tips for long cold sessions

Surf Guides for San Onofre

Frequently Asked Questions

About surfing in San Onofre

San Onofre water is 53°F today, which is cold for most people, so most surfers wear a 5/4mm fullsuit. Wind, air temperature, and session length change how cold it feels.
San Onofre water is 53°F today. Readings differ from beach to beach and through the day, so check the per-beach temperatures on this page before you go.
Water temperatures in San Onofre typically range from 55-72°F. For summer, spring suit or 3/2mm is recommended. In winter, you'll want 4/3mm. Spring and fall may require adjusting based on your cold tolerance.
Water temperatures in San Onofre range from 55-72°F, so most surfers wear at least spring suit or 3/2mm even in summer. A wetsuit is recommended year-round for longer sessions and early morning surfs.