Kahului Harbor surf break

Kahului Harbor surfForecast / HAW – Maui / USA

information circle16 Day Weather and Surf, issued 1 pm Sunday 03 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
25.1° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Kahului Harbor this week:

The surf forecast for Kahului Harbor over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (May 05) at 8AM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 1.0m and 7s. Another secondary swell of 1.4m and 8s 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 16 days are 1.7m 15s and forecast to arrive on Thursday (May 07) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 15s period and expected on Sunday (May 03) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 5th May)3.5ft (1.1m) 12s
Best Surf 2AM (Fri 8th May)5.5ft (1.7m) 13s
Most Powerful 5PM (Thu 7th May)5.5ft (1.7m) 15s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Mon afternoon. Warm (max 25°C on Wed morning, min 22°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 25°C on Wed afternoon, min 23°C on Wed night). Wind will be generally light.

Sun
3
Monday
4
Tuesday
5
Wednesday
6
Thursday
7
Friday
8
Saturday
9
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
0
0
1
2
1
2
1
1
1
0
2
4
3
2
1
1
1
0
0
Swell
Height Map
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<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1.4
ENE
8
1.3
ENE
8
1.2
ENE
8
0.8
NW
13
1.1
NW
12
1.1
NW
12
1
NW
11
0.9
NW
11
0.9
NW
11
0.8
NW
10
0.5
NW
18
0.9
NW
16
1.7
NNW
15
1.7
NNW
13
1.4
NW
13
1.3
NW
12
1.1
NW
12
0.9
NW
11
0.9
NW
11
0.8
NW
11
0.9
NW
12
Wave Graph
Metric surfscale
Energy kJ
237
181
173
242
324
309
255
198
163
120
152
367
1158
961
647
471
355
205
172
137
232
Wind (km/h)
20
NE
20
ENE
15
ENE
20
ENE
15
E
15
E
10
ENE
10
SW
10
NNW
5
NNE
10
NE
10
NE
15
NE
5
ESE
10
E
15
E
15
E
10
E
10
ENE
10
ENE
10
NE
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-off
cross-on
glassy
cross-on
cross-on
cross-on
cross-off
cross-off
cross
cross
cross
cross-on
cross-on
cross-on
High Tide
4:03PM0.70m
2:28AM0.35m
4:41PM0.67m
2:46AM0.33m
5:26PM0.63m
2:49AM0.30m
6:21PM0.60m
7:25PM0.58m
8:33PM0.57m
6:44AM0.21m
9:28PM0.56m
10:10AM0.27m
Low Tide
10:33PM0.24m
9:00AM-0.10m
11:25PM0.27m
9:28AM-0.07m
00:40AM0.29m
9:58AM-0.03m
10:32AM0.02m
11:18AM0.08m
6:08AM0.21m
5:12AM0.17m
clear
clear
part cloud
rain showers
part cloud
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:52
5:52
5:50
5:50
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:51
6:51
6:52
6:52
6:52
6:52
6:52
6:53
1
Temp °C
24
23
24
24
23
24
24
24
25
25
24
25
25
24
25
25
24
24
24
23
24
23
22
24
24
23
25
25
26
27
27
27
27
27
26
27
26
24
27
25
24
24
Swell 1
Height (m)
Direction
Period (s)
0.8
NW
12
0.7
NW
11
0.7
NW
11
0.8
NW
13
1.1
NW
12
1.1
NW
12
1
NW
11
0.9
NW
11
0.9
NW
11
0.8
NW
10
0.8
NW
10
0.9
NW
16
1.7
NNW
15
1.7
NNW
13
1.4
NW
13
1.3
NW
12
1.1
NW
12
0.9
NW
11
0.9
NW
11
0.8
NW
11
0.9
NW
12
Energy kJ
203
125
116
242
324
309
255
198
163
120
115
367
1158
961
647
471
355
205
172
137
232
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
15
0.1
SW
19
0.4
NW
14
0.1
SW
13
0.1
SW
18
1
E
7
0.8
E
8
0.7
E
7
0.6
E
8
0.6
E
8
0.5
E
8
0.6
E
8
0.7
E
8
0.9
E
8
0.8
E
8
0.8
E
8
0.1
NE
8
0.8
E
8
0.1
NW
15
0.7
E
8
0.7
E
8
Energy kJ
9
15
46
7
12
106
74
53
45
49
34
47
63
105
84
82
3
76
8
61
66
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
14
0.1
W
19
0.1
W
19
0.1
S
13
0.1
SW
18
0.4
NE
7
0.1
NE
9
0.3
NE
8
0.4
NE
8
0.5
NW
18
0.6
NW
9
0.1
SW
15
0.3
NE
9
0.2
NNE
9
0.2
NNE
8
0.1
N
10
0.1
NE
8
0.1
NE
8
0.3
NW
14
0.5
NW
15
Energy kJ
8
7
7
3
12
11
3
11
17
152
68
8
14
8
7
2
3
3
29
104
Wind waves
Height (m)
Direction
Period (s)
1.4
ENE
8
1.3
ENE
8
1.2
ENE
8
1.2
ENE
8
1.2
E
7
1.3
E
8
0.3
NE
2
0.3
NE
7
0.5
ENE
3
1.3
ESE
8
1.2
ESE
8
1.2
ESE
8
0.8
E
8
1
ESE
8
0.8
E
8
Energy kJ
237
181
173
173
155
201
1
7
6
216
185
181
74
133
72
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
3
2
2
1
1
2
2
4
4
3
1
2
2
2
2
1
Distance (km)
18
12
12
18
12
4
4
0
12
0
4
4
4
0
0
12
4
4
4
4
18
Best forecast wave conditions in Maui
Rating
(10 max)
1
1
1
2
2
3
2
2
1
2
2
2
4
4
3
2
2
2
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
3
3
2
3
3
3
2
3
1
2
3
4
4
4
3
3
4
2
2
4
3
Header Global
Rating
(10 max)
4
5
5
5
4
5
9
9
5
6
5
9
7
9
6
5
4
5
9
4
6
  • 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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