Surf Forecasts:
Number Threes surf forecast from 28 Jul 2026:
- Best quality surf: Tuesday 28 Jul, 11PM (local time) - 7.5ft (2.3m), 12s period, ENE swell with offshore winds.
- Most powerful swell: Tuesday 28 Jul, 2PM (local time) - 8ft (2.4m), 13s period, E swell with 1,999 kJ wave energy.
- Next surfable swell (1★+): Tuesday 28 Jul, 11PM (local time) - 7.5ft (2.3m), 12s period with ENE swell.
Best Forecast Surf Conditions for Number Threes this week:
The surf forecast for Number Threes over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jul 28) at 11PM. The primary swell is predicted to be 2.3m and 12s period with a secondary swell of 0.7m and 14s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Number Threes in the next 16 days are 2.4m 13s and forecast to arrive on Tuesday (Jul 28) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Monday (Jul 27) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 28th Jul) | 7.5ft (2.3m) 12s |
| Best Surf | 11PM (Tue 28th Jul) | 7.5ft (2.3m) 12s |
| Most Powerful | 2PM (Tue 28th Jul) | 8ft (2.4m) 13s |
Table - best surf conditions forecast for Number Threes over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break it down in feet and miles.
We’ve got a 16-day window, and honestly, it’s a bit of a grind. There’s nothing really worth paddling out for until the very end of the run. The first real glimmer of hope doesn’t show up until late in the period, so we’re looking at a long stretch of waiting.
The only spot on the radar is Number Threes, a consistent advanced reef break that’s exposed to the swell. It’s an expert-only wave, and it’s often crowded, so be prepared to share the peak.
The first week is a write-off. From Monday, 27 July, right through to the end of the first week, the wind is hammering out of the ENE at 18-28 mph, mostly cross-offshore but way too strong for clean, enjoyable surfing. The swell is there, but it’s all short-period, wind-affected junk. The combined energy hits some big numbers – like 2070 on Tuesday afternoon the 28th – but with that wind, it’s just a messy, blown-out wall. The water temp is sitting at 80°, which is about normal for this time of year, so at least you won’t need a thick suit while you’re sitting on the beach watching the washing machine.
The whole first week and into the second week is dominated by ENE wind and a messy, short-period swell. It’s not until Tuesday, 11 August, that things finally start to look interesting. The morning of the 11th is still a bit messy with a cross-onshore breeze and a 3ft SSW groundswell with a long 15-second period. The energy is moderate (701), but the wind is not ideal.
Now, for the standout. The one to circle on your calendar is Tuesday afternoon, 11 August. The wind swings light offshore, coming from the north at just 3 mph, nearly glassy. The swell is a clean 3ft from the SSW with a very long 15-second period, giving it proper shape and push. The combined energy is moderate (512), but with that offshore wind and a long-period groundswell, this reef is going to be absolutely pristine. This is the best on offer by a long shot – clean, lined-up, and with that offshore breeze, it’ll be well worth the wait. It’s a long-period swell, so expect longer lulls between sets, but the waves that come through will be quality. For the experts out there, this is your session.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Warm (max 27°C on Tue morning, min 25°C on Mon night). Winds decreasing (fresh winds from the NE on Mon afternoon, calm by Wed night). | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Thu afternoon, min 24°C on Sat night). Winds increasing (moderate winds from the E on Thu afternoon, strong winds from the ENE by Sat morning). | |||||||||||||||||||
Mon 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||
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) | E 13 | E 13 | E 13 | E 13 | ENE 11 | ENE 10 | ENE 9 | ENE 8 | ENE 8 | SSW 18 | E 7 | E 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 792 | 1391 | 1667 | 1872 | 1111 | 718 | 381 | 284 | 246 | 222 | 285 | 329 | 426 | 858 | 893 | 850 | 893 | 678 | 682 | 578 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | off | cross-on | on | cross-on | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:29PM0.70m | 3:10AM0.23m | 3:59PM0.70m | 3:49AM0.25m | 4:29PM0.70m | 4:28AM0.28m | 4:58PM0.68m | 5:11AM0.31m | 5:26PM0.64m | 5:57AM0.34m | 5:55PM0.59m | 6:49AM0.38m | 6:24PM0.52m | |||||||
Low Tide | 10:49PM0.10m | 8:31AM0.01m | 11:11PM0.09m | 9:09AM0.01m | 11:34PM0.08m | 9:48AM0.03m | 11:58PM0.07m | 10:29AM0.06m | 00:22AM0.06m | 11:14AM0.11m | 00:48AM0.05m | 12:06PM0.16m | 1:15AM0.04m | |||||||
 |  | | | |  | |  | | |  | | | | | | | | | | |
 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — |
 | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — |
mm | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 27 | 27 | 25 | 27 | 27 | 26 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 24 | 24 | 28 | 27 | 25 | 29 | 29 | 30 | 28 | 25 | 25 | 24 | 22 | 22 | 21 | 20 | 21 | 22 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | E 13 | E 13 | E 13 | E 13 | ENE 11 | ENE 10 | ENE 9 | ENE 8 | S 14 | ENE 8 | S 13 | S 12 | E 16 | E 14 | E 14 | E 14 | E 14 | E 14 | E 14 | E 13 |
| kJ | 792 | 1391 | 1667 | 1872 | 1111 | 718 | 381 | 284 | 181 | 173 | 166 | 113 | 301 | 202 | 264 | 253 | 257 | 187 | 198 | 126 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 14 | S 14 | NNE 6 | S 14 | S 14 | S 14 | SW 18 | S 13 | SSW 16 | SW 16 | SW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 |
| kJ | 222 | 213 | 143 | 179 | 68 | 195 | 195 | 184 | 154 | 222 | 177 | 206 | 239 | 220 | 127 | 123 | 131 | 133 | 68 | 56 |
Swell 3 Height (m) Direction Period (s) | S 10 | SE 11 | SSE 10 | SSE 10 | SSW 14 | SW 21 | SSW 20 | SW 19 | E 19 | SSW 18 | E 16 | E 15 | S 12 | SSW 12 | S 12 | S 11 | S 11 | N 9 | S 11 | SW 13 |
| kJ | 8 | 4 | 10 | 19 | 195 | 17 | 37 | 95 | 29 | 207 | 127 | 159 | 106 | 47 | 43 | 39 | 22 | 14 | 9 | 42 |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 7 | NNE 8 | NNE 9 | — | — | — | — | ENE 8 | — | E 7 | E 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 262 | 194 | 154 | 190 | — | — | — | — | 246 | — | 285 | 329 | 426 | 858 | 893 | 850 | 893 | 678 | 682 | 578 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 31 | 1 | 1 | 7 | 0 | 15 | 17 | 15 | 31 | 31 | 31 | 39 | 126 | 126 | 147 | 126 | 42 | 42 | 42 | 34 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Number Threes Surf forecast
The above surf forecast table for Number Threes provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Number Threes can be found by selecting the local surf guide option on the grey menu. Our Number Threes 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 (Number Threes) 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 Number Threes 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.
Number Threes 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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