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Surf Forecasts:

Keaulanas surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 1 pm Tuesday 20 Jan 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
24.9° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Keaulanas this week:

The surf forecast for Keaulanas over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jan 21) at 8AM. The primary swell is predicted to be 1.1m and 16s period with a secondary swell of 1.2m and 13s. Another secondary swell of 1.7m and 7s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Keaulanas in the next 12 days are 2.5m 16s and forecast to arrive on Tuesday (Jan 27) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Wednesday (Jan 21) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Wed 21st Jan)3.5ft (1.1m) 16s
Best Surf 8PM (Tue 27th Jan)8ft (2.5m) 16s
Most Powerful 5PM (Tue 27th Jan)8ft (2.5m) 16s

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

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

Short Range Forecast Light rain (total 2mm), mostly falling on Tue night. Warm (max 24°C on Tue afternoon, min 20°C on Tue night). Winds decreasing (fresh winds from the N on Tue night, calm by Thu afternoon).

Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Fri night. Warm (max 24°C on Sun morning, min 20°C on Sat night). Wind will be generally light.

Tue
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
1
1
4
4
3
4
4
4
4
4
3
3
1
1
0
0
1
0
0
1
4
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.4
NW
1.3
NW
1.6
NW
1.6
NW
1.5
NW
1.4
NW
2
NW
1.6
NNW
2
NNW
1.9
NW
1.4
NNW
1.2
NNW
0.6
NW
0.6
NW
0.6
NW
0.6
NW
0.6
NW
0.6
NW
0.4
S
0.7
NNW
2.3
NNW
Period(s) (?)141316141414131212121111161514131312181514
Wave
Graph
(?)Metric surfscale
Energy kJ (?)8335601267109487777713267461177102945830517513912711113490962092020
Wind
(km/h)
10
SSW
25
NW
15
ENE
20
NE
10
NE
10
ENE
5
NE
15
NNE
10
ENE
15
ESE
10
E
5
E
10
SSW
10
SSE
15
SSE
15
SSW
5
S
10
S
5
S
5
SSE
5
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		crosscross-
off		offoffoffglassoffoffcross-
off		cross-
off		cross-
off		cross-
on		crosscross-
on		cross-
on		glasscross-
on		cross-
on		cross-
on		glass
High Tide
/ height (m)
5:03PM
0.30
5:31AM
0.69
5:53PM
0.34
5:57AM
0.64
6:51PM
0.38
6:22AM
0.57
8:00PM
0.42
6:45AM
0.49
9:20PM
0.48
7:03AM
0.41
10:43PM
0.55
11:56PM
0.62
Low Tide
/ height (m)
10:17PM
0.09
12:37PM
0.12
11:00PM
0.14
1:00PM
0.11
11:50PM
0.22
1:26PM
0.10
12:59AM
0.29
1:55PM
0.09
2:52AM
0.35
2:32PM
0.08
3:20PM
0.07
Tue
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Sunrise--7:11--7:11--7:11--7:11--7:11--7:11--7:11
Sunset6:14--6:15--6:15--6:15--6:16--6:16--6:17--
clear
rain showers
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
rain showers
rain showers
cloud
light rain
part cloud
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
-2-------12-2--------
Temp. °C242322232123232222232223232124242324242324
Feels °C (?)232320201923232322232324242224242526252526
  • 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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Latest Updates

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Keaulanas 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 Keaulanas at:
surf-forecast.com

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 12 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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