Surf Forecasts:
Waimanalo surf forecast from 26 Sep 2026:
- Best quality surf: Wednesday 30 Sep, 2AM (local time) - 5ft (1.5m), 8s period, E swell with cross-offshore winds.
- Most powerful swell: Sunday 27 Sep, 8AM (local time) - 13ft (4.0m), 9s period, E swell with 2,940 kJ wave energy.
- Next surfable swell (1★+): Wednesday 30 Sep, 2AM (local time) - 5ft (1.5m), 8s period with E swell.
Best Forecast Surf Conditions for Waimanalo this week:
The surf forecast for Waimanalo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 30) at 2AM. The primary swell is predicted to be 1.5m and 8s period with a secondary swell of 0.7m and 12s. Another secondary swell of 0.4m and 11s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Waimanalo in the next 16 days are 4.0m 9s and forecast to arrive on Sunday (Sep 27) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Wednesday (Sep 30) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 30th Sep) | 5ft (1.5m) 8s |
| Best Surf | 2AM (Wed 30th Sep) | 5ft (1.5m) 8s |
| Most Powerful | 8AM (Sun 27th Sep) | 13ft (4.0m) 9s |
Table - best surf conditions forecast for Waimanalo over the next 16 days.
Short Range ForecastMostly dry. Warm (max 26°C on Fri afternoon, min 24°C on Sat night). Winds decreasing (near gales from the ENE on Sat night, fresh winds from the E by Mon morning). | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Wed night. Warm (max 27°C on Tue afternoon, min 25°C on Mon night). Winds decreasing (fresh winds from the ENE on Mon night, light winds from the SE by Tue night). | |||||||||||||||||||
Fri 25 | Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | E 8 | E 9 | ENE 9 | E 9 | E 9 | E 9 | E 8 | E 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | E 8 | E 8 | E 7 | E 7 | E 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 611 | 1332 | 1670 | 1872 | 2549 | 2539 | 1971 | 1281 | 935 | 688 | 588 | 485 | 392 | 286 | 232 | 227 | 191 | 178 | 168 | 156 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-on |
High Tide | 2:24AM0.54m | 2:15PM0.56m | 3:06AM0.58m | 2:31PM0.52m | 3:51AM0.62m | 2:47PM0.48m | 4:42AM0.63m | 2:59PM0.44m | 5:41AM0.62m | 3:00PM0.40m | 6:58AM0.60m | |||||||||
Low Tide | 8:12PM0.06m | 8:10AM0.12m | 8:33PM0.03m | 8:53AM0.16m | 8:58PM-0.01m | 9:40AM0.21m | 9:26PM-0.03m | 10:35AM0.26m | 9:58PM-0.03m | 11:46AM0.31m | 10:36PM-0.02m | 11:25PM0.01m | ||||||||
 |  | | |  |  | |  | | | | | | |  |  |  | | | | |
 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — |
 | 6:23 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:20 | — | — | 6:19 | — | — | 6:17 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 6 | 2 | 1 | — |
Temp °C | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 27 | 26 | 26 | 26 | 26 |
Feels °C | 22 | 21 | 20 | 19 | 19 | 19 | 21 | 21 | 24 | 25 | 25 | 27 | 28 | 27 | 27 | 27 | 27 | 28 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | NNW 9 | SSE 11 | SE 11 | NW 16 | NW 15 | SSW 15 | SSE 11 | S 11 | S 11 | NNW 14 | NNW 13 | NW 12 | E 14 | E 12 | ENE 8 | E 8 | E 8 | S 6 | E 7 | SSE 6 |
| kJ | 25 | 47 | 29 | 66 | 54 | 45 | 45 | 84 | 110 | 121 | 109 | 69 | 175 | 148 | 232 | 227 | 191 | 19 | 168 | 12 |
Swell 2 Height (m) Direction Period (s) | SSE 11 | N 9 | SW 17 | SW 16 | SSW 16 | NW 13 | NNW 18 | NNW 16 | NNW 14 | S 10 | E 15 | E 14 | NNW 12 | NW 11 | E 14 | E 11 | E 14 | E 13 | E 13 | E 12 |
| kJ | 22 | 23 | 77 | 69 | 49 | 28 | 124 | 226 | 180 | 68 | 67 | 91 | 55 | 30 | 194 | 57 | 136 | 85 | 84 | 48 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SSW 15 | N 8 | N 9 | N 10 | NNW 19 | SSW 14 | WNW 12 | SSE 13 | E 16 | SSW 10 | SSE 12 | SSE 7 | SSW 16 | NW 11 | E 13 | NNW 10 | NNW 10 | SSE 6 | NNW 10 |
| kJ | 24 | 45 | 13 | 14 | 2 | 37 | 41 | 14 | 17 | 45 | 18 | 30 | 15 | 24 | 30 | 31 | 20 | 10 | 12 | 20 |
Wind waves Height (m) Direction Period (s) | ENE 8 | E 8 | E 9 | ENE 9 | E 9 | E 9 | E 9 | E 8 | E 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | E 8 | SSE 6 | SSE 6 | S 6 | E 7 | — | E 6 |
| kJ | 611 | 1332 | 1670 | 1872 | 2549 | 2539 | 1971 | 1281 | 935 | 688 | 588 | 485 | 392 | 286 | 7 | 14 | 11 | 178 | — | 156 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 116 | 117 | 138 | 253 | 147 | 146 | 138 | 117 | 116 | 50 | 44 | 9 | 5 | 0 | 5 | 50 | 48 | 5 | 5 | 9 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 Waimanalo 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.
Information about the Waimanalo Surf forecast
The above surf forecast table for Waimanalo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Waimanalo can be found by selecting the local surf guide option on the grey menu. Our Waimanalo 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 (Waimanalo) 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 Waimanalo 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.
Waimanalo is 7 km (4 miles) from Kailua. If you plan a vacation in Oahu, look for hotels and other accommodation in Kailua. Kailua has rooms for a wide range of budgets as well as car hire and transport links.
Nearest