
Surf Forecasts:
Turtles Reef surf forecast from 4 Sep 2026:
- Best quality surf: Monday 7 Sep, 5PM (local time) - 16ft (5.0m), 14s period, SSW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 5PM (local time) - 16ft (5.0m), 14s period, SSW swell with 9,932 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 8PM (local time) - 5ft (1.5m), 12s period with S swell.
Best Forecast Surf Conditions for Turtles Reef this week:
The surf forecast for Turtles Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 04) at 8PM. The primary swell is predicted to be 1.5m and 12s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Turtles Reef in the next 16 days are 5.0m 14s and forecast to arrive on Monday (Sep 07) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 12s period and expected on Monday (Sep 07) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Fri 4th Sep) | 5ft (1.5m) 12s |
| Best Surf | 5PM (Mon 7th Sep) | 16ft (5.0m) 14s |
| Most Powerful | 5PM (Mon 7th Sep) | 16ft (5.0m) 14s |
Table - best surf conditions forecast for Turtles Reef over the next 16 days.
Short Range ForecastModerate rain (total 12mm), heaviest on Sun afternoon. Warm (max 28°C on Sat afternoon, min 25°C on Fri morning). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Mon night. Warm (max 29°C on Wed afternoon, min 25°C on Wed night). Winds decreasing (fresh winds from the SE on Mon afternoon, calm by Tue night). | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 12 | S 13 | S 13 | S 12 | S 12 | SSW 12 | SSW 13 | SSW 13 | SSW 14 | SSW 15 | SSW 14 | WSW 11 | SSW 8 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SW 16 |
Wave Graph | |||||||||||||||||||||
717 | 736 | 835 | 526 | 972 | 1019 | 1297 | 1693 | 2736 | 7213 | 9932 | 1322 | 439 | 478 | 356 | 336 | 257 | 176 | 131 | 123 | 268 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | cross-off | cross-off | cross | cross-on | cross | cross-off | cross-off | off | off | off | off | off |
High Tide | 10:46AM0.63m | 11:57AM0.67m | 11:47PM0.20m | 12:52PM0.70m | 1:00AM0.25m | 1:38PM0.72m | 1:50AM0.31m | 2:17PM0.71m | 2:34AM0.38m | 2:53PM0.68m | 3:15AM0.44m | 3:25PM0.64m | 3:55AM0.50m | ||||||||
Low Tide | 3:07AM0.10m | 8:21PM0.17m | 8:34PM0.14m | 6:04AM0.09m | 8:53PM0.12m | 7:07AM0.08m | 9:14PM0.10m | 8:03AM0.08m | 9:35PM0.09m | 8:55AM0.10m | 9:55PM0.08m | ||||||||||
6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | |
— | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | |
mm | — | — | — | — | — | — | — | 6 | 6 | — | — | 3 | 2 | 2 | 1 | — | — | — | — | — | — |
Temp °C | 27 | 27 | 25 | 27 | 28 | 26 | 27 | 27 | 26 | 28 | 28 | 27 | 27 | 28 | 27 | 28 | 29 | 27 | 26 | 27 | 25 |
Feels °C | 25 | 24 | 23 | 27 | 27 | 26 | 26 | 27 | 26 | 28 | 26 | 26 | 29 | 30 | 30 | 31 | 32 | 28 | 25 | 25 | 23 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 13 | E 14 | S 12 | S 12 | SSW 12 | SSW 13 | SSW 13 | SSW 14 | SSW 15 | SSW 14 | WSW 11 | SSW 8 | SSW 8 | SSW 14 | SSW 14 | SSW 13 | NW 10 | E 7 | E 13 | ENE 13 |
717 | 736 | 1158 | 526 | 972 | 1019 | 1297 | 1693 | 2736 | 7213 | 9932 | 1322 | 439 | 229 | 356 | 336 | 257 | 110 | 150 | 166 | 590 | |
Swell 2 Height (m) Direction Period (s) | E 14 | E 14 | S 13 | SSW 13 | N 10 | E 13 | E 12 | E 12 | S 18 | S 17 | ENE 13 | ENE 12 | WNW 10 | SSW 14 | SSW 8 | NW 9 | ENE 8 | SSW 13 | NW 9 | SSW 12 | SW 16 |
232 | 384 | 835 | 239 | 17 | 991 | 681 | 771 | 332 | 603 | 888 | 531 | 335 | 478 | 104 | 97 | 63 | 176 | 67 | 123 | 268 | |
Swell 3 Height (m) Direction Period (s) | N 6 | SSW 20 | SSW 20 | N 6 | — | N 6 | N 6 | N 6 | NW 16 | NNW 15 | SSW 16 | SSW 15 | ENE 11 | WNW 9 | WNW 9 | SSW 8 | E 13 | E 13 | SSW 13 | NW 9 | S 12 |
10 | 37 | 38 | 27 | — | 28 | 18 | 11 | 10 | 21 | 834 | 604 | 337 | 173 | 133 | 58 | 126 | 123 | 131 | 39 | 72 | |
Wind waves Height (m) Direction Period (s) | E 7 | ENE 7 | — | E 14 | ENE 13 | ENE 6 | E 12 | — | E 12 | ENE 12 | SSE 8 | S 10 | — | — | — | — | — | ENE 7 | — | E 7 | — |
210 | 310 | — | 928 | 1308 | 139 | 855 | — | 988 | 820 | 875 | 1102 | — | — | — | — | — | 114 | — | 124 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 10 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 27 | 155 | 36 | 33 | 27 | 0 | 0 | 0 | 0 | 0 | 4 | 0 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Turtles Reef Surf forecast
The above surf forecast table for Turtles Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Turtles Reef can be found by selecting the local surf guide option on the grey menu. Our Turtles Reef 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 (Turtles Reef) 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 Turtles Reef 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.
Turtles Reef is 4 km (2 miles) from Makakilo City. If you plan a vacation in Oahu, look for hotels and other accommodation in Makakilo City. Makakilo City has rooms for a wide range of budgets as well as car hire and transport links.










