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Surf Forecasts:

Kahului Harbor surf break

Kahului Harbor surfForecast / HAW – Maui / USA

information circle12 Day Weather and Surf, issued 7 am Tuesday 19 Aug 2025 HST
Forecast update in hr  min  s Forecast update imminent
Kahului Harbor surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kahului Harbor sea temperature is
26.8° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Kahului Harbor this week:

The surf forecast for Kahului Harbor over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 25) at 2AM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.2m and 7s. Another secondary swell of 0.1m and 9s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Kahului Harbor in the next 12 days are 1.5m 8s and forecast to arrive on Tuesday (Aug 26) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 13s period and expected on Tuesday (Aug 19) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Mon 25th Aug)4.5ft (1.3m) 8s
Best Surf 2AM (Mon 25th Aug)4.5ft (1.3m) 8s
Most Powerful 2AM (Tue 26th Aug)5ft (1.5m) 8s

Table - best surf conditions forecast for Kahului Harbor over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 27°C on Tue morning, min 24°C on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 27°C on Sat morning, min 24°C on Fri night). Wind will be generally light.

Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.2
E
1.4
ENE
1.1
ENE
1
ENE
1.1
ENE
1.1
E
1.1
E
1.2
E
1.1
E
1.1
E
1.1
E
1.1
E
1.2
E
1.3
E
1.4
E
1.4
E
1.5
E
1.3
E
1.3
E
1.4
E
1.5
E
Period(s) (?)777766666768888888888
Wave
Graph
(?)Metric surfscale
Energy (?)18019311410185869712912013599152197224251263304229230260493
Wind
(km/h)
15
ENE
20
NE
20
ENE
20
E
20
ENE
20
E
20
ENE
20
NE
15
E
20
ENE
20
ENE
20
E
15
ENE
25
E
20
E
20
E
20
ENE
15
ESE
20
ENE
20
ENE
15
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on		cross-
on		crosscross-
on		crosscrosscross-
on		crosscrosscrosscrosscross-
on		crosscrosscrosscrosscross-
off		crosscrosscross
High Tide
/ height (m)
1:10PM
0.83
11:57PM
0.36
1:43PM
0.86
12:48AM
0.42
2:11PM
0.86
1:31AM
0.48
2:37PM
0.85
2:09AM
0.53
3:00PM
0.82
2:47AM
0.56
3:21PM
0.78
3:24AM
0.59
3:39PM
0.73
4:02AM
0.59
Low Tide
/ height (m)
8:25PM
0.28
6:09AM
-0.03
8:32PM
0.26
6:55AM
-0.05
8:46PM
0.23
7:35AM
-0.05
9:03PM
0.20
8:11AM
-0.02
9:21PM
0.17
8:46AM
0.03
9:41PM
0.15
9:19AM
0.10
10:01PM
0.12
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Sunrise6:05--6:05--6:05--6:05--6:07--6:07--6:07--
Sunset-6:52--6:52--6:51--6:50--6:49--6:47--6:47-
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
Rain (mm)
---------------------
Temp. °C272725262625272626262625272726262626262626
Feels °C (?)272626252524272526262625272625252526262526
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for HAW - Maui

  1. weather stationWind Update The wind is still cross-on at Kahului Harbor (moderate winds from the ENE at BUOY-KLIH1 1 km from Kahului Harbor). 1.1m 7s swell from the ENE to make surfable waves.

    1 hour 18 minutes ago Kahului Harbor
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<
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1 h 18 min ago

28 km/h
ENE
Cross-On
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kahului Harbor surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Kahului Harbor at:
surf-forecast.com

Information about the Kahului Harbor Surf forecast

The above surf forecast table for Kahului Harbor provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Kahului Harbor can be found by selecting the local surf guide option on the grey menu. Our Kahului Harbor surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kahului Harbor) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Kahului Harbor may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Kahului Harbor is 3 km (2 miles) from Wailuku. If you plan a vacation in Maui, look for hotels and other accommodation in Wailuku. Wailuku has rooms for a wide range of budgets as well as car hire and transport links.

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