Surf Forecasts:
Waikiki surf forecast from 15 Aug 2026:
- Best quality surf: Saturday 15 Aug, 8PM (local time) - 13ft (4.0m), 10s period, E swell with offshore winds.
- Most powerful swell: Sunday 16 Aug, 5AM (local time) - 15ft (4.5m), 10s period, E swell with 3,502 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 8PM (local time) - 13ft (4.0m), 10s period with E swell.
Best Forecast Surf Conditions for Waikiki this week:
The surf forecast for Waikiki over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 15) at 8PM. The primary swell is predicted to be 4.0m and 10s period with a secondary swell of 0.7m and 13s. Another secondary swell of 0.3m and 18s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Waikiki in the next 16 days are 4.5m 10s and forecast to arrive on Sunday (Aug 16) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.5m 10s period and expected on Sunday (Aug 16) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 15th Aug) | 13ft (4.0m) 10s |
| Best Surf | 8PM (Sat 15th Aug) | 13ft (4.0m) 10s |
| Most Powerful | 5AM (Sun 16th Aug) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for Waikiki over the next 16 days.
The Lowdown
G'day, Rusty here. Let's have a look at what's on offer for the next couple of weeks.
The surf starts off pretty small and messy, with a lot of wind to deal with. The first real standout doesn't show up until Thursday, August 27th, so we've got a bit of a dry spell to sit through. The water temp is sitting right on average for this time of year at 27°, so no drama there.
Waikiki is the only spot in the running, and honestly, it's a bit of a struggle for the first week. From Friday, August 14th, right through to Wednesday, August 26th, the waves are mostly under 3 ft, with a constant fresh to strong offshore breeze. While that offshore wind is clean, it's so strong on some days (near gale on Saturday, 15th) that it's nearly impossible to paddle into. The combined swell energy is weak to moderate (434 on Friday morning, 243 on Saturday morning, 397 on Sunday morning, 764 on Sunday afternoon). The swell direction is mainly from the S or SSE, with a short period of 8 seconds on Sunday afternoon, but mostly around 13-14 seconds. It's a lot of marginal surf with poor conditions. The wind does ease up a bit mid-week, and by Wednesday, August 20th, we get a small 2 ft SSW swell with a long 18-second period, and a moderate offshore breeze, making for some clean but tiny waves. The combined energy is still only moderate (300). The same pattern continues through the next few days. There's a moderate crowd factor here, so you'll have company.
The real standout arrives on Thursday, August 27th. A proper 5 ft E swell shows up, with a 17-18 second period. The combined energy jumps to a very strong 1651 (Thursday morning) and 1591 (Thursday afternoon). The wind is offshore from the NE at 12 mph, making for excellent, clean conditions for experienced surfers. This is the best on offer. Friday, August 28th, keeps the 5 ft E swell going with a gentle cross-offshore breeze, and the energy is still strong at 1317. The swell direction from the E is a bit off the optimum S direction, but the size and quality are hard to ignore. This is expert territory due to the size.
Saturday, August 29th, sees the swell drop to 4 ft from the E, with a 14-second period and light cross-offshore winds. The energy is moderate (856), and it's still a very good option. The window closes out with a small 1 ft SSW groundswell on Saturday afternoon, but by then, the main event is over.
So, to sum it up, Waikiki is a small, windy affair for the first week, but the end of the forecast period, specifically Thursday, August 27th and Friday, August 28th, is worth waiting for.
Rusty, signing off.
