Reef
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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.

10-Day Forecast
Today
21
4
Poor
1.4m
@10s
8km/h
Mon
22
2
Poor
1.6m
@8s
8km/h
Tue
23
0
Poor
1.2m
@11s
9km/h
Wed
24
0
Poor
1.3m
@15s
10km/h
Thu
25
0
Poor
1.8m
@10s
12km/h
Fri
26
0
Poor
2.0m
@7s
17km/h
Sat
27
0
Poor
1.8m
@12s
24km/h
Sun
28
0
Poor
2.7m
@10s
11km/h
Mon
29
1
Poor
2.6m
@11s
9km/h
Tue
30
13
Poor
2.2m
@12s
10km/h

Today's Conditions

Find Flights
Swell
1.4m
W(279°)
Score: 0/25
Period
10s
Medium period swell
Score: 1/25
Wind
8km/h
WSW(257°)
Score: 13/25
Weather
15°C
0.0mm99%
Secondary Swell
0.8mSSW
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
morning
AM: 3 km/h SSW|PM: 9 km/h W
3 km/h vs 9 km/h afternoon
Low tide at 10am (-0.7m)

Location & Conditions

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

Tide Times

4:05 am
High tide - 0.34m
10:37 am
Low tide - -0.73m
5:31 pm
High tide - 0.66m
Times shown in spot-local time.

Strike Score Breakdown

4
Poor
Components
Swell Direction17/25
Swell Size0/25
Swell Period1/25
Wind13/25
Raw Score31/100
Adjustments
⚠️ Weak Component-15
📉 Undersized Swell-12
🚫 Undersized Capmax 15
Adjusted Score4/100
Confidence
Multiplier×1.00
Final Score4
👥 Summer Break
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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°

Tide Requirements

Optimal tide
low to mid

Difficulty

6/10

Crowd level

3/10

👥 Summer Break (Jun 15Aug 25) — expect extra crowds

Access: Paddle/jet ski

Getting There

Airport
SFO
Drive time
45 min
Data quality
community

Strike Log

Community Discussion