Kahului Harbor
- Shortboard, Advanced riders
- Best for
- Intermediate to Advanced
- Skill Level
- Small waves, Swell
- Spot Type
- Busy
- 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 It may be incomplete, outdated, or incorrect.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
Kahului Harbor is an exposed reef break at the harbor edge in Wailuku, where waves break close to rocks and the reef. Surf conditions are described as having inconsistent surf locally, but also as consistently surfable—particularly during the winter season when swell arrives more reliably. The bottom is reef with rocks and coral, making the spot hazardous. Reported risks include sharp rocks, coral reef, sea urchins, sharks, and pollution. Additional hazards come from harbor infrastructure and boat traffic, including commercial shipping lanes that riders must avoid. Wind is strongly influenced by trade winds in the region. South to southwest winds are described with generally high reliability, while the harbor breakwater can create turbulence and wind shadows inside the basin. For surfing specifically, south/southwest winds are described as helping produce cleaner, groomed faces, while northeast trades can make conditions choppier. Water quality is a frequent concern, especially after rain; the guidance is to avoid entering the water for 48–72 hours after heavy rainfall due to urban/harbor runoff. Local etiquette and safety focus on yielding to local riders and staying out of the active shipping lanes. Overall, the spot is best suited to more experienced surfers due to the reef hazards and the technical positioning near the harbor rocks.
- Exposed reef break at the harbor edge with consistent winter surf
- Trade-wind reliability; harbor breakwater creates wind shadows/turbulence
- Notable water-quality sensitivity after heavy rain
- Hardened reef hazards: rocks/coral, sea urchins, and sharks
- Exposed reef break with consistent surf characteristics during the main season.
- Works well for surfing in winter, with winter north swells highlighted as the primary window.
- Trade-wind reliability supports other wind-based sports in adjacent harbor areas.
- Water quality can deteriorate quickly after heavy rain due to runoff.
- Reef hazards include sharp rocks/coral and sea urchins, with additional risks from sharks and boat traffic.
- Conditions can be difficult to judge near the harbor breakwater and rocky shoreline.
Wind, water and seasons
Wind
- Direction
- S, SW
- Wind Range
- 15–25 kts
- Wind Type
- Trade — South to southwest trade-wind influence; high reliability compared with many island sites.
- Reliability
- High reliability for trade winds (winds are most dependable when background winds are light or offshore for best surf).
- Gust Factor
- Moderate gusts
- Best Months
- November, December, January, February
- Recommended Kite Sizes
- 7–12 m²
Water & beach
- Water Type
- Small waves, Swell
- Beach
- Rocks
- Beach Size
- Small
- Waves
- Medium
- Chop Level
- Moderate chop — Northeast trades can make conditions choppy; other wind directions can be cleaner.
- Launch
- Small — Often involves navigating around the harbor breakwater and rocky shoreline; one description notes access via the western side of the harbor.
Through the year
Can get quite busy on weekends and during the winter swell season.
November–March (showers commonly brief, but can trigger water-quality warnings).
By sport
What to expect for each.
Kitesurfing is described as common at the western edge of the harbor entrance, with a technical rocky launch requiring good control.
- Kite Sizes
- 7–12 m²
Outside the harbor wall is used by experienced wingfoilers; launch is rocky and technical.
- Foil Friendly
- Limited — Limited foil friendliness is noted for this area.
- Min Depth
- 1.5 meters
- Wing Sizes
- 4–5 m²
Exposed reef break off the harbor rocks with inconsistent-but-often reliable surf. Waves break near the rocks at the harbor edge and require careful navigation due to shallow reef ledges and harbor infrastructure.
- Wave Direction
- Both
- Optimal Swell
- N, NNE
- Swell Height
- 1–3 m
- Optimal Tide
- All tides
- Shelter
- Semi-sheltered — Semi-sheltered relative to the open coast, but the spot is still an exposed reef break near harbor breakwater and rocky shoreline.
- Wind Effect
- South or southwest winds tend to produce cleaner, more groomed faces; northeast trade winds can be side-on and make conditions choppy.
- Bigger Swell
- Can handle larger swells, but it becomes increasingly difficult and dangerous near the breakwater due to harder paddling and more hazardous positioning around harbor structures.
