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Surf Forecasts:

The Cove surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 1 pm Thursday 18 Sep 2025 HST
Forecast update in hr  min  s Forecast update imminent
The Cove surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Cove sea temperature is
26.8° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for The Cove this week:

The surf forecast for The Cove over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 24) at 5AM. The primary swell is predicted to be 0.4m and 13s period with a secondary swell of 0.6m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at The Cove in the next 12 days are 1.1m 15s and forecast to arrive on Sunday (Sep 21) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 8s period and expected on Sunday (Sep 21) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Wed 24th Sep)1.5ft (0.4m) 13s
Best Surf 5AM (Wed 24th Sep)1.5ft (0.4m) 13s
Most Powerful 2AM (Sun 21st Sep)3.5ft (1.1m) 15s

Table - best surf conditions forecast for The Cove over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 28°C on Fri afternoon, min 25°C on Thu night). Mainly fresh winds.

Days 3-6 Weather Summary Some drizzle, heaviest during Tue afternoon. Warm (max 28°C on Sun afternoon, min 25°C on Sun night). Mainly fresh winds.

Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.2
E
0.6
SSW
0.6
SSW
0.5
SSW
0.8
SSW
0.9
SSW
0.9
SSW
1.1
SSW
1
SSW
0.9
SSW
0.9
SSW
0.7
SSW
1.2
ENE
1
ENE
1.2
ENE
1.1
ENE
1
ENE
0.8
ENE
0.9
ENE
0.5
SSE
0.4
SSW
Period(s) (?)613131817161515141313138888775812
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1231181201763174523314853842572491471941441751429665403446
Wind
(km/h)
25
ENE
20
ENE
25
ENE
30
ENE
25
NE
30
ENE
30
ENE
25
ENE
25
E
30
ENE
15
ENE
30
ENE
25
ENE
15
ENE
20
ENE
30
ENE
20
ENE
25
ENE
30
ENE
25
ENE
20
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscross-
off		crosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscross-
on
High Tide
/ height (m)
2:02PM
0.69
2:24AM
0.42
2:35PM
0.67
2:58AM
0.48
3:03PM
0.63
3:31AM
0.54
3:29PM
0.58
4:03AM
0.58
3:54PM
0.53
4:36AM
0.62
4:17PM
0.47
5:09AM
0.63
4:38PM
0.42
5:46AM
0.63
Low Tide
/ height (m)
8:52PM
0.12
7:56AM
0.12
9:10PM
0.11
8:41AM
0.12
9:28PM
0.10
9:24AM
0.14
9:45PM
0.09
10:06AM
0.16
10:03PM
0.09
10:49AM
0.19
10:21PM
0.09
11:34AM
0.22
10:39PM
0.09
12:25PM
0.25
Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise--6:20--6:20--6:20--6:20--6:20--6:20--6:20
Sunset6:31--6:30--6:30--6:29--6:28--6:27--6:25--
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
clear
clear
clear
clear
part cloud
Rain (mm)
---------------1-----
Temp. °C272627282627272527282627272627272527272526
Feels °C (?)252525262525242426272625252627262326252426
  • 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 Still cross-shore at The Cove (light winds from the E at Kalaeloa Airport 3 km from The Cove). 1.0m 5s windswell from the ENE with a 0.7m 8s swell from the SE and a 0.3m 15s groundswell from the SSW as well as a 0.2m 11s groundswell, also from the SSW. 4 swells combining to make bigger set waves.

    1 hour 50 minutes ago The Cove
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1 h 50 min ago

19 km/h
E
Cross-Shore
Please reload the page to see if there are any updates.

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 The Cove 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 The Cove at:
surf-forecast.com

Information about the The Cove Surf forecast

The above surf forecast table for The Cove provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at The Cove can be found by selecting the local surf guide option on the grey menu. Our The Cove surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (The Cove) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for The Cove may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

The Cove is 3 km (2 miles) from 'Ewa Beach. If you plan a vacation in Oahu, look for hotels and other accommodation in 'Ewa Beach. 'Ewa Beach has rooms for a wide range of budgets as well as car hire and transport links.

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