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Waimanalo Surf Forecast
/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Waimanalo surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm Saturday 16 May 2026 HSTForecast update in hr min s Forecast update imminent
Waimanalo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waimanalo sea temperature is
25.4° C
(Which is normal for this time of year)How big are the waves at Waimanalo today?
The current surf forecast for Waimanalo at 4AM is: 1.5m 8s primary swell from a East-northeast direction and 0.4m 10s secondary swell from a North-northwest direction (forecast issued at 07:00pm May 16). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 4.5ft (1.4m) | 8s |
| Afternoon (17 May) | 4.5ft (1.4m) | 8s |
| Evening (17 May) | 5.5ft (1.7m) | 8s |
Table - waves today at Waimanalo. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Sat night. Warm (max 25°C on Sat night, min 24°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the ENE by Tue afternoon). | ||||||||||||||||||||||||
Sat 16 | Sunday 17 | Monday 18 | Tue 19 | |||||||||||||||||||||
5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 7 | ENE 7 | |
350 | 350 | 322 | 322 | 291 | 256 | 256 | 256 | 262 | 338 | 414 | 533 | 522 | 473 | 437 | 437 | 438 | 427 | 364 | 345 | 308 | 286 | 303 | 319 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | glassy | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | |
High Tide | 3:26PM0.70m | 1:23AM0.30m | 4:15PM0.71m | 1:53AM0.28m | 5:08PM0.69m | 2:17AM0.25m | ||||||||||||||||||
Low Tide | 9:53PM0.20m | 8:21AM-0.19m | 11:00PM0.21m | 9:03AM-0.17m | 00:21AM0.21m | 9:49AM-0.14m | ||||||||||||||||||
 |  |  |  | |  | | |  | | | |  | |  | | |  | | | | | | | |
 | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — |
 | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:02 | — | — | — | — | — | — | 7:02 |
1 | 1 | — | 1 | — | — | — | — | — | 1 | 1 | 1 | — | — | 1 | 1 | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
27 | 28 | 28 | 28 | 25 | 26 | 25 | 25 | 24 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | NNW 10 | NW 10 | NNW 10 | NNW 9 | NNW 9 | SSW 14 | SSW 14 | SSW 15 | SSW 16 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NNW 12 | NNW 12 |
 kJ | 350 | 350 | 322 | 322 | 291 | 256 | 256 | 256 | 38 | 24 | 18 | 17 | 16 | 20 | 20 | 43 | 48 | 23 | 36 | 19 | 31 | 31 | 54 | 54 |
Swell 2 Height (m) Direction Period (s) | NW 11 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | SSE 7 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | NNW 9 | NNW 13 | NNW 13 | NNW 12 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 58 | 46 | 42 | 42 | 42 | 42 | 41 | 39 | 10 | 44 | 43 | 42 | 20 | 8 | 18 | 17 | 15 | 18 | 18 | 18 | 18 | 39 | 40 | 40 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSE 12 | SSE 9 | SSE 7 | SSE 7 | SSE 6 | SSE 6 | SSW 15 | SSE 7 | NNW 16 | NNW 15 | NNW 15 | NNW 14 | NNW 9 | SSW 19 | SSE 10 | SSE 10 | SSE 10 | NNW 13 | SSW 17 | SSW 18 | SSW 18 | SSE 7 |
| kJ | 26 | 26 | 14 | 16 | 20 | 18 | 8 | 8 | 44 | 10 | 25 | 22 | 21 | 20 | 8 | 37 | 10 | 10 | 10 | 17 | 28 | 30 | 30 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 7 | ENE 7 |
| kJ | — | — | — | — | — | — | — | — | 262 | 338 | 414 | 533 | 522 | 473 | 437 | 437 | 438 | 427 | 364 | 345 | 308 | 286 | 303 | 319 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 9 | 7 | 7 | 0 | 9 | 15 | 15 | 15 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 50 | 45 | 44 | 44 | 44 | 44 | 44 | 50 | 50 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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