Surf Forecasts:
Tennis Courts surf forecast from 29 Aug 2026:
- Most powerful swell: Tuesday 1 Sep, 5PM (local time) - 7ft (2.1m), 8s period, ENE swell with 569 kJ wave energy.
Best Forecast Surf Conditions for Tennis Courts this week:
The most powerful waves expected at Tennis Courts in the next 16 days are 2.1m 8s and forecast to arrive on Tuesday (Sep 01) 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 1.8m 8s period and expected on Wednesday (Sep 02) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Tue 1st Sep) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Tennis Courts over the next 16 days.
The Lowdown
Hey, Rusty here. Let’s run through this 16-day window for Tennis Courts. It’s a reef break, exposed to S and SSE swell, but the first week is going to test your patience.
From the 28th of August through the 6th of September, it’s tough sledding. Cross-off winds blowing at 18 to 22 mph wreck the surface. Swell hangs around 3 to 6 ft but it’s mostly short-period from the ENE, so the waves are weak and wonky. Wave energy is moderate (474 to 745) but it’s not coming together. The water temp starts at 81°F, just a hair warmer than average. There’s a little blip on the 2nd of September with a long-period S groundswell (3 ft, 16 seconds) but it’s tiny and still fighting the wind. Nothing to get excited about.
Then we get a real turning point. Starting the 7th of September, the swell builds. The standout is the morning of the 9th of September: the swell hits 8 ft from the ENE with an 8-second period, and here’s the crucial part – the wind drops to just 6 mph from the ENE, cross-off. The wave energy jumps to strong at 1119. This is the cleanest, chunkiest day of the entire run. Only for the experienced crew, but it’s the one to aim for.
The 11th of September offers a bit of variety, with a 9 mph W cross-wind and a mix of a 6 ft ENE swell and a 4 ft S groundswell at 10 seconds, energy still moderate to strong at 911. Nice shape but not as clean as the 9th.
The last stretch, from the 12th of September, fades quickly. Light onshore winds and weak, short-period swell (around 5 ft, 6 seconds, energy down to 329) mean it’s time to pack it in.
Bottom line: the first week is a write-off. The morning of the 9th of September is the one – bigger, cleaner, less wind. Don’t miss it.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Fri afternoon, min 25°C on Fri night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Mon afternoon, min 25°C on Mon night). Mainly fresh winds. | |||||||||||||||||||
Fri 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | ||||||||||||||
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 13 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 16 | S 16 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 329 | 229 | 172 | 189 | 371 | 336 | 348 | 303 | 400 | 430 | 481 | 520 | 569 | 499 | 422 | 322 | 441 | 361 | 322 | 310 |
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 | cross-off |
High Tide | 4:20PM0.62m | 4:47AM0.46m | 4:49PM0.57m | 5:30AM0.50m | 5:18PM0.51m | 6:18AM0.53m | 5:48PM0.44m | 7:14AM0.56m | 6:20PM0.36m | 8:21AM0.59m | 6:54PM0.28m | 9:39AM0.62m | 7:57PM0.22m | |||||||
Low Tide | 10:54PM0.07m | 10:31AM0.10m | 11:17PM0.05m | 11:22AM0.14m | 11:42PM0.05m | 12:22PM0.19m | 00:10AM0.05m | 1:40PM0.23m | 00:43AM0.05m | 3:38PM0.25m | 1:25AM0.06m | 6:22PM0.22m | 2:24AM0.08m | |||||||
 |  | | | | | | | | | | | | | | |  |  | | | |
 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:15 | — | — |
 | 6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 25 | 26 | 26 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 25 | 23 | 23 | 23 | 22 | 23 | 23 | 22 | 23 | 25 | 23 | 24 | 25 | 23 | 24 | 23 | 23 | 24 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 13 | E 13 | E 12 | S 12 | SSW 16 | S 12 | SSW 15 | SSW 15 | SSW 14 | S 19 | SSW 18 | S 18 | S 17 | S 16 | S 16 | S 15 | S 14 | S 14 | S 13 |
| kJ | 329 | 229 | 126 | 110 | 102 | 171 | 100 | 199 | 144 | 138 | 192 | 329 | 314 | 364 | 422 | 322 | 275 | 268 | 192 | 225 |
Swell 2 Height (m) Direction Period (s) | E 15 | E 14 | S 13 | S 13 | E 12 | SSW 12 | SSW 16 | S 11 | S 11 | S 11 | S 10 | SSW 14 | S 12 | S 10 | SSE 10 | S 11 | E 13 | E 13 | E 12 | E 12 |
| kJ | 109 | 146 | 85 | 89 | 106 | 46 | 162 | 59 | 82 | 55 | 51 | 80 | 77 | 35 | 19 | 37 | 87 | 121 | 107 | 102 |
Swell 3 Height (m) Direction Period (s) | SSW 19 | SW 19 | S 13 | S 12 | SSW 17 | SSE 12 | W 11 | ENE 10 | S 21 | SSW 19 | SW 14 | S 10 | SW 14 | SW 14 | SW 14 | E 12 | S 11 | SSE 10 | SSE 10 | SW 18 |
| kJ | 36 | 56 | 89 | 75 | 186 | 48 | 9 | 37 | 34 | 122 | 54 | 30 | 51 | 51 | 30 | 26 | 58 | 33 | 34 | 12 |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 156 | 194 | 172 | 189 | 371 | 336 | 348 | 303 | 400 | 430 | 481 | 520 | 569 | 499 | 363 | 378 | 441 | 361 | 322 | 310 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 42 | 28 | 30 | 39 | 36 | 36 | 128 | 28 | 36 | 37 | 28 | 28 | 128 | 28 | 28 | 37 | 28 | 28 | 28 | 0 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Tennis Courts Surf forecast
The above surf forecast table for Tennis Courts provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tennis Courts can be found by selecting the local surf guide option on the grey menu. Our Tennis Courts 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 (Tennis Courts) 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 Tennis Courts 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.
Tennis Courts is 4 km (2 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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