- Wave Quality
- Good — Described as having consistent surf and a decent wall for maneuvers on the right swell angles.
- Wave Power
- Moderate
- Wave Shape
- Peeling
- Peel Speed
- Medium
- Ride Length
- Medium — Waves provide a decent wall; rides typically last 50 to 100 meters depending on swell angle.
- Typical Ride Length
- 50–100 m
- Ride Length Details
- Typically 50–100 meters; one source cites about 75 meters on average.
Check the forecast before you go
See wind, waves, weather and session windows for Kahului Harbor in the full forecast view.
Kahului Harbor wind and wave forecast summary
- Wind
- 4–10 ktsGusts 21 kts
- Direction
- NE53°
- Strongest day
- Fri, Oct 2310 kts
- Windy days
- 0/712 kts or more
- Waves
- 1.4–2.2 m9s period
- Temperature
- 23–28 °C
Over the next 7 days, Kahului Harbor is forecast for daytime winds of 4–10 kts, peaking around 10 kts on Friday, October 23 with gusts to 21 kts. The prevailing direction is NE. Waves run 1.4–2.2 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
- Rocks
- Coral reef
- Sharp rocks
- Sharks
- Sea urchins
- Pollution
- Boat traffic
- Harbor breakwater
Rescue & support
- Rescue & Self-Rescue
- Limited
- Emergency Info
- Maui Memorial Medical Center is in nearby Wailuku; emergency number is 911.
- Localism / Vibe
- Moderate
Rules of the spot
Standard surfing etiquette applies; yield to local riders and stay clear of the commercial shipping lanes inside the harbor.
- No surfing within the active commercial shipping lanes inside the harbor.
- Avoid the water for 48–72 hours after heavy rain due to urban/harbor runoff and reduced water quality.
- Because the spot is right off the rocks, plan for the short walk from the western harbor end where parking is closest.
Getting there & access
- Nearest City
- Wailuku
- Nearest Town
- Kahului
- Parking
- Limited public parking along the road and near the harbor’s western entrance; a large dirt area near the harbor is described as informal parking.
- Access
- Continue down Lower Main Street in Wailuku until reaching a large dirt area; the harbor and surf spot are right off the rocks at the harbor edge. Break is reached by walking along the shoreline or breakwater from public parking areas.
- Cost Level
- Moderate
- Local Language
- English
What's on the beach
- Accommodation
- Nearby town — Various hotels and vacation rentals available in the immediate Kahului and Wailuku areas.
- Food & Drink
- Numerous restaurants, cafes, and grocery stores within a short drive in downtown Kahului.
- Equipment Rental:
- Surf shops in Kahului offer a range of rentals and gear.
- Gear Storage
- Several schools and specialized shops offer overnight or long-term gear storage for travelers.
- Gear Repair
- Local surf shops provide board repair services.
No schools or services are listed for this spot yet.
Off the water
The Wailuku and Kahului coast combines logistical convenience with nearby cultural and scenic attractions, making it practical to pair a surf session with sightseeing and food around Kahului.
Iconic volcanic summit and alpine desert.
A lush valley featuring the iconic Iao Needle.
A premier venue for concerts, art galleries, and traditional Hawaiian performances.
Historic Kahului waterfront and harbor district.
Scenic drive with waterfalls and rainforests.
Haleakala sunrise hiking experiences.
Humpback whale watching (Dec–Apr).
Local and international cuisine in Kahului town.
A popular local hub for coffee and light meals in historic Wailuku.
A wetland bird sanctuary home to endangered Hawaiian waterbirds.
Ocean safety programs and beach parks.
From riders who've been here
Latest reported conditions
Spot questions
Frequently asked questions
When is the best season at Kahului Harbor?
The best overall months at Kahului Harbor are January, December, February. The best wind months are November, December, January, February.
Which wind directions work at Kahului Harbor?
Kahului Harbor works with S, SW winds.
What equipment sizes are recommended at Kahului Harbor?
Recommended equipment sizes at Kahului Harbor: Kitesurfing: 7–12 m² · Wingfoiling: 4–5 m². The typical wind range is 15–25 kts.
What skill level is Kahului Harbor suitable for?
Kahului Harbor suits these riding levels: Kitesurfing: Advanced · Wingfoiling: Advanced · Surfing: Intermediate to Advanced.