Reef
right
Level 6/10

Mavericks

Half Moon Bay, USA (CA)
⚠️Shallow🪨Rocks🪸Sharp reef

Mavericks is Northern California's big wave proving ground—a cold, shark-infested, boulder-strewn reef off Half Moon Bay that produces some of North America's most dangerous surf. The wave breaks over a submerged rock field, creating an unpredictable playing surface that has claimed lives. When winter storms send massive NW swells down the coast, Mavericks holds waves in the 40-60 foot range. The competition here has become one of big wave surfing's most prestigious events. Paddle-in purists still consider it the ultimate test.

3-Day Forecast
Today
15
15
Poor
1.9m
@20s
13km/h
Mon
16
15
Poor
1.4m
@18s
11km/h
Tue
17
15
Poor
1.2m
@17s
10km/h
+7
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Today's Conditions

Swell
1.9m
WNW(303°)
Score: 1/25
Period
20s
Long period groundswell
Score: 20/25
Wind
13km/h
NNW(330°)
Score: 5/25
Weather
16°C
0.0mm40%
Windswell Component
0.3mNNW@2s
Secondary Swell
0.4mSSW
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
morning

Location & Conditions

Loading map...
0°45°90°135°180°225°270°315°NESW
Swell
Wind
View in OpenStreetMap
Showing forecast for today

Tide Times

2:47 am
Low tide - -0.13m
8:35 am
High tide - 0.71m
3:40 pm
Low tide - -0.92m
10:09 pm
High tide - 0.45m
Times shown in spot-local time.

📊 Buoy ValidationCheck Buoy

Santa Maria

327 km away

Source: noaa

Forecast Validation
Buoy observed: 2.6m
Forecast error: ±0.7m

Strike Score Breakdown

15
Poor
Components
Swell Direction16/25
Swell Size1/25
Swell Period20/25
Wind5/25
Raw Score42/100
Adjustments
⚠️ Weak Component-5
🚫 Undersized Capmax 15
Adjusted Score37/100
Confidence
Multiplier×1.00
Final Score15
👥 Spring Break
📡Live buoy · Santa Maria buoy reads 2.6m (forecast 1.9m)

Spot Details

Swell Requirements

Optimal direction
WNW (290°)
Direction range
270° - 315°
Size range
7.6m - 18.3m
Ideal size
15.0m
Height multiplier
1.08×
Ideal period
18s+

Wind Requirements

Optimal direction
E (90°)
Offshore range
45° - 135°
Best window
morning

Tide Requirements

Optimal tide
low to mid

Difficulty

6/10

Crowd level

3/10

👥 Spring Break (Mar 14Mar 22) — expect extra crowds

Access: Paddle/jet ski

Getting There

Airport
SFO
Drive time
45 min
Data quality
community

Strike Log

Community Discussion