Kahului Harbor surf break

Kahului Harbor surfForecast / HAW – Maui / USA

information circle12 Day Weather and Surf, issued 1 am Wednesday 14 Jan 2026 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
25.6° C
(Which is 1.1°C warmer than 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 Wednesday (Jan 14) at 11AM. The primary swell is predicted to be 1.9m and 13s period with a secondary swell of 0.6m and 9s. 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 3.5m 15s and forecast to arrive on Thursday (Jan 15) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Wednesday (Jan 14) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Wed 14th Jan)6ft (1.9m) 13s
Best Surf11AM (Wed 14th Jan)6ft (1.9m) 13s
Most Powerful11PM (Thu 15th Jan)11ft (3.5m) 15s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 13mm), heaviest on Thu morning. Warm (max 25°C on Wed morning, min 19°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 24°C on Mon morning, min 20°C on Sat night). Wind will be generally light.

Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
4
1
1
0
0
0
0
0
2
0
1
0
2
1
3
3
1
3
3
4
3
Swell
Height Map
Wave Height (m) & direction (?)
1.9
NW
1.6
NW
1.2
NW
1.9
NW
3
NW
3.5
NW
3.5
NNW
3
NNW
2.4
N
1.7
NNW
1.5
N
1.3
N
0.9
NNW
1.9
NW
2.1
NW
1.4
NW
1.2
NW
0.9
NW
1
NW
1.2
NW
1.6
NW
Period(s) (?)131312121315141413121212191716141313121715
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1204851428105926555548439534651992905661472657205420288105112823008311154
Wind
(km/h)
10
SSW
25
SSW
25
SSW
20
NNW
25
N
30
NE
25
NE
25
NE
20
ENE
30
ENE
25
ENE
25
E
25
E
25
E
15
E
10
E
20
E
5
SE
0
NNW
5
N
10
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
ononcross-
on
cross-
on
cross-
on
crosscross-
on
crosscrosscrosscrosscross-
off
crosscrosscross-
off
glassglasscross-
on
High Tide
/ height (m)
10:15AM
0.30
1:39AM
0.69
11:34AM
0.31
2:08AM
0.73
12:26PM
0.33
2:37AM
0.76
1:09PM
0.35
3:05AM
0.78
1:48PM
0.37
3:32AM
0.79
2:26PM
0.39
3:59AM
0.78
3:06PM
0.40
4:23AM
0.76
Low Tide
/ height (m)
8:34AM
0.30
5:38PM
-0.04
8:35AM
0.27
6:20PM
-0.08
8:51AM
0.25
6:58PM
-0.12
9:12AM
0.23
7:34PM
-0.14
9:36AM
0.21
8:07PM
-0.15
10:02AM
0.20
8:40PM
-0.13
10:29AM
0.17
9:12PM
-0.09
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Sunrise7:05--7:05--7:05--7:05--7:05--7:05--7:05--
Sunset-6:04--6:05--6:06--6:06--6:07--6:07--6:07-
clear
clear
rain showers
heavy rain
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
Rain (mm)
--112-----------------
Temp. °C252524222320202120222221232322242424242423
Feels °C (?)262222201916161716171717201920242325272625
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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