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Surf Forecasts:

Kahana Bay surf break

Kahana Bay surfForecast / HAW – Oahu / USA

information circle48hr 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)

How big are the waves at Kahana Bay today?

The current surf forecast for Kahana Bay at 9AM is: 1.0m 8s primary swell from a East direction and 0.4m 8s secondary swell from a North direction (forecast issued at 07:00am August 27). An open ocean swell of 0.3m 16s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (27 Aug)3.5ft (1.0m)8s
Afternoon (27 Aug)3.5ft (1.0m)8s
Evening (27 Aug)3.5ft (1.0m)7s

Table - waves today at Kahana Bay. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Wednesday
27
Thursday
28
Friday
29
Sat
30
5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM
Rating
(10 max)
0
0
0
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 (?)
0.9
E
1
E
1
E
1
E
1
E
1
E
1
E
1
E
1
E
1
E
0.9
E
1
E
0.9
E
0.9
E
0.9
E
1
E
0.9
E
1
E
1
E
1
E
0.9
E
0.8
E
0.9
E
0.8
E
Period(s) (?)688888767777777556757555
Wave
Graph
(?)Metric surfscale
Energy (?)1071321261231291231189811111693114888883937395976680524348
Wind
(km/h)
15
E
15
E
20
E
20
E
20
ENE
15
E
15
E
15
E
15
E
15
ESE
20
E
15
E
15
E
15
E
10
E
15
ESE
15
ESE
15
E
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		cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscrosscrosscrosscross-
on		cross-
on		crosscrosscrosscrosscrosscrosscross-
on		cross-
on		crosscrosscross
High Tide
/ height (m)
4:42AM
0.58
3:38PM
0.62
5:38AM
0.58
3:36PM
0.56
7:06AM
0.57
3:06PM
0.53
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
Wednesday
27
Thursday
28
Friday
29
Sat
30
Sunrise-6:13-------6:13-------6:13------
Sunset----6:52-------6:51-------6:50---
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
rain showers
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
Rain (mm)
---------------1--------
Temp. °C252627272625252424252727262525242425262726252524
Feels °C (?)262626272526262425252727262627252425262726252624
  • 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 48 minutes ago Kahana Bay
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16 km away, 1 h 48 min ago

5 km/h
ENE
0.0
26.6
Air / Water (°C)
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View detailed surf forecast for Kahana Bay at:
surf-forecast.com

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