Short Range ForecastHeavy rain (total 37mm), heaviest during Sun morning. Warm (max 27°C on Fri afternoon, min 25°C on Fri morning). Winds decreasing (gales from the ENE on Sat night, light winds from the ENE by Sun night). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Mon morning, min 24°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||
AM | 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) | S 14 | S 14 | S 14 | S 13 | S 13 | S 14 | S 13 | SSE 8 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | SW 16 | SSW 16 | SW 16 | SSW 18 | SSW 17 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 411 | 411 | 306 | 222 | 168 | 179 | 157 | 389 | 246 | 264 | 260 | 222 | 165 | 162 | 116 | 129 | 100 | 129 | 207 | 200 | 274 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off | off | cross-off | off | off | off | off | off |
High Tide | 5:22PM0.62m | 6:06AM0.44m | 5:54PM0.53m | 6:57AM0.47m | 6:24PM0.45m | 7:54AM0.49m | 6:52PM0.37m | 8:59AM0.51m | 7:16PM0.30m | 10:13AM0.53m | 11:25AM0.56m | 10:11PM0.21m | |||||||||
Low Tide | 10:49AM0.08m | 00:03AM0.04m | 11:43AM0.14m | 00:30AM0.05m | 12:43PM0.20m | 00:58AM0.06m | 1:59PM0.25m | 1:27AM0.08m | 3:56PM0.27m | 2:01AM0.10m | 2:47AM0.12m | 8:27PM0.20m | |||||||||
 | |  | |  |  |  | |  | | |  | | | | | | | | | | |
 | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — |
 | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — |
mm | — | — | — | — | — | 2 | 18 | 7 | 10 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 25 | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 22 | 24 | 22 | 21 | 21 | 22 | 21 | 26 | 28 | 25 | 25 | 24 | 23 | 24 | 24 | 25 | 25 | 25 | 26 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | S 13 | S 13 | S 14 | SSE 8 | ENE 9 | SSE 7 | S 14 | S 14 | S 13 | S 13 | S 13 | ENE 8 | SW 16 | ENE 8 | E 8 | E 8 | SSW 17 | E 8 |
| kJ | 411 | 411 | 306 | 222 | 168 | 179 | 108 | 858 | 58 | 264 | 260 | 222 | 165 | 162 | 151 | 129 | 172 | 104 | 93 | 200 | 103 |
Swell 2 Height (m) Direction Period (s) | W 12 | E 11 | W 11 | W 11 | W 13 | S 18 | S 13 | SSE 8 | S 14 | S 6 | S 5 | W 11 | SW 17 | SW 18 | S 13 | S 12 | S 12 | SW 16 | NE 7 | SSW 11 | SW 16 |
| kJ | 11 | 62 | 9 | 9 | 30 | 101 | 157 | 210 | 246 | 24 | 8 | 10 | 74 | 79 | 116 | 44 | 45 | 129 | 47 | 23 | 274 |
Swell 3 Height (m) Direction Period (s) | SW 18 | W 12 | SW 17 | SW 17 | S 19 | W 13 | S 16 | S 13 | S 16 | SW 18 | SSW 19 | SSW 19 | E 9 | W 13 | SW 18 | W 12 | SSW 16 | S 12 | SSW 18 | SSE 9 | S 15 |
| kJ | 12 | 11 | 12 | 12 | 65 | 30 | 132 | 165 | 81 | 50 | 37 | 37 | 15 | 31 | 79 | 25 | 100 | 45 | 207 | 8 | 38 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 9 | E 10 | ENE 9 | SSE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | — | ENE 8 | ENE 7 | NE 7 | — | ENE 7 | NE 7 |
| kJ | 494 | 540 | 1081 | 1452 | 2232 | 3457 | 1781 | 389 | 463 | 310 | 237 | 203 | 147 | 163 | — | 140 | 158 | 50 | — | 135 | 47 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 40 | 126 | 202 | 155 | 126 | 202 | 127 | 126 | 0 | 32 | 32 | 3 | 32 | 32 | 0 | 32 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Waikiki Surf forecast
The above surf forecast table for Waikiki provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Waikiki can be found by selecting the local surf guide option on the grey menu. Our Waikiki 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 (Waikiki) 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 Waikiki 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.
Waikiki is 5 km (3 miles) from Honolulu. If you plan a vacation in Oahu, look for hotels and other accommodation in Honolulu. Honolulu has rooms for a wide range of budgets as well as car hire and transport links.
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