Reef
left
Level 7/10

Cannons

North Shore, Kauai, USA (HI)
🪸Sharp reef⚠️Shallow👊Localism

Cannons is the equally hollow and shallow left on the other side of Ha'ena Bay from Tunnels. A shorter paddle than its neighbor, it delivers powerful barrels in a breathtaking setting. Very localized.

3-Day Forecast
Today
30
4
Poor
3.3m
@12s
39km/h
Tue
31
0
Poor
2.9m
@11s
41km/h
Wed
1
0
Poor
2.5m
@10s
33km/h
+7
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Today's Conditions

Swell
3.3m
NNE(17°)
Score: 0/25
Period
12s
Medium period swell
Score: 14/25
Wind
39km/h
NE(55°)
Score: 0/25
Weather
21°C
0.0mm38%
Windswell Component
1.2mNE@4s
Secondary Swell
0.5mNW
Forecast Confidence
100%
Sources: open-meteo-marine, open-meteo-weather
Best Session
morning
AM: 37 km/h NE|PM: 39 km/h NE
Lighter winds early (37 km/h)
Tide at 7am (0.4m)

Location & Conditions

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

Tide Times

1:15 am
High tide - 0.77m
7:30 am
Low tide - 0.36m
1:30 pm
High tide - 0.67m
7:15 pm
Low tide - 0.38m
Times shown in spot-local time.

📊 Buoy ValidationBuoy Data

NW Hawaii

349 km away

Source: noaa

Forecast Validation
Buoy observed: 0.0m
Forecast error: ±3.3m

Strike Score Breakdown

4
Poor
Components
Swell Direction5/25
Swell Size0/25
Swell Period14/25
Wind0/25
Raw Score19/100
Adjustments
⚠️ Weak Component-15
🚫 Undersized Capmax 15
Adjusted Score4/100
Confidence
Multiplier×1.00
Final Score4

Spot Details

Swell Requirements

Optimal direction
NNW (330°)
Direction range
300° - 360°
Size range
1.2m - 3m
Ideal size
2.5m
Height multiplier
0.97×
Ideal period
14s+

Wind Requirements

Optimal direction
SSW (200°)
Offshore range
190° - 250°

Tide Requirements

Optimal tide
mid

Water temp

25°C

Wetsuit

Boardshorts / Rashguard

Bottom

Reef

Max wave face

4m+

Board

Shortboard

Consistency

6/10

Difficulty

7/10

Crowd level

4/10

Access: Beach access at Ha'ena Beach Park. Shorter paddle than Tunnels.

Best Season

Peak: Nov, Dec, Jan, Feb, Mar

Nov-Mar. Other side of Ha'ena Bay from Tunnels. Equally hollow left.

Getting There

Airport
LIH
Drive time
45 min
Data quality
verified

Strike Log

Community Discussion