Surf Forecasts:
Waimanalo surf forecast from 17 Jun 2026:
- Most powerful swell: Monday 22 Jun, 5AM (local time) - 3.5ft (1.1m), 11s period, NE swell with 278 kJ wave energy.
Best Forecast Surf Conditions for Waimanalo this week:
The most powerful waves expected at Waimanalo in the next 16 days are 1.1m 11s and forecast to arrive on Monday (Jun 22) at 5AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 17s period and expected on Wednesday (Jun 17) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Mon 22nd Jun) | 3.5ft (1.1m) 11s |
Table - best surf conditions forecast for Waimanalo over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Warm (max 26°C on Thu morning, min 24°C on Tue afternoon). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Sun night. Warm (max 25°C on Fri afternoon, min 24°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tue 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ENE 9 | ENE 8 | ENE 8 | ENE 8 | NE 9 | ENE 9 | NE 9 | NE 9 | E 5 | E 5 | E 5 | E 5 | E 5 | ENE 5 | ENE 5 | NE 5 | NE 6 | NE 11 | ENE 6 | ENE 6 | ENE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 157 | 131 | 96 | 122 | 42 | 100 | 50 | 61 | 56 | 58 | 47 | 42 | 31 | 28 | 22 | 51 | 83 | 94 | 126 | 117 | 178 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | on | on | cross-on | on |
High Tide | 4:59PM0.73m | 2:48AM0.26m | 5:44PM0.70m | 3:56AM0.24m | 6:26PM0.65m | 5:25AM0.23m | 7:03PM0.59m | 7:32AM0.24m | 7:35PM0.53m | 9:59AM0.30m | 7:59PM0.47m | 11:40AM0.39m | 8:14PM0.41m | 12:35PM0.47m | |||||||
Low Tide | 00:05AM0.20m | 9:43AM-0.11m | 00:57AM0.18m | 10:30AM-0.05m | 1:45AM0.16m | 11:16AM0.04m | 2:28AM0.13m | 12:07PM0.13m | 3:06AM0.09m | 1:16PM0.22m | 3:40AM0.06m | 3:17PM0.29m | 4:11AM0.02m | ||||||||
 |  | | |  |  | | | |  |  | | | | | | | | | | | |
 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 |
 | 7:14 | — | — | 7:14 | — | — | 7:14 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | 7:15 |
mm | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 25 | 24 | 24 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
Feels °C | 24 | 23 | 25 | 25 | 26 | 29 | 29 | 29 | 27 | 26 | 27 | 26 | 25 | 25 | 24 | 23 | 23 | 22 | 22 | 20 | 23 |
Swell 1 Height (m) Direction Period (s) | S 14 | ENE 8 | SSW 14 | S 17 | S 16 | ENE 9 | NE 9 | NE 9 | S 13 | S 13 | S 13 | S 12 | S 12 | NE 8 | NE 8 | S 13 | NE 11 | NE 11 | S 16 | NE 10 | NNW 7 |
| kJ | 104 | 131 | 62 | 215 | 186 | 100 | 50 | 61 | 55 | 54 | 53 | 27 | 25 | 11 | 22 | 31 | 59 | 94 | 46 | 61 | 10 |
Swell 2 Height (m) Direction Period (s) | NW 11 | SSW 14 | S 18 | NW 10 | NE 9 | S 15 | S 14 | S 14 | NE 8 | NW 9 | NE 8 | NW 8 | S 15 | ESE 8 | S 13 | ESE 7 | S 18 | S 12 | S 12 | NNW 8 | S 11 |
| kJ | 19 | 62 | 97 | 16 | 42 | 155 | 107 | 103 | 10 | 13 | 9 | 10 | 39 | 12 | 32 | 11 | 55 | 25 | 11 | 11 | 10 |
Swell 3 Height (m) Direction Period (s) | N 10 | NW 11 | NW 10 | N 8 | NW 10 | NW 10 | ESE 5 | NW 9 | NW 9 | NE 8 | S 16 | S 16 | NW 8 | S 12 | ESE 8 | S 19 | S 13 | S 18 | NNW 7 | S 16 | NW 10 |
| kJ | 8 | 18 | 16 | 5 | 25 | 25 | 9 | 13 | 13 | 10 | 48 | 20 | 10 | 25 | 11 | 66 | 29 | 55 | 5 | 20 | 4 |
Wind waves Height (m) Direction Period (s) | ENE 9 | — | ENE 8 | ENE 8 | ENE 5 | — | — | E 5 | E 5 | E 5 | E 5 | E 5 | E 5 | ENE 5 | ENE 5 | NE 5 | NE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 |
| kJ | 157 | — | 96 | 122 | 26 | — | — | 14 | 56 | 58 | 47 | 42 | 31 | 28 | 22 | 51 | 83 | 55 | 126 | 117 | 178 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 17 | 9 | 9 | 44 | 9 | 5 | 5 | 9 | 14 | 15 | 15 | 44 | 17 | 15 | 15 | 9 | 44 | 44 | 44 | 44 | 44 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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