Kahului Harbor surf break

Kahului Harbor surfForecast / HAW – Maui / USA

information circle16 Day Weather and Surf, issued 7 pm Monday 11 May 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
25.3° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Kahului Harbor this week:

The most powerful waves expected at Kahului Harbor in the next 16 days are 2.0m 8s and forecast to arrive on Sunday (May 17) 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 0.2m 16s period and expected on Saturday (May 16) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Sun 17th May)6.5ft (2.0m) 8s

Table - best surf conditions forecast for Kahului Harbor over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 25°C on Tue morning, min 22°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 6mm), mostly falling on Fri morning. Warm (max 27°C on Sat afternoon, min 23°C on Thu night). Wind will be generally light.

Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
Sunday
17
Mon
18
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
0
0
0
1
1
1
1
1
2
0
1
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
NW
11
1.2
E
6
1.5
ENE
6
1.5
E
6
1.4
ENE
7
1.6
ENE
7
1.6
ENE
8
0.9
NW
15
1.1
NW
15
1.1
NW
14
1.1
NW
13
1.6
ENE
8
1.9
E
8
1.6
ENE
8
1.7
ENE
8
2
E
8
1.6
ENE
8
1.7
ENE
8
1.6
E
8
1.6
ENE
8
1.6
ENE
8
Wave Graph
Metric surfscale
Energy kJ
117
98
155
176
180
269
300
335
496
471
388
341
481
359
370
529
359
392
341
310
318
Wind (km/h)
20
ENE
20
ENE
25
ENE
25
ENE
15
ENE
25
ENE
20
E
15
ENE
25
ENE
20
E
20
E
20
ENE
20
E
20
ENE
20
ESE
20
E
20
ENE
20
ENE
20
ENE
20
ENE
25
ENE
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross
cross
cross-on
cross
cross
cross
High Tide
10:46PM0.55m
12:05PM0.49m
11:19PM0.52m
12:48PM0.61m
11:51PM0.50m
1:30PM0.72m
00:25AM0.46m
2:13PM0.80m
1:00AM0.43m
2:59PM0.84m
1:35AM0.39m
3:46PM0.86m
2:11AM0.35m
4:36PM0.84m
Low Tide
5:36AM0.05m
5:38PM0.23m
5:59AM-0.03m
6:41PM0.23m
6:27AM-0.11m
7:39PM0.23m
6:59AM-0.17m
8:35PM0.23m
7:34AM-0.22m
9:31PM0.24m
8:12AM-0.23m
10:31PM0.25m
8:52AM-0.21m
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
rain showers
thunderstorm
clear
clear
thunderstorm
thunderstorm
clear
part cloud
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:48
5:48
5:48
5:47
5:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:53
6:54
6:54
6:54
6:55
6:55
6:57
6:57
1
2
2
1
Temp °C
24
25
25
24
25
25
24
25
25
24
25
25
24
25
27
26
25
26
24
25
25
23
24
23
23
25
24
23
25
24
24
24
24
24
26
27
26
26
26
24
24
24
Swell 1
Height (m)
Direction
Period (s)
0.7
NW
11
0.7
N
7
0.8
NNW
10
0.8
NNW
10
0.7
NNW
10
0.5
NW
9
0.4
NNW
17
0.9
NW
15
1.1
NW
15
1.1
NW
14
1.1
NW
13
0.9
NW
12
1.6
ENE
8
0.6
NW
11
0.6
NNW
11
1.7
ENE
8
0.4
NNW
10
0.4
NNW
10
0.4
NW
10
0.3
NNW
9
0.2
NNW
9
Energy kJ
117
43
135
111
81
41
115
335
496
471
388
244
350
97
81
392
42
39
24
16
8
Swell 2
Height (m)
Direction
Period (s)
0.6
N
7
0.6
NNW
11
0.1
N
13
0.2
N
12
0.1
SW
16
0.3
N
10
0.4
N
9
0.4
N
8
0.4
N
8
0.3
N
8
0.2
N
8
0.2
N
8
0.7
NW
12
0.3
NNW
13
0.1
SW
16
0.5
NW
11
0.1
SW
15
0.1
SW
15
0.2
NNW
14
0.2
NNW
13
0.2
NNW
13
Energy kJ
33
98
3
12
10
16
23
22
22
12
5
5
142
35
9
57
8
9
20
17
16
Swell 3
Height (m)
Direction
Period (s)
0.2
N
14
0.4
NW
10
0.1
SW
16
0.1
SW
16
0.1
NW
19
0.4
NW
9
0.3
NW
9
0.1
W
18
0.1
SW
17
0.2
WSW
16
0.2
WSW
16
0.3
NNW
15
0.1
SW
16
0.2
NNW
13
0.1
SW
15
0.1
NW
17
0.1
SW
21
0.1
SW
14
0.2
WSW
19
0.2
WSW
19
Energy kJ
15
37
10
10
14
21
12
6
11
26
25
42
10
18
8
11
18
8
37
37
Wind waves
Height (m)
Direction
Period (s)
1.2
E
6
1.2
E
6
1.5
ENE
6
1.5
E
6
1.4
ENE
7
1.6
ENE
7
1.6
ENE
8
1.5
ENE
8
1.6
ENE
8
1.6
ENE
8
1.6
E
8
1.6
ENE
8
1.9
E
8
1.6
ENE
8
1.7
ENE
8
2
E
8
1.6
ENE
8
1.7
ENE
8
1.6
E
8
1.6
ENE
8
1.6
ENE
8
Energy kJ
91
98
155
176
180
269
300
240
283
341
341
341
481
359
370
529
359
392
341
310
318
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
2
2
Distance (km)
18
12
18
18
19
18
18
18
18
12
12
12
18
19
18
12
12
12
12
12
18
Best forecast wave conditions in Maui
Rating
(10 max)
1
1
1
1
1
1
1
2
2
2
2
1
1
1
1
1
1
2
1
2
2
Best forecast wave conditions in United States
Rating
(10 max)
3
2
1
2
1
1
4
3
3
4
2
2
2
1
2
3
2
4
6
5
5
Header Global
Rating
(10 max)
9
8
9
9
6
9
5
5
5
5
5
5
5
4
5
5
5
4
6
5
4
  • 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 16 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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