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Surf Forecasts:

Kahana Bay surf break

Kahana Bay surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 7 pm Sunday 08 Mar 2026 HST
Forecast update in hr  min  s Forecast update imminent
Kahana Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kahana Bay sea temperature is
24.3° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Kahana Bay this week:

The surf forecast for Kahana Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Mar 10) at 8AM. The primary swell is predicted to be 1.5m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Kahana Bay in the next 12 days are 2.0m 9s and forecast to arrive on Monday (Mar 09) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 7s period and expected on Saturday (Mar 14) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 10th Mar)5ft (1.5m) 9s
Best Surf 8AM (Tue 10th Mar)5ft (1.5m) 9s
Most Powerful 8AM (Mon 9th Mar)6.5ft (2.0m) 9s

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

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

Short Range Forecast Moderate rain (total 16mm), heaviest on Mon night. Warm (max 25°C on Wed afternoon, min 22°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 74mm), heaviest during Sat afternoon. Warm (max 26°C on Thu afternoon, min 23°C on Wed night). Winds increasing (light winds from the SSW on Wed night, strong winds from the SSW by Fri night).

Monday
09
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sun
15
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
1
2
1
1
1
0
0
1
1
1
1
1
0
0
0
0
0
2
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2
E
2
E
1.8
E
1.6
E
1.4
ENE
1.3
ENE
1.1
ENE
1
ENE
1
ENE
0.9
ENE
0.8
ENE
0.7
ENE
0.7
ENE
0.4
N
0.4
N
0.8
E
0.6
N
0.7
N
0.8
N
0.7
N
0.6
N
Period(s) (?)9999999888888121281212121111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)67970957744032627618915114711587656245428411314416911884
Wind
(km/h)
20
E
20
ESE
10
ESE
15
ESE
20
SSE
20
S
20
S
25
S
25
SSW
15
SSW
20
S
20
S
20
S
25
S
30
SSW
40
SSW
35
SSW
35
SSW
25
SW
35
SSW
25
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		offoffoffoffoffoffoffoffoffoffoffoffoff
High Tide
/ height (m)
2:56AM
0.43
8:34PM
0.48
11:08PM
0.52
11:52PM
0.58
12:20AM
0.63
10:48AM
0.22
12:43AM
0.67
11:35AM
0.28
1:03AM
0.70
12:12PM
0.35
Low Tide
/ height (m)
11:53PM
0.34
11:09AM
-0.00
11:42AM
0.03
1:04PM
0.07
3:45PM
0.06
8:40AM
0.18
5:02PM
0.02
7:56AM
0.17
5:48PM
-0.03
7:50AM
0.15
6:27PM
-0.05
Monday
09
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sun
15
Sunrise-6:45--6:43--6:43--6:43--6:41--6:41--6:39-
Sunset--6:37--6:38--6:38--6:38--6:39--6:39--6:39
part cloud
part cloud
part cloud
rain showers
rain showers
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
mod rain
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
Rain (mm)
---612-255224791410216032
Temp. °C232324222424232425232526242424232324242424
Feels °C (?)222224232324232224232525252322211921222222
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kahana Bay 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 Kahana Bay at:
surf-forecast.com

Information about the Kahana Bay Surf forecast

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

Kahana Bay is 17 km (11 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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