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Level 10/10

Avalanche

North Shore, Oahu, USA
😮‍💨Hold-downs🏝️Remote

Avalanche is a deepwater outer reef near Haleiwa that handles massive swells when the nearshore breaks max out. It offers big wave left-handers in relatively deep water.

Avalanche surf forecast

Model forecast for swell, wind and tide.

10-Day Forecast
Today23
0
Poor
0.9m@11s
21km/h
Thu24
0
Poor
0.8m@9s
23km/h
Fri25
0
Poor
0.7m@9s
27km/h
Sat26
0
Poor
0.8m@10s
38km/h
Sun27
0
Poor
1.7m@9s
29km/h
Mon28
0
Poor
1.3m@10s
18km/h
Tue29
0
Poor
0.8m@11s
6km/h
Wed30
0
Poor
0.9m@12s
13km/h
Thu1
0
Poor
1.0m@12s
11km/h
Fri2
0
Poor
1.0m@11s
8km/h
Groomed 5+ days out, less certain

Today's Conditions

Find Flights
Best session: MorningAM 20 km/h · PM 21 km/h
Swell
0.9m
SW(235°)
Score: 0/25
Period
11s
Medium period swell
Score: 2/25
Wind
21km/h
ENE(70°)
Score: 1/25
Weather
28°C
0.1mm95%
First light 5:51amSunrise 6:21amSunset 6:27pmLast light 6:57pm
Windswell0.7m@3sSecondary0.5mConfidence
100%

Location & Conditions

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

Hourly Forecast, Tide & Strike Windows

6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
°C
25°
28°
30°
28°
26°
23°
25°
28°
29°
26°
24°
26°
27°
27°
26°
25°
25°
26°
25°
25°
25°
25°
26°
26°
25°
25°
27°
29°
28°
27°
25°
26°
28°
28°
25°
25°
26°
28°
29°
26°
24°
26°
28°
28°
25°
23°
25°
28°
28°
25°
2m1.0
sec
10s
11s
10s
11s
11s
8s
8s
10s
11s
9s
9s
10s
8s
9s
8s
8s
8s
11s
11s
10s
10s
9s
9s
10s
9s
10s
10s
10s
10s
12s
10s
11s
11s
10s
11s
12s
13s
13s
12s
12s
12s
12s
12s
12s
12s
12s
11s
11s
11s
11s
swell
windkm/h
19g39
21g48
22g53
22g53
20g48
18g36
20g42
26g60
26g62
22g54
25g50
23g53
29g65
28g65
30g62
35g72
39g81
37g80
39g90
40g88
34g71
31g71
29g72
26g70
27g59
22g50
19g49
22g53
15g49
13g34
6g21
5g18
6g22
7g25
7g24
7g17
10g22
15g36
17g45
14g44
8g19
9g22
12g33
13g39
12g36
6g16
2g18
10g29
14g36
9g37
tidem
1:30am0.3m
6:30am0.2m
1:21pm0.7m
8:18pm0.2m
1:50am0.4m
7:30am0.2m
1:54pm0.6m
8:30pm0.1m
2:20am0.5m
8:10am0.2m
2:12pm0.6m
8:40pm0.1m
3:00am0.6m
9:00am0.2m
2:40pm0.6m
8:55pm0.1m
3:30am0.7m
9:54am0.2m
3:00pm0.5m
9:30pm0.1m
4:15am0.6m
10:42am0.2m
3:18pm0.4m
9:40pm0.0m
4:54am0.6m
12:00pm0.2m
3:30pm0.3m
9:54pm0.0m
6:00am0.6m
2:30pm0.3m
10:30pm0.0m
7:06am0.6m
8:30am0.6m
Night

Tide times today

1:30 am
High tide - 0.35m
6:30 am
Low tide - 0.17m
1:21 pm
High tide - 0.65m
8:18 pm
Low tide - 0.16m
Times shown in spot-local time.

Strike Score Breakdown

0
Poor
Components
Swell Direction0/25
Swell Size0/25
Swell Period2/25
Wind1/25
Raw Score3/100
Adjustments
Wind History-1
🌊💨 Windswell-5
💨 Gusty Wind-5
⚠️ Weak Component-15
📉 Undersized Swell-11
⚖️ Penalty Stack Cap+11
🚫 Undersized Capmax 15
Adjusted Score0/100
Confidence
Multiplier×1.00
Final Score0
🌊💨 Windswell

Plan Your Strike

Return flights to HNL, departing today with a 5-day trip window.

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Swell Requirements

Optimal direction
NW (315°)
Direction range
290° - 345°
Size range
4.6m - 9.1m
Ideal size
5.9m - 7.3m
Height multiplier
1.08×
Ideal period
18s+

Wind Requirements

Optimal direction
SE (135°)
Offshore range
90° - 180°

Tide Requirements

Optimal tide
all

Water temp

25°C

Wetsuit

Boardshorts / Rashguard

Bottom

Reef

Max wave face

12m+

Board

Gun / Step-up

Consistency

2/10

Difficulty

10/10

Crowd level

2/10

Access: Paddle or tow-in from Haleiwa area.

Frequently Asked Questions

What tide is best at Avalanche?

The Avalanche profile does not specify a preferred tide stage. That does not mean tide has no effect: check local conditions alongside swell and wind.

What wind direction is offshore at Avalanche?

The Avalanche profile uses wind from SE (135°) as its preferred direction, with an offshore range of 90° to 180°. Wind speed matters too: light winds outside that range can still produce surfable conditions, while strong offshore winds can make takeoffs difficult.

What swell size and direction work best at Avalanche?

The Avalanche scoring profile favors swell from NW (290° to 345°), a swell-height range of 4.6m to 9.1m, and a reference period of 18s. These are model inputs, not guaranteed breaking-wave heights or a promise that the surf will suit every ability.

When is the best time of year to surf Avalanche?

The main season at Avalanche is Nov, Dec, Jan, Feb. Nov-Feb. Deepwater outer reef near Haleiwa. Handles massive swells.

How do I get to Avalanche?

The spot profile lists HNL as a nearby airport. The estimated road transfer is 50 minutes. A boat transfer is also required. The profile estimates $150 USD; confirm the current price and departure point with an operator. Paddle or tow-in from Haleiwa area.

What kind of wave is Avalanche?

Avalanche is a big wave break, a left-hander over a reef bottom. Difficulty is rated 10/10.

Best Season

Peak: Nov, Dec, Jan, Feb

Nov-Feb. Deepwater outer reef near Haleiwa. Handles massive swells.

Getting There

Airport
HNL
Drive time
50 min
Boat required
$150
Data quality
community

Strike Log

Community Discussion