Mad River Beach (Humboldt County)
- Shortboard, Longboard
- Best for
- Intermediate to Advanced
- Skill Level
- Ocean, Swell
- Spot Type
- Quiet
- Crowd Level
This spot information is AI-assisted and has not been human verified. It may be incomplete, outdated, or incorrect. Verify safety, access, local rules, and current conditions with official or local sources before riding.
About
Mad River Beach is a fairly exposed beach break at the mouth of the Mad River. It’s known for being inconsistent and often not working, with no strong seasonal pattern; when it does line up, it can produce both left and right waves. The spot’s surf quality is highly dependent on tide and swell/wind alignment. High tide is the best tide, and working swell is typically from the west to northwest. Wind can make or break sessions: NW winds can quickly blow the beach break out, while lighter east offshore winds tend to be more favorable. Riders should expect shifting sandbars and short, fast rides rather than long, steady lines. Safety is the priority here. Hazards include sharks, rocks, and urchins, along with rip currents and strong currents near the river mouth. It’s critical to avoid the most dangerous river/creek-mouth areas and to stay well away from the mouths—at least 50 yards—especially after rain when bacterial levels near the river/creek mouths can be high. Conditions are remote and cold-water readiness matters. Water is typically around 10–13°C and often 10–14°C across the year, so thick wetsuits with proper head/hand/foot warmth are recommended. There are no lifeguards on site and rescue response is not immediate; plan to go prepared and self-sufficient.
- Exposed beach break near the Mad River mouth with both left and right waves.
- High tide is best.
- Wind can be decisive—NW winds may blow it out quickly.
- Unlikely to be crowded.
- Exposed beach break with potential for both left and right waves when conditions align.
- Best suited to surfers who are prepared for remote, rugged conditions.
- Typically unlikely to be crowded, even when surf is up.
- Very cold water year-round (around 10–13°C typical).
- Surf is inconsistent and can be blown out by prevailing winds.
- Hazards include sharks, rocks, urchins, rips, and dangerous river-mouth currents.
- Water quality can be cloudy/turbid near the river mouth, especially after rain.
Wind, water and seasons
Wind
- Direction
- NW, N, S
- Offshore directions
- E, ESE
- Wind Range
- 15–25 kts
- Wind Type
- Gradient — Gradient winds are common; conditions are often driven by NW flow and can be reinforced by regional patterns.
- Reliability
- inconsistent
- Gust Factor
- Moderate gusts
- Best Months
- March, April, May, June, July, August, September
- Shadow Zones
- Some shelter provided by dunes for beachgoers, but not for riders.
Water & beach
- Water Type
- Ocean, Swell
- Beach
- Sand
- Beach Size
- Big
- Waves
- Medium
- Launch
- Medium — Wide sandy beach with driftwood; access via beach access from unimproved parking just north of the county park (4WD/ATV usable to the river mouth).
- Launch Difficulty
- Easy — Access is generally straightforward from the beach area/parking; however, the river-mouth section is hazardous and can be difficult to manage safely.
Through the year
Generally uncrowded year-round due to consistency and hazards.
November to March
By sport
What to expect for each.
A fairly exposed and inconsistent beach break near the mouth of the Mad River. It does not work very often and can be affected by shifting sandbars and prevailing winds, so peaks may be short-lived.
- Wave Direction
- Both
- Optimal Swell
- W, WNW
- Swell Height
- 1–2.5 m
- Optimal Tide
- High
- Shelter
- Exposed
- Wind Effect
- Highly sensitive to NW winds; it can be blown out quickly. Works best with light offshore east winds.
- Bigger Swell
- On very large swells it can close out, and the river-mouth area can become extremely dangerous due to currents.
- Wave Quality
- Average
- Wave Power
- Moderate
- Wave Shape
- Mixed
- Peel Speed
- Medium
- Ride Length
- Short — Fast, short rides on shifting peaks.
- Typical Ride Length
- 30–80 m
- Ride Length Details
- Typical rides are short and can vary with shifting sandbars on the day.
Check the forecast before you go
See wind, waves, weather and session windows for Mad River Beach (Humboldt County) in the full forecast view.
Mad River Beach (Humboldt County) wind and wave forecast summary
- Wind
- 1–14 ktsGusts 27 kts
- Direction
- NNW338°
- Strongest day
- Fri, Oct 2314 kts
- Windy days
- 1/712 kts or more
- Waves
- 0.9–2.5 m9s period
- Temperature
- 5–15 °C
Over the next 7 days, Mad River Beach (Humboldt County) is forecast for daytime winds of 1–14 kts, peaking around 14 kts on Friday, October 23 with gusts to 27 kts. The prevailing direction is NNW. Waves run 0.9–2.5 m with a period of about 9s. Based on the Wavind model, in the spot’s local time.
Other spots in the area
What to know before you launch
Safety, access, restrictions, rescue, and local rules can change. Treat these details as informational and confirm them locally before launching.
Hazards
- Sharks
- Rips
- Rocks
- Urchins
- Strong river mouth currents
- Heavy driftwood
Rescue & support
- Rescue & Self-Rescue
- Limited — No on-site rescue base; regional maritime search and rescue response via the Coast Guard.
- Emergency Info
- Call 911 for Coast Guard assistance. Nearest medical facilities are in Arcata or Eureka.
Rules of the spot
Stay at least 50 yards from the Mad River, Strawberry Creek, and Little River mouths. Avoid ocean water within 50 yards of river/creek mouths; do not wade or swim in rivers/creeks. Avoid going in after rain when bacterial levels are high near the river/creek mouths.
- Avoid ocean water within 50 yards of river/creek mouths.
- Do not wade or swim in rivers/creeks.
- Stay at least 50 yards from river/creek mouths (Mad River, Strawberry Creek, Little River).
- Stay 50+ yards from the Mad River mouth, especially after rainstorms.
- Avoid the water near river/creek mouths due to high bacterial levels after rain.
- Expect short, shifting surf on the day you go; avoid the most dangerous river-mouth areas where currents and debris can be unpredictable.
Getting there & access
- Nearest City
- Eureka
- Nearest Town
- McKinleyville
- Parking
- Parking available at Mad River County Park (boat ramp); additional unimproved 4WD parking just north of the park for beach access.
- Access
- From Eureka, go north on US Hwy 101 for ~8 miles, take Giuntoli Lane exit, turn left onto Janes Road, right onto Heindon Road, left onto Miller Lane, right onto Mad River Road and continue 1.7 miles to Mad River County Park. An unimproved parking area just north of the park provides 4WD beach access to the river mouth.
- Local Language
- English
What's on the beach
- Accommodation
- Nearby town — Camping and vacation rentals available in McKinleyville and nearby Trinidad.
- Food & Drink
- No food on the beach; restaurants are located about 10 minutes away in McKinleyville.
- Equipment Rental:
- No rentals available at the beach; surf shops are located in Arcata and Eureka.
No schools or services are listed for this spot yet.
From riders who've been here
Latest reported conditions
Spot questions
Frequently asked questions
When is the best season at Mad River Beach (Humboldt County)?
The best overall months at Mad River Beach (Humboldt County) are March, April, May, June, July, August, September.
Which wind directions work at Mad River Beach (Humboldt County)?
Mad River Beach (Humboldt County) works with NW, N, S winds. Offshore directions are E, ESE.
What skill level is Mad River Beach (Humboldt County) suitable for?
Mad River Beach (Humboldt County) suits these riding levels: Surfing: Intermediate to Advanced.