Castles Beach surf break

Castles Beach surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 1 am Friday 06 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 9AM is: 2.0m 8s primary swell from a East direction and 1.7m 8s secondary swell from a East direction (forecast issued at 01:00am March 06). An open ocean swell of 0.4m 13s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (HST) & DateWave HeightWave Period
Morning (06 Mar)6.5ft (2.0m)8s
Afternoon (06 Mar)6.5ft (2.0m)8s
Evening (06 Mar)5.5ft (1.7m)8s

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


Updates in  hr  min  s Forecast update imminent
Friday
06
Saturday
07
Sunday
08
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.8
E
1.7
E
1.7
E
1.7
E
1.8
E
2
E
1.9
E
1.7
E
1.8
E
2
E
2.1
E
2.2
E
2.2
E
2.1
E
2.1
E
2.2
E
2.2
E
2.2
E
2.3
E
2.4
E
2.3
E
2.2
E
2.1
E
2
E
Period(s) (?)888888888888888889999999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)428392396405439516477392439529569628628601616675675708836929874800731679
Wind
(km/h)
15
ESE
15
ESE
10
E
10
ESE
20
ESE
25
ESE
20
E
25
E
35
E
35
E
30
ESE
30
E
30
E
30
E
25
E
30
E
35
E
30
E
30
E
30
E
25
E
25
E
25
E
25
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
onononononononononononononononononononononon
High Tide
/ height (m)
3:39AM
0.67
4:42PM
0.69
3:48AM
0.62
5:24PM
0.67
3:49AM
0.57
6:16PM
0.64
Low Tide
/ height (m)
9:54PM
0.30
10:05AM
0.16
10:28PM
0.37
10:24AM
0.16
11:04PM
0.43
10:45AM
0.17
Friday
06
Saturday
07
Sunday
08
Sunrise---6:47-------6:46-------6:45----
Sunset------6:37-------6:37-------6:37-
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
thunderstorm
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
thunderstorm
Rain (mm)
------2----------------1
Temp. °C242323232424232323232323232323232223232323232323
Feels °C (?)252425242423232120202120202121201820202020212122
  • 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

Latest Updates

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