Surf Forecast Surf Report

Kahuku Ranch surfForecast / HAW – Big Island / USA

information circle12 Day Weather and Surf, issued 7 pm Wednesday 30 Apr 2025 HST
Forecast update in hr  min  s Forecast update imminent
Kahuku Ranch surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kahuku Ranch sea temperature is
25.7° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Kahuku Ranch this week:

The most powerful waves expected at Kahuku Ranch in the next 12 days are 0.8m 18s and forecast to arrive on Wednesday (Apr 30) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 8s period and expected on Wednesday (May 07) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Wed 30th Apr)2.5ft (0.8m) 18s

Table - best surf conditions forecast for Kahuku Ranch over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sunday
11
Mon
12
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.8
SSW
0.8
SSW
0.8
SSW
0.8
SSW
0.8
SSW
0.6
S
0.6
S
0.5
S
0.6
S
0.4
SW
0.4
SSW
0.5
S
0.4
SSW
0.4
SSW
0.4
SSW
0.3
SSW
0.4
NW
0.3
SSW
0.3
SSW
0.3
SSW
0.2
SSW
0.3
SSW
0.4
SSW
0.4
SSW
0.5
S
0.4
SSW
0.5
S
0.7
S
0.8
S
0.8
S
0.8
S
0.7
S
0.7
S
0.7
S
0.6
S
0.5
S
Period(s) (?)171616151414131313161918181616151214141616161515141918181616151414131312
Wave
Graph
(?)Metric surfscale
Energy (?)4043413332882731421258911489125162104868643424140512648757210112216530033030627220018417112378
Wind
(km/h)
30
ENE
30
E
35
E
30
ENE
40
E
35
E
35
ENE
35
E
35
E
35
ENE
35
E
35
E
30
E
35
E
35
E
30
ENE
40
E
25
ENE
30
ENE
35
E
30
E
35
ENE
35
E
30
E
35
ENE
30
E
30
ENE
30
ENE
25
E
35
E
25
ENE
35
E
35
E
30
ENE
35
E
35
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
5:51AM
0.42
7:07PM
0.93
6:55AM
0.38
8:11PM
0.86
8:40AM
0.37
9:21PM
0.80
10:44AM
0.41
10:30PM
0.76
12:02PM
0.50
11:28PM
0.73
12:50PM
0.59
12:15AM
0.70
1:25PM
0.68
12:55AM
0.67
1:56PM
0.77
1:30AM
0.64
2:26PM
0.84
2:04AM
0.61
2:55PM
0.90
2:36AM
0.57
3:25PM
0.93
3:07AM
0.54
3:57PM
0.95
Low Tide
/ height (m)
1:20AM
0.24
11:31AM
0.09
2:37AM
0.26
12:20PM
0.17
4:02AM
0.26
1:28PM
0.25
5:11AM
0.24
3:10PM
0.32
5:56AM
0.21
4:56PM
0.34
6:28AM
0.18
6:14PM
0.33
6:55AM
0.15
7:13PM
0.31
7:18AM
0.12
8:02PM
0.28
7:41AM
0.10
8:44PM
0.25
8:05AM
0.09
9:24PM
0.23
8:30AM
0.07
10:02PM
0.22
8:56AM
0.07
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sunday
11
Mon
12
Sunrise-5:54--5:54--5:54--5:52--5:52--5:52--5:50--5:50--5:50--5:50--5:50--5:48-
Sunset--6:45--6:45--6:45--6:45--6:45--6:45--6:46--6:46--6:46--6:47--6:47--6:47
clearclearpart cloudclearclearclearclearclearclearclearclearclearpart cloudclearpart cloudclearclearclearclearclearpart cloudclearpart cloudpart cloudpart cloudpart cloudpart cloudclearclearpart cloudclearpart cloudpart cloudpart cloudclearpart cloud
Rain (mm)
------------------------------------
Temp. °C242525242525242525242525242525242525242525242525242525242525242526242525
Feels °C (?)222222202021202020202021202121202021212121212121212222222222212022202020

Short Range Forecast: Mostly dry. Warm (max 25°C on Thu morning, min 23°C on Wed night). Mainly strong winds.

Days 3-6 Weather Summary Mostly dry. Warm (max 25°C on Sun morning, min 23°C on Sat night). Mainly fresh winds.

Days 6-9 Weather Summary Mostly dry. Warm (max 25°C on Wed morning, min 23°C on Tue night). Mainly fresh winds.

Long Range Forecast: Mostly dry. Warm (max 26°C on Sun afternoon, min 23°C on Fri night). Mainly fresh winds.

  • 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 Kahuku Ranch Surf forecast

The above surf forecast table for Kahuku Ranch provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Kahuku Ranch can be found by selecting the local surf guide option on the grey menu. Our Kahuku Ranch 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 (Kahuku Ranch) 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 Kahuku Ranch 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.

Kahuku Ranch is 107 km (66 miles) from Hilo. If you plan a vacation in Big Island, look for hotels and other accommodation in Hilo. Hilo has rooms for a wide range of budgets as well as car hire and transport links.

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