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Surf Forecasts:

Keaau surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 7 am Tuesday 14 Oct 2025 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
27.2° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Keaau this week:

The surf forecast for Keaau over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Oct 14) at 2PM. The primary swell is predicted to be 1.5m and 14s period with a secondary swell of 0.6m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Keaau in the next 12 days are 1.6m 17s and forecast to arrive on Tuesday (Oct 21) at 11AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 7s period and expected on Sunday (Oct 19) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Tue 14th Oct)5ft (1.5m) 14s
Best Surf 2PM (Tue 14th Oct)5ft (1.5m) 14s
Most Powerful11AM (Tue 21st Oct)5ft (1.6m) 17s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Some drizzle, heaviest during Wed afternoon. Warm (max 29°C on Thu afternoon, min 24°C on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 29°C on Fri afternoon, min 24°C on Sat night). Wind will be generally light.

Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
3
4
3
3
3
3
3
3
3
4
4
3
2
2
2
2
1
2
2
2
4
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.5
NW
1.6
NW
1.3
NW
1.3
NW
1.5
NW
1.5
NW
1.3
NW
1.3
NW
1.1
NW
1.5
NNW
1.4
NW
1.3
NNW
1
NW
0.9
NNW
0.7
NW
1
NE
0.9
NE
0.6
NNW
0.8
NNW
0.8
NNW
1.4
NW
Period(s) (?)1514141414141413131614131212118815131220
Wave
Graph
(?)Metric surfscale
Energy kJ (?)9249706766568748866965774441141846563287247126123991422221841394
Wind
(km/h)
10
W
10
ESE
10
ENE
10
NE
20
ENE
10
E
5
E
20
ENE
10
E
10
ENE
15
ENE
15
ENE
20
NE
20
ENE
15
ENE
10
NE
20
ENE
10
E
15
ENE
20
ENE
20
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
off		offoffoffoffoffoffoffoffoffoffoffoffoffoffoffoffoffoffoff
High Tide
/ height (m)
11:35AM
0.62
1:01AM
0.25
12:30PM
0.59
1:43AM
0.32
1:15PM
0.56
2:18AM
0.39
1:52PM
0.52
2:49AM
0.45
2:25PM
0.47
3:18AM
0.51
2:55PM
0.42
3:47AM
0.55
3:24PM
0.37
4:17AM
0.59
Low Tide
/ height (m)
7:18PM
0.08
5:22AM
0.18
7:45PM
0.06
6:39AM
0.18
8:08PM
0.05
7:40AM
0.17
8:28PM
0.05
8:32AM
0.16
8:45PM
0.04
9:19AM
0.16
9:03PM
0.04
10:04AM
0.15
9:20PM
0.04
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Sunrise6:28--6:28--6:28--6:28--6:28--6:30--6:30--
Sunset-6:08--6:07--6:07--6:06--6:06--6:05--6:04-
clear
clear
clear
clear
thunderstorm
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
Rain (mm)
----1----------------
Temp. °C272825272825272926282926282826282826272825
Feels °C (?)293025282725292927293027282628292828282725
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for HAW - Oahu

  1. weather stationWind Update The wind is still offshore at Keaau (light winds from the NE at Wheeler Air Force Base/oahu Airport 23 km from Keaau). 0.8m 15s groundswell from the NW with a 0.5m 12s groundswell from the WNW. 2 swells combining to make bigger set waves.

    2 hours 9 minutes ago Keaau
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<
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23 km away, 2 h 9 min ago

19 km/h
NE
0.0
27.2
Air / Water (°C)
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Keaau surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Keaau at:
surf-forecast.com

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 12 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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