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Surf Forecasts:

Castles Beach surf break

Castles Beach surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 7 pm Sunday 04 Jan 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
25.1° C
 (Which is slightly warmer than usual)

How big are the waves at Castles Beach today?

The current surf forecast for Castles Beach at 10PM is: 1.6m 11s primary swell from a North-northeast direction and 1.7m 8s secondary swell from a East direction (forecast issued at 07:00pm January 04). The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (HST) & DateWave HeightWave Period
Morning (04 Jan)--
Afternoon (04 Jan)5ft (1.5m)12s
Evening (04 Jan)5ft (1.5m)11s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM
Rating
(10 max)
3
3
4
3
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 (?)
1.5
NNE
1.5
NNE
1.6
NNE
1.6
NNE
2.1
E
2.4
E
2.4
E
1.7
ENE
2.5
E
3.5
ENE
2.1
NE
3
ENE
3.5
ENE
3.5
E
3.5
E
3
E
3
E
3
E
3
E
2.5
E
2.5
E
2.3
E
2.1
E
2
E
Period(s) (?)121111118881089109999999888888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)5595125935825677427425011045185891416601817193420231541132011971097973836692558494
Wind
(km/h)
5
WSW
5
W
10
SW
10
NE
35
E
40
ESE
35
E
40
E
45
ESE
50
E
50
E
45
E
35
E
40
E
35
E
35
E
40
E
40
E
40
E
30
E
30
E
25
E
25
E
20
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offcross-
off		cross-
on		onononononononononononononononononononon
High Tide
/ height (m)
2:36PM
0.46
4:30AM
0.94
3:27PM
0.46
5:02AM
0.88
4:21PM
0.46
5:30AM
0.82
Low Tide
/ height (m)
8:55PM
-0.00
11:23AM
0.34
9:34PM
0.07
11:57AM
0.32
10:10PM
0.16
12:30PM
0.30
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Sunrise-----7:09-------7:09-------7:09--
Sunset6:01-------6:01-------6:02-------
cloud
cloud
cloud
cloud
light rain
thunderstorm
light rain
cloud
light rain
mod rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
part cloud
cloud
cloud
light rain
cloud
cloud
cloud
Rain (mm)
----222-381122221---1---
Temp. °C222222222323232421212323222323232323232323232323
Feels °C (?)242423231918192015151718181819201919192020212122
  • 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 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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