Surf Forecasts:
Waikiki surf forecast from 12 Aug 2026:
- Best quality surf: Sunday 16 Aug, 2PM (local time) - 13ft (4.0m), 10s period, E swell with cross-shore winds.
- Most powerful swell: Sunday 16 Aug, 11AM (local time) - 16ft (5.0m), 11s period, E swell with 5,738 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 2PM (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 Sunday (Aug 16) at 2PM. The primary swell is predicted to be 4.0m and 10s period with a secondary swell of 0.6m and 13s. Another secondary swell of 0.5m and 16s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Waikiki in the next 16 days are 5.0m 11s and forecast to arrive on Sunday (Aug 16) at 11AM. Winds are predicted to be cross-shore 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 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Sun 16th Aug) | 13ft (4.0m) 10s |
| Best Surf | 2PM (Sun 16th Aug) | 13ft (4.0m) 10s |
| Most Powerful | 11AM (Sun 16th Aug) | 16ft (5.0m) 11s |
Table - best surf conditions forecast for Waikiki over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming our way.
Right off the bat, we’ve got a long stretch of not much going on. The first surf recommendation isn’t until August 20th, so we’re looking at over a week of very small, wind-affected waves before things finally start to make sense. From the 12th to the 19th, the wind is just too strong and the swell too weak to bother with. It’s a proper dry spell.
The first real glimmer comes on Thursday the 20th at Waikiki (Oahu) . We’ve got a clean 2ft swell rolling in from the SSW, with a lovely long period of 17 to 18 seconds. That’s a proper groundswell, and with moderate offshore winds from the NE and ENE, it should be clean. The combined wave energy is only moderate, coming in at 249 to 265, so it won’t have much punch, but for a spot that’s been quiet, this is a nice little run. The water temp is about average for this time of year, so no surprises there.
Friday the 21st keeps the same vibe. Still a clean 2ft SSW groundswell with a 16 to 17 second period. The wind is light offshore or cross-offshore, so it remains clean. The wave energy is still moderate, around 214 to 247. It’s not big, but it’s ridable and tidy.
Now, the real standout comes in on Sunday the 23rd and Monday the 24th. Late Sunday afternoon, the wind drops right out, becoming a light offshore from the NE at just 6 mph, with the same 2ft SSW groundswell. The wave energy bumps up to a moderate 316, so it’s got a bit more life.
But Monday morning the 24th is the pick of the whole outlook. We’re looking at glassy conditions – that’s right, zero wind, glassy – with a 3ft SSW swell and a 13-second period. The combined energy is still moderate at 382, but that glassy surface, with the long period, will turn those head-high sets into proper little gems at Waikiki. The water is still average temp. This is the session to aim for.
After that, the surf hangs around in the 2ft to 3ft range through to the 27th, mostly from the SSW. Winds stay light and favorable for the most part, with some glassy moments on Tuesday afternoon the 25th. Nothing else gets close to that glassy Monday, though.
So in summary, you wait over a week for the wind to settle, then you get a solid run of clean, small wave days from August 20th. The absolute standout is Monday the 24th morning – that glassy, clean, 3ft swell is the one to circle on the calendar.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Thu morning, min 25°C on Tue night). Mainly strong winds. | Days 5-7 Weather SummaryHeavy rain (total 37mm), heaviest during Sat night. Warm (max 27°C on Sat afternoon, min 25°C on Fri night). Winds decreasing (gales from the ENE on Sat night, light winds from the ENE by Sun night). | ||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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 20 | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | E 9 | E 11 | E 9 | S 14 | S 14 | S 14 | S 13 |
Wave Graph | |||||||||||||||||||
276 | 509 | 498 | 520 | 501 | 662 | 537 | 411 | 411 | 306 | 222 | 168 | 1978 | 5738 | 1672 | 246 | 334 | 260 | 222 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | off | off | off | off | off | off | cross-off | cross | cross | cross-off | cross-off | off | off |
High Tide | 3:43AM0.31m | 4:13PM0.75m | 4:30AM0.36m | 4:48PM0.69m | 5:17AM0.40m | 5:22PM0.62m | 6:06AM0.44m | 5:54PM0.53m | 6:57AM0.47m | 6:24PM0.45m | 7:54AM0.49m | 6:52PM0.37m | |||||||
Low Tide | 10:40PM0.05m | 9:08AM-0.00m | 11:08PM0.04m | 9:58AM0.03m | 11:36PM0.04m | 10:49AM0.08m | 00:03AM0.04m | 11:43AM0.14m | 00:30AM0.05m | 12:43PM0.20m | 00:58AM0.06m | 1:59PM0.25m | 1:27AM0.08m | ||||||
— | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
7:04 | — | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 20 | 8 | 5 | 3 | — | — | — |
Temp °C | 26 | 26 | 26 | 25 | 27 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 26 | 27 | 27 | 26 | 26 | 26 | 25 |
Feels °C | 25 | 24 | 23 | 23 | 24 | 24 | 23 | 23 | 24 | 22 | 23 | 23 | 22 | 25 | 26 | 27 | 29 | 26 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 16 | S 13 | ENE 8 | ENE 8 | ENE 8 | S 13 |
243 | 509 | 498 | 520 | 501 | 662 | 537 | 411 | 411 | 306 | 222 | 168 | 176 | 333 | 160 | 621 | 463 | 356 | 222 | |
Swell 2 Height (m) Direction Period (s) | S 20 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | W 12 | W 11 | W 12 | ESE 12 | W 11 | W 11 | W 13 | S 18 | W 12 | S 16 | SSE 7 | S 14 | S 14 | W 11 |
276 | 218 | 218 | 222 | 113 | 11 | 10 | 11 | 50 | 21 | 21 | 30 | 56 | 25 | 127 | 93 | 334 | 260 | 10 | |
Swell 3 Height (m) Direction Period (s) | SSE 9 | W 13 | W 12 | W 12 | W 12 | SW 19 | SW 18 | SW 18 | W 12 | SSW 17 | SW 17 | S 19 | W 13 | SSW 19 | W 12 | S 14 | SSE 6 | SSE 6 | WSW 5 |
7 | 30 | 25 | 25 | 11 | 14 | 13 | 12 | 11 | 29 | 12 | 65 | 30 | 37 | 25 | 246 | 20 | 13 | 2 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 6 | ENE 7 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 8 | E 8 | ENE 11 | ENE 9 | E 9 | E 11 | E 9 | SSE 7 | ENE 8 | — | ENE 7 |
181 | 165 | 141 | 194 | 195 | 227 | 373 | 444 | 502 | 775 | 1932 | 1701 | 1978 | 5738 | 1672 | 154 | 257 | — | 231 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 32 | 32 | 40 | 32 | 32 | 125 | 34 | 45 | 154 | 202 | 202 | 202 | 202 | 150 | 46 | 0 | 32 | 32 | 32 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











