Aligator Rock surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 7 am Tuesday 21 Oct 2025 HST
Forecast update in hr  min  s Forecast update imminent
Aligator Rock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Aligator Rock sea temperature is
26.9° C
(Which is normal for this time of year)


How big are the waves at Aligator Rock today?

The current surf forecast for Aligator Rock at 9AM is: 0.5m 17s primary swell from a North-northwest direction and 0.7m 11s secondary swell from a North-northwest direction (forecast issued at 07:00am October 21). An open ocean swell of 1.5m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (HST) & DateWave HeightWave Period
Morning (21 Oct)1.5ft (0.5m)17s
Afternoon (21 Oct)2.5ft (0.7m)15s
Evening (21 Oct)2.5ft (0.8m)14s

Table - waves today at Aligator Rock. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent
Tuesday
21
Wednesday
22
Thursday
23
Fri
24
5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM
Rating
(10 max)
0
0
0
0
0
1
1
2
2
2
2
2
3
3
3
3
4
3
3
3
3
3
2
2
Swell
Height Map
Wave Height (m) & direction (?)
0.7
NW
0.7
NW
0.5
NNW
0.7
NNW
0.8
NNW
0.8
NNW
0.8
NNW
0.8
NNW
0.8
NNW
1
NNW
1.6
NE
0.6
NNW
0.9
NNW
1.3
NNW
1.6
NNW
1.7
NNW
1.9
NNW
2
NNW
2
NNW
1.9
NNW
1.8
NNW
1.7
NNW
1.6
NNW
1.6
NNW
Period(s) (?)11111616151413131312721201918181616151514141313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)119119149215246233229225209309251300684114716521755195120331859156813701127915888
Wind
(km/h)
20
NE
25
ENE
30
ENE
30
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
E
30
ENE
30
ENE
30
ENE
30
E
30
E
25
ENE
25
ENE
25
E
25
ENE
30
ENE
25
ENE
25
ENE
25
E
30
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffoffoffoffoffoffoffoffoffoffoffoffoffoffoffoff
High Tide
/ height (m)
2:56AM
0.50
2:28PM
0.29
3:27AM
0.51
2:56PM
0.25
3:59AM
0.51
3:25PM
0.22
Low Tide
/ height (m)
8:26AM
0.12
7:18PM
0.02
9:11AM
0.12
7:38PM
0.03
9:59AM
0.12
8:00PM
0.04
Tuesday
21
Wednesday
22
Thursday
23
Fri
24
Sunrise-6:30-------6:30-------6:31------
Sunset----6:02-------6:01-------6:00---
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
clear
part cloud
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C242526262525252524252626262525252525262625252525
Feels °C (?)242424242324242523242424252424242424242423242423
  • 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 Recent cross-shore wind 19 km from Aligator Rock has fallen light (light winds from the NNE at Wheeler Air Force Base/oahu Airport). Waves should be turning clean at Aligator Rock. 0.7m 11s groundswell from the NNW with a 0.2m 17s long period groundswell, also from the NNW. 2 swells combining to make bigger set waves.

    Aligator Rock
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19 km away, 2 h 15 min ago

9 km/h
NNE
0.0
26.9
Air / Water (°C)
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