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Surf Forecasts:

Kahana Bay surf break

Kahana Bay surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 7 am Wednesday 27 Aug 2025 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
26.6° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Kahana Bay this week:

The most powerful waves expected at Kahana Bay in the next 12 days are 1.1m 11s and forecast to arrive on Tuesday (Sep 02) 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 0.3m 16s period and expected on Wednesday (Aug 27) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Tue 2nd Sep)3.5ft (1.1m) 11s

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

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

Short Range Forecast Some drizzle, heaviest during Thu night. Warm (max 27°C on Wed morning, min 24°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 27°C on Sat afternoon, min 23°C on Sat night). Wind will be generally light.

Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
01
Tuesday
02
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1
E
1
E
1
E
0.9
E
0.9
E
1
E
1
E
0.9
E
0.8
E
0.8
E
0.7
E
0.4
NE
0.4
NW
0.5
NNW
0.6
NNW
0.6
N
0.6
N
0.9
N
1.1
N
1
N
0.9
N
Period(s) (?)886775775779988881111109
Wave
Graph
(?)Metric surfscale
Energy (?)1261299893889397804873585264817676115287379303319
Wind
(km/h)
20
E
20
ENE
15
E
20
E
15
E
15
ESE
15
E
15
E
15
E
15
ESE
10
E
10
ESE
10
ESE
10
E
10
ESE
15
E
15
E
15
E
15
E
15
E
15
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		crosscrosscross-
on		crosscrosscross-
on		crosscrosscross-
on		crosscrosscrosscrosscrosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on
High Tide
/ height (m)
3:38PM
0.62
5:38AM
0.58
3:36PM
0.56
7:06AM
0.57
3:06PM
0.53
9:58AM
0.59
11:17AM
0.65
11:56AM
0.71
12:25PM
0.77
10:16PM
0.34
Low Tide
/ height (m)
10:29AM
0.30
10:51PM
0.10
11:10AM
0.38
11:16PM
0.11
12:19PM
0.45
11:46PM
0.12
12:38AM
0.14
2:25AM
0.14
4:06AM
0.11
8:29PM
0.29
Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
01
Tuesday
02
Sunrise6:13--6:13--6:13--6:13--6:13--6:13--6:13--
Sunset-6:52--6:51--6:50--6:49--6:47--6:47--6:46-
clear
clear
clear
clear
clear
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
Rain (mm)
-----1---------------
Temp. °C272725272725262725262725272725262625262625
Feels °C (?)262726272726262725252726282725262625252525
  • 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 Continuing clean conditions at Kahana Bay (calm at BUOY-HRRH1 16 km from Kahana Bay). 1.0m 7s swell from the E with a 0.5m 8s swell from the N. 2 swells combining to make bigger set waves.

    1 hour 47 minutes ago Kahana Bay
Expand
<
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16 km away, 1 h 47 min ago

5 km/h
ENE
0.0
26.6
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 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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