Keaulanas surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 7 am Tuesday 07 Apr 2026 HST
Forecast update in hr  min  s Forecast update imminent
Keaulanas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Keaulanas sea temperature is
24.1° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Keaulanas this week:

The surf forecast for Keaulanas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Apr 11) at 8PM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.6m and 13s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Keaulanas in the next 16 days are 3.5m 9s and forecast to arrive on Friday (Apr 10) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 8s period and expected on Friday (Apr 10) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sat 11th Apr)2.5ft (0.8m) 10s
Best Surf 2AM (Sun 12th Apr)3.5ft (1.1m) 11s
Most Powerful 5AM (Fri 10th Apr)11ft (3.5m) 9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 43mm), heaviest during Thu night. Warm (max 24°C on Tue morning, min 22°C on Thu night). Winds increasing (light winds from the SE on Tue night, strong winds from the SSE by Thu afternoon).

Days 3-6 Weather Summary Heavy rain (total 79mm), heaviest during Sat night. Warm (max 25°C on Fri afternoon, min 19°C on Sun night). Winds decreasing (strong winds from the SSE on Fri morning, calm by Sat night).

Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Saturday
11
Sunday
12
Monday
13
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
2
2
2
2
0
0
0
0
0
2
1
0
1
3
0
1
2
2
1
0
Swell
Height Map
Wave Height (m) & direction (?)
0.6
S
0.9
NW
0.9
NW
1.2
NW
1.3
NW
1.1
NW
0.8
SSW
0.7
S
0.6
NW
3
S
3
S
0.8
NW
0.7
S
0.8
NW
1.1
NW
1.1
NW
1
NW
1
NW
1
NW
0.8
NW
0.5
S
Period(s) (?)191514131312151611810121311111010109914
Wave
Graph
(?)Metric surfscale
Energy kJ (?)270318341495529355288242731310154917217115930925118518517011997
Wind
(km/h)
15
S
10
SSE
10
SSE
15
SSE
15
SE
30
SSE
40
SSE
40
SSE
35
SE
30
SSE
15
SW
5
WSW
10
S
10
SSW
5
SW
15
SSW
10
S
5
E
5
E
5
S
5
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
crosscrosscrosscross-
off
cross-
on
cross-
on
cross-
on
crosscross-
on
ononcross-
on
cross-
on
glasscross-
on
cross-
on
cross-
off
cross-
off
glasscross-
on
High Tide
/ height (m)
8:07PM
0.57
9:21PM
0.56
10:32PM
0.56
12:15PM
0.21
11:29PM
0.57
12:51PM
0.27
12:14AM
0.58
1:22PM
0.34
12:53AM
0.57
1:53PM
0.42
1:29AM
0.55
Low Tide
/ height (m)
11:21AM
0.12
11:47AM
0.14
12:29PM
0.17
7:22AM
0.16
2:52PM
0.20
7:25AM
0.14
4:52PM
0.21
7:35AM
0.12
6:12PM
0.21
7:48AM
0.10
7:17PM
0.20
Tuesday
07
Wednesday
08
Thursday
09
Friday
10
Saturday
11
Sunday
12
Monday
13
Sunrise6:20--6:18--6:18--6:16--6:16--6:16--6:15--
Sunset-6:49--6:49--6:49--6:50--6:50--6:50--6:51-
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
heavy rain
rain showers
thunderstorm
clear
part cloud
thunderstorm
thunderstorm
mod rain
heavy rain
heavy rain
light rain
heavy rain
mod rain
Rain (mm)
263124-22332--1277241541210
Temp. °C242324242424242422242524242424222221202121
Feels °C (?)242325242424212019222726262627252522212424
  • 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 Keaulanas Surf forecast

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

Keaulanas is 7 km (4 miles) from Makakilo City. If you plan a vacation in Oahu, look for hotels and other accommodation in Makakilo City. Makakilo City has rooms for a wide range of budgets as well as car hire and transport links.

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