
Surf Forecasts:
Tennis Courts surf forecast from 9 Jul 2026:
- Most powerful swell: Sunday 12 Jul, 8PM (local time) - 8ft (2.4m), 8s period, ENE swell with 654 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 2.4m 8s and forecast to arrive on Sunday (Jul 12) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 15s period and expected on Wednesday (Jul 15) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Sun 12th Jul) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for Tennis Courts over the next 16 days.
Alright folks, Rusty here. Let’s get straight into it. The next 16 days are a bit of a mixed bag. We’ve got a long stretch of onshore wind and messy, short-period swell, but there’s a glimmer of something much better if you’re willing to wait.
The forecast kicks off on Wednesday, 8th July, but honestly, don’t get too excited. The only spot in the frame is Tennis Courts – an advanced reef break. Through the first week and a half, the trade winds are hammering in from the ENE at 25 mph, a stiff cross-off breeze that’s going to make conditions pretty average. The swell is coming from the same direction – ENE – with a short, weak period of just 7 to 8 seconds. That’s windswell, not groundswell, so the waves will be a bit lumpy and lack punch. The size hovers around 6 ft to 8 ft, but the combined energy is mostly moderate, reading between 400 and 800 (weak to moderate energy). It’s paddleable, but it’s not pretty. The water temperature is sitting at 80°, which is about normal for this time of year, so no surprises there.
Things get a little more interesting for the weekend of the 18th and 19th July. On Saturday the 18th, the swell pushes up a notch. The afternoon sees a solid 10 ft of ENE swell at 9 seconds, with the combined energy jumping to a strong 1511. That’s a lot of juice, but the wind is still a cross-off from the ENE at 25 mph. At 10 ft, this is strictly for advanced crew only – it’s going to be a beatdown. The Sunday following is similar, with 8 ft waves, but still messy.
Then, hold onto your board, because the real highlight shows up on Monday 21st July. The swell swings around to the east, and the period jumps to a glorious 18 seconds. That’s pure, long-period groundswell. The height drops to 3 ft, but the energy readings are still strong (around 1012 on Tuesday afternoon). This is where Tennis Courts will shine. A long-interval groundswell from the east, with a moderate 16 mph NE wind, makes for a much cleaner, more lined-up wave. The break is a reef, so it will handle this long-period energy beautifully. The combined energy is moderate to strong, and the quality is there. This is the standout window. The 22nd also has some nice 4 ft, 15-second E swell, but the wind picks up a bit again.
The last few days of the month (23rd, 24th) drop back down to weak, poor conditions.
So, to sum it up: the first two weeks are a write-off for clean, quality surf. The best bet is the period from the 21st to the 22nd of July. That’s your window for a proper, long-period groundswell at Tennis Courts. It’s a reef break that’s fairly consistent, but crowds are possible, so get in early. The 18th weekend is big and powerful, but only for the hardcore, as the wind won’t be doing you any favours.
Stay keen, and keep an eye on that 21st.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Wed afternoon, min 24°C on Wed night). Mainly strong winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Sat afternoon, min 24°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Wed 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph | |||||||||||||||||||||
440 | 539 | 393 | 373 | 400 | 379 | 325 | 381 | 444 | 387 | 369 | 456 | 637 | 525 | 393 | 345 | 349 | 280 | 294 | 369 | 432 | |
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 | cross-off |
High Tide | 10:00PM0.26m | 12:45PM0.61m | 11:18PM0.20m | 1:36PM0.69m | 00:40AM0.17m | 2:24PM0.76m | 1:50AM0.16m | 3:11PM0.80m | 2:52AM0.17m | 3:56PM0.82m | 3:49AM0.19m | 4:39PM0.80m | 4:45AM0.22m | ||||||||
Low Tide | 6:43PM0.23m | 4:48AM-0.04m | 8:17PM0.17m | 5:36AM-0.06m | 9:18PM0.12m | 6:28AM-0.08m | 10:04PM0.07m | 7:21AM-0.09m | 10:45PM0.04m | 8:13AM-0.09m | 11:23PM0.02m | 9:06AM-0.08m | 11:59PM0.01m | 9:57AM-0.04m | |||||||
— | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | |
7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | 7:15 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 24 | 25 | 26 | 24 | 25 | 26 | 25 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 26 | 25 | 26 |
Feels °C | 22 | 21 | 23 | 23 | 21 | 23 | 24 | 23 | 23 | 23 | 22 | 22 | 21 | 21 | 22 | 21 | 22 | 22 | 23 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | S 13 | S 12 | S 12 | S 12 | S 12 | SSW 11 | SW 19 | SSW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 15 | SW 14 | SW 14 | SW 14 | W 15 | W 15 |
187 | 125 | 112 | 110 | 75 | 71 | 42 | 184 | 221 | 316 | 309 | 376 | 367 | 353 | 322 | 272 | 208 | 191 | 186 | 227 | 221 | |
Swell 2 Height (m) Direction Period (s) | SE 8 | W 15 | SSE 8 | W 14 | W 13 | W 13 | SW 21 | S 12 | W 14 | W 13 | W 13 | S 13 | SSE 12 | SSE 12 | SSE 12 | W 18 | W 18 | W 16 | W 16 | SSW 13 | SW 13 |
3 | 17 | 6 | 15 | 13 | 13 | 109 | 42 | 63 | 54 | 54 | 29 | 28 | 28 | 27 | 97 | 150 | 188 | 188 | 111 | 164 | |
Swell 3 Height (m) Direction Period (s) | S 18 | SE 8 | S 16 | SSE 8 | W 16 | SSW 21 | W 13 | W 13 | S 12 | S 12 | S 11 | W 12 | W 12 | W 12 | W 12 | SSE 11 | SW 18 | SSW 19 | SW 19 | SSW 17 | SW 18 |
6 | 3 | 21 | 6 | 20 | 45 | 29 | 55 | 44 | 25 | 22 | 27 | 26 | 26 | 12 | 25 | 82 | 146 | 94 | 197 | 152 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
440 | 539 | 393 | 373 | 400 | 379 | 325 | 381 | 444 | 387 | 369 | 456 | 637 | 525 | 393 | 345 | 349 | 280 | 294 | 369 | 432 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 45 | 36 | 37 | 42 | 30 | 28 | 131 | 30 | 30 | 36 | 28 | 36 | 39 | 30 | 36 | 36 | 28 | 29 | 36 | 28 | 30 |
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.











