Surf Forecasts:
Number Threes surf forecast from 31 Jul 2026:
- Best quality surf: Tuesday 4 Aug, 11PM (local time) - 4.5ft (1.4m), 10s period, ENE swell with cross-offshore winds.
- Most powerful swell: Saturday 1 Aug, 5AM (local time) - 10ft (3.0m), 8s period, E swell with 1,220 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 11PM (local time) - 4.5ft (1.4m), 10s 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 (Aug 04) at 11PM. The primary swell is predicted to be 1.4m and 10s period with a secondary swell of 0.4m and 11s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Number Threes in the next 16 days are 3.0m 8s and forecast to arrive on Saturday (Aug 01) 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 1.1m 6s period and expected on Thursday (Aug 06) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 4th Aug) | 4.5ft (1.4m) 10s |
| Best Surf | 11PM (Tue 4th Aug) | 4.5ft (1.4m) 10s |
| Most Powerful | 5AM (Sat 1st Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Number Threes over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get straight into it. We’ve got Number Threes on the radar, and to be honest, it’s a bit of a mixed bag over the next couple of weeks.
The overall pattern is dominated by a persistent ENE wind, blowing cross-off, which keeps the surface clean but the quality of the surf is a struggle. For the first week and a half, the swell is coming from the wrong direction – ENE – which isn’t what this reef wants to see. It’s an exposed spot that really needs something from the SSE to light up. The result is a lot of marginal to poor surf, with bumpy, short-period energy that just doesn’t have the shape.
From Friday 31st July through to Monday 10th August, the swell hovers around 5 ft to 8 ft, with periods short (6 to 8 seconds). The combined energy is moderate to strong (values between 244 and 1394), but it’s messy. The wind is a consistent 19 to 28 mph, which is a solid breeze. Even though it’s cross-off, these conditions are more suited to a kite than a paddle. The water temp is about average for this time of year, nothing out of the ordinary.
The standout window is the very end of the run. On Monday 10th August, the swell direction swings to the SSW, and the period jumps to 16 seconds. That’s a proper groundswell. The height drops to just 3 ft, but the energy is still moderate (779). The wind is still a moderate breeze, so it’s clean. This is a promising shift, but it’s long-range, so keep an eye on it. The real gem might be Friday 14th August afternoon. The wind dies to almost nothing, a mere 3 mph cross-off, and the swell is a long 19-second period from the S. The combined energy is moderate (490), and the forecast says “expect good surf conditions”. That’s the one to circle on the calendar.
For a break that is consistent and exposed, this has been a poor run. But that long-period S and SSW swell at the end is the light at the end of the tunnel. It’s a reef break, so that long-period energy will wrap in nicely, even if the size is small. Crowds are often a factor here, so be ready for company if it does fire.
Stay patient, keep your eyes on that second week, and I’ll see you in the water.
Rusty
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 26°C on Thu night, min 25°C on Fri night). Winds increasing (light winds from the ENE on Thu night, strong winds from the ENE by Fri night). | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Tue afternoon, min 24°C on Sun night). Mainly fresh winds. | ||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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 7 | ENE 8 | ENE 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 9 | ENE 9 | SSW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 245 | 375 | 469 | 1130 | 1220 | 871 | 889 | 844 | 722 | 541 | 394 | 321 | 811 | 593 | 505 | 373 | 280 | 218 | 81 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:11AM0.31m | 5:26PM0.64m | 5:57AM0.34m | 5:55PM0.59m | 6:49AM0.38m | 6:24PM0.52m | 7:47AM0.42m | 6:55PM0.44m | 8:56AM0.47m | 7:27PM0.36m | 10:11AM0.53m | 8:07PM0.29m | |||||||
Low Tide | 11:58PM0.07m | 10:29AM0.06m | 00:22AM0.06m | 11:14AM0.11m | 00:48AM0.05m | 12:06PM0.16m | 1:15AM0.04m | 1:14PM0.22m | 1:46AM0.04m | 2:52PM0.27m | 2:23AM0.03m | 5:19PM0.27m | 3:10AM0.03m | ||||||
 |  | |  | | | |  | | | | | | | | | | | | |
 | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — |
 | 7:10 | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 27 | 26 | 27 | 27 | 26 |
Feels °C | 27 | 24 | 22 | 21 | 20 | 21 | 22 | 23 | 22 | 22 | 24 | 24 | 23 | 27 | 28 | 27 | 27 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | E 7 | S 12 | E 16 | E 15 | SSW 14 | E 14 | E 14 | E 14 | E 14 | E 13 | E 12 | E 13 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | SSW 11 | ENE 9 | ENE 8 |
| kJ | 245 | 153 | 301 | 205 | 127 | 196 | 194 | 188 | 192 | 125 | 80 | 117 | 811 | 593 | 505 | 373 | 40 | 218 | 61 |
Swell 2 Height (m) Direction Period (s) | S 13 | E 15 | SW 15 | SW 15 | S 12 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSE 14 | SSW 11 | SW 16 | SSW 15 | SSE 12 |
| kJ | 166 | 159 | 239 | 176 | 42 | 123 | 131 | 133 | 68 | 56 | 32 | 32 | 49 | 46 | 65 | 48 | 61 | 88 | 49 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SW 16 | S 12 | S 12 | S 15 | S 11 | S 11 | N 9 | N 9 | SW 13 | SW 13 | SW 12 | SSE 9 | SSE 8 | SSW 12 | SW 15 | SSE 13 | SSW 11 | SSW 14 |
| kJ | 177 | 206 | 106 | 72 | 5 | 39 | 22 | 15 | 14 | 42 | 42 | 38 | 8 | 14 | 44 | 57 | 56 | 39 | 81 |
Wind waves Height (m) Direction Period (s) | — | ENE 8 | ENE 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | — | — | — | ENE 9 | — | ENE 6 |
| kJ | — | 375 | 469 | 1130 | 1220 | 871 | 889 | 844 | 722 | 541 | 394 | 321 | 212 | — | — | — | 280 | — | 69 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 42 | 126 | 42 | 155 | 128 | 128 | 45 | 155 | 31 | 3 | 34 | 1 | 1 | 1 | 0 | 1 | 1 | 31 |
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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