Keaau surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 1 am Saturday 30 May 2026 HST
Forecast update in hr  min  s Forecast update imminent
Keaau surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Keaau sea temperature is
25.3° C
(Which is normal for this time of year)

Keaau surf forecast from 30 May 2026:

  • Best quality surf: Tuesday 2 Jun, 8PM (local time) - 3ft (0.9m), 11s period, NNW swell with offshore winds.
  • Most powerful swell: Friday 5 Jun, 2AM (local time) - 3.5ft (1.1m), 13s period, N swell with 398 kJ wave energy.
  • Next surfable swell (1★+): Saturday 30 May, 8AM (local time) - 3ft (0.9m), 8s period with NE swell.

Best Forecast Surf Conditions for Keaau this week:

The surf forecast for Keaau over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (May 30) at 8AM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.9m and 8s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Keaau in the next 16 days are 1.1m 13s and forecast to arrive on Friday (Jun 05) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 18s period and expected on Tuesday (Jun 02) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Sat 30th May)3ft (0.9m) 8s
Best Surf 8PM (Tue 2nd Jun)3ft (0.9m) 11s
Most Powerful 2AM (Fri 5th Jun)3.5ft (1.1m) 13s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Sat afternoon. Warm (max 27°C on Mon afternoon, min 22°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 28°C on Wed afternoon, min 23°C on Wed night). Wind will be generally light.

Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
1
0
0
1
0
1
1
0
1
1
1
1
1
2
2
2
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
NNW
10
0.7
NNW
10
0.9
N
9
0.6
NNE
8
0.5
N
8
0.6
N
10
0.6
NNW
10
0.6
N
9
1
NNE
9
0.8
NE
6
0.8
NNW
11
0.8
NNW
10
0.7
NNW
9
0.7
NNW
9
0.8
NNW
12
1
N
12
1.1
N
11
1.1
N
13
1
N
12
0.9
N
11
0.7
N
11
Wave Graph
Metric surfscale
Energy kJ
86
100
133
48
30
75
75
64
154
42
161
131
88
88
195
266
305
398
276
195
110
Wind (km/h)
5
NNE
5
SW
5
ENE
10
W
5
WSW
10
ENE
5
NNW
15
NE
15
NE
15
NE
15
NNE
10
ENE
10
NE
20
NE
20
ENE
20
ENE
20
ENE
20
ENE
20
ENE
25
NE
20
ENE
glassy
glassy
glassy
on
on
off
cross
off
off
cross-off
cross-off
off
off
off
off
off
off
off
off
off
off
High Tide
4:24PM0.60m
3:50AM0.10m
4:59PM0.61m
4:30AM0.09m
5:36PM0.61m
5:14AM0.09m
6:14PM0.59m
6:04AM0.08m
6:53PM0.57m
7:06AM0.09m
7:32PM0.55m
8:21AM0.11m
8:12PM0.51m
Low Tide
8:39AM-0.06m
11:55PM0.05m
9:10AM-0.06m
00:37AM0.05m
9:43AM-0.05m
1:20AM0.05m
10:17AM-0.03m
2:04AM0.04m
10:53AM-0.01m
2:46AM0.04m
11:33AM0.03m
3:25AM0.03m
12:22PM0.07m
3:59AM0.02m
clear
light rain
part cloud
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:50
5:50
5:50
5:48
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:09
7:10
7:10
7:10
7:12
7:12
7:13
1
Temp °C
25
25
24
24
25
24
25
27
24
26
27
25
26
28
24
25
26
24
25
26
24
26
26
25
25
27
26
27
27
24
27
29
25
28
29
23
24
24
24
24
23
22
Swell 1
Height (m)
Direction
Period (s)
1
S
17
0.9
S
16
0.9
N
9
0.8
SSW
15
0.8
SSW
15
0.8
SSW
14
0.8
S
18
1
S
18
1
S
16
1.1
S
16
1.1
S
16
1.2
SSW
18
1.4
SSW
16
1.3
SSW
16
1.2
SSW
16
1.1
SSW
15
1.1
N
11
1.1
N
13
1
N
12
0.9
N
11
0.7
N
11
Energy kJ
596
427
133
300
284
276
408
632
548
635
620
919
1055
882
730
551
305
398
276
195
110
Swell 2
Height (m)
Direction
Period (s)
0.8
NE
8
0.7
NNW
10
0.9
SSW
16
0.6
NNE
8
0.5
N
8
0.7
S
19
0.7
S
14
0.6
N
9
0.7
S
21
0.9
S
20
0.8
NNW
11
0.8
NNW
10
0.7
NNW
9
0.7
NNW
9
0.8
NNW
12
1
N
12
1
S
14
0.8
SSW
14
0.7
SSW
14
0.7
SSW
14
0.6
S
13
Energy kJ
77
100
416
40
30
365
195
64
436
611
161
131
88
88
195
266
423
273
207
189
126
Swell 3
Height (m)
Direction
Period (s)
0.7
NNW
10
0.6
NE
7
0.4
S
11
0.5
NNW
9
0.4
NNW
9
0.6
N
10
0.6
NNW
10
0.6
S
13
0.6
S
13
0.8
NE
6
0.8
SSW
19
0.8
SSW
14
0.1
SE
8
0.3
SSE
8
0.4
SSE
8
0.4
SSE
8
0.4
SE
8
0.2
SSE
6
0.2
SSE
8
0.1
NW
10
0.5
E
8
Energy kJ
86
42
39
48
28
75
75
126
125
42
497
276
3
12
26
26
18
3
7
4
29
Wind waves
Height (m)
Direction
Period (s)
0.5
NE
7
0.7
NE
4
1
NNE
9
0.8
NE
6
0.8
ENE
7
0.8
ENE
7
0.8
ENE
6
1.1
ENE
6
1.1
ENE
4
0.8
ENE
7
0.9
NE
6
1.1
NE
5
0.7
NE
6
Energy kJ
25
13
154
36
51
50
46
80
47
56
56
57
31
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
2
1
3
1
1
4
1
1
1
1
1
2
2
2
2
1
1
Distance (km)
0
0
0
7
4
0
2
0
0
2
0
0
0
0
0
0
0
0
0
0
0
Best forecast wave conditions in Oahu
Rating
(10 max)
1
1
2
2
2
3
3
1
1
4
1
1
1
1
1
2
2
2
2
1
1
Best forecast wave conditions in United States
Rating
(10 max)
1
1
4
2
2
4
4
2
4
4
1
4
1
1
2
2
3
4
2
1
4
Header Global
Rating
(10 max)
7
7
6
5
5
4
4
5
5
4
5
4
4
5
4
5
4
4
4
5
9
  • 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 Keaau Surf forecast

The above surf forecast table for Keaau provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Keaau can be found by selecting the local surf guide option on the grey menu. Our Keaau 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 (Keaau) 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 Keaau 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.

Keaau is 22 km (14 miles) from Wahiawa. If you plan a vacation in Oahu, look for hotels and other accommodation in Wahiawa. Wahiawa has rooms for a wide range of budgets as well as car hire and transport links.

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