Kahului Harbor Surf Break

Lat Long: 20.90° N 156.48° W

Kahului Harbor Surf Forecast and Surf Report

Issued: 7 am 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kahului Harbor sea temperature is
26.9°C
0.2° 

Kahului Harbor surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Kahului Harbor surf forecast from 24 Aug 2026:

  • Most powerful swell: Tuesday 25 Aug, 11AM (local time) - 5.5ft (1.7m), 8s period, E swell with 365 kJ wave energy.

Best Forecast Surf Conditions for Kahului Harbor this week:

The most powerful waves expected at Kahului Harbor in the next 16 days are 1.7m 8s and forecast to arrive on Tuesday (Aug 25) at 11AM. 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 17s period and expected on Sunday (Aug 30) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11AM (Tue 25th Aug)5.5ft (1.7m) 8s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Mon afternoon. Warm (max 28°C on Mon morning, min 24°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

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

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
ENE
9
1.7
ENE
6
1.7
E
6
1.5
E
8
1.5
E
8
1.5
E
8
1.7
E
8
1.6
ENE
7
1.4
ENE
7
1.4
ENE
7
1.4
ENE
7
1.3
ENE
7
1.3
ENE
7
1.3
ENE
7
1.2
ENE
7
1.2
ENE
7
1.4
ENE
7
1.4
ENE
7
1.5
ENE
7
1.4
ENE
7
1.3
ENE
7
Wave Graph
Metric surfscale
Energy kJ
442
223
217
291
295
294
365
284
199
188
178
163
166
154
135
128
171
176
195
181
171
Wind (km/h)
20
ENE
25
ENE
20
ENE
20
ENE
20
E
20
ENE
20
ENE
25
ENE
20
ENE
15
ENE
20
ENE
20
ENE
15
ENE
20
NE
15
ENE
20
ENE
20
ENE
20
ENE
20
ENE
20
NE
20
ENE
Wind State
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
1:07PM0.73m
11:42PM0.36m
1:30PM0.77m
00:25AM0.41m
1:53PM0.80m
1:02AM0.47m
2:15PM0.81m
1:38AM0.52m
2:37PM0.81m
2:14AM0.56m
2:57PM0.80m
2:52AM0.60m
3:16PM0.76m
3:32AM0.62m
Low Tide
8:04PM0.29m
5:58AM0.05m
8:07PM0.27m
6:36AM0.01m
8:19PM0.24m
7:10AM-0.01m
8:36PM0.21m
7:42AM-0.01m
8:55PM0.17m
8:15AM0.02m
9:15PM0.13m
8:48AM0.07m
9:38PM0.10m
clear
part cloud
clear
clear
thunderstorm
thunderstorm
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:07
6:07
6:07
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:49
6:47
6:47
6:46
6:45
6:45
6:44
 mm
1
1
Temp °C
27
27
26
28
28
26
27
27
25
27
26
25
27
27
25
26
26
25
26
27
25
Feels °C
28
28
27
29
29
28
27
27
25
27
26
25
27
27
24
26
26
25
25
27
24
  • 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
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Quick surf report for Kahului Harbor:

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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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