
Surf Forecasts:
Tennis Courts surf forecast from 18 Jul 2026:
- Most powerful swell: Saturday 25 Jul, 8AM (local time) - 3ft (0.9m), 19s period, SSW swell with 627 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 0.9m 19s and forecast to arrive on Saturday (Jul 25) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Wednesday (Jul 22) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sat 25th Jul) | 3ft (0.9m) 19s |
Table - best surf conditions forecast for Tennis Courts over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming up for Tennis Courts over the next 16 days. I’ve got to be straight with you – there’s really no good surf on offer in this whole window. The break is an advanced reef setup, fairly consistent in normal times, but the wind’s blowing cross-off from the ENE pretty much all the time, and the swell never lines up with that optimum SSE direction. So we’re stuck with a long stretch of poor to marginal conditions.
Starting from Saturday July 18th, it’s all poor surf – 7 ft of messy ENE windswell with a short 7-second period, onshore-ish cross-off wind at 25 mph, and combined energy at 556 – moderate. No fun for anyone. Sunday and Monday are barely better: still cross-off, still short-period junk, with wave heights dropping a bit but energy still moderate. Water temp is 80°F, about average for this time of year (anomaly +0.5°F), so at least it’s warm. But the surf is not.
Tuesday the 21st sees a shift – the swell comes from the south with a longer 14-second period, but only 3 ft, and the wind stays cross-off ENE. The combined energy drops a little (531-521), still moderate. That’s a marginal surf call, scores of 1-2 out of 10. Same story Wednesday and Thursday – a few south-southwest groundswells with periods up to 23 seconds, but they’re tiny (2-2 ft) and the wind never cleans up. Energy climbs into the moderate-to-strong range (up to 907), but the wave height is just too small for the advanced reef to work.
We get a bit more size from Friday the 24th onward – still south-southwest groundswell, 2-3 ft, periods 17-19 seconds, energy getting strong (1024-1231). Scores still at 2. Still marginal. The real tease comes the last weekend of July into early August. On Sunday the 26th the swell turns east, 5-5 ft with 16-second period, combined energy over 1500 – strong. Monday the 27th pushes 6-7 ft east swell, 15-16 seconds, energy over 2000 – very strong. Tuesday the 28th holds 7-7 ft, shorter period (13-14 sec) but still big energy. This looks promising on paper – solid groundswell, decent size – but the wind remains cross-off from the ENE or NE, never offshore. That kills the quality. The break is exposed, so it’s not like a sheltered point where cross-off might be okay; on a reef, you want glassy or offshore for clean lines. Here it’s just wind-affected. Scores only reach 3 out of 10 on those best days – marginal at best.
Then from Wednesday the 29th the swell drops, and by Thursday the 30th we’re back to 1 ft of weak SW swell (energy 166) – poor. Friday the 31st and the first days of August show 6-7 ft of short-period ENE windswell again, cross-off wind 12-22 mph, scores 0-1. The last day, Sunday August 2nd, is another poor call.
So the bottom line: no standout days. The best of a bad bunch is around July 27-28 with chest-to-head-high east swell and long-period groundswell, but the wind ruins it. If you’re absolutