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Surf Forecasts:

Castles Beach surf break

Castles Beach surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 1 pm Monday 16 Mar 2026 HST
Forecast update in hr  min  s Forecast update imminent
Castles Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Castles Beach sea temperature is
24.4° C
 (Which is normal for this time of year)

How big are the waves at Castles Beach today?

The current surf forecast for Castles Beach at 5PM is: 0.6m 8s primary swell from a East direction (forecast issued at 01:00pm March 16). An open ocean swell of 0.6m 14s is not directed at the surf break, a second open ocean swell of 0.6m 10s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (HST) & DateWave HeightWave Period
Morning (16 Mar)1.5ft (0.5m)8s
Afternoon (16 Mar)2ft (0.6m)8s
Evening (16 Mar)2ft (0.6m)8s

Table - waves today at Castles Beach. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM
Rating
(10 max)
1
0
1
1
1
1
0
1
1
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 (?)
0.5
E
0.6
E
0.6
E
0.6
E
0.6
E
0.6
E
0.6
E
0.6
E
0.3
S
0.3
S
0.5
E
0.3
S
0.4
S
0.4
S
0.4
S
0.4
S
0.5
S
0.5
S
0.5
S
0.5
S
0.5
S
0.5
S
0.5
S
0.5
S
Period(s) (?)888888881717816161616161616151515141414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)34494949494846445350324782818079124121113107104103102102
Wind
(km/h)
10
SSW
5
S
5
W
5
NNW
0
ESE
5
WNW
15
N
5
ENE
5
E
10
E
10
NE
10
NNE
10
NE
15
NE
10
NE
10
ENE
15
E
15
E
15
E
10
E
15
E
15
SE
10
SSE
15
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		crossoffglassglassglasscrossglassglassoncross-
on		cross-
on		cross-
on		cross-
on		cross-
on		ononononononcross-
on		crosscross
High Tide
/ height (m)
1:19PM
0.56
1:52AM
0.81
1:57PM
0.63
2:14AM
0.79
2:36PM
0.70
2:35AM
0.76
Low Tide
/ height (m)
8:02AM
0.26
7:09PM
0.15
8:16AM
0.21
7:50PM
0.17
8:34AM
0.17
8:30PM
0.20
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Sunrise-------6:37-------6:37-------6:35
Sunset--6:39-------6:40-------6:40-----
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
Rain (mm)
------12-------------11-
Temp. °C232424242423222122222223222222222323232323232323
Feels °C (?)252626262725232324232324232323232424242424242523
  • 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

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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 Castles Beach 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 Castles Beach at:
surf-forecast.com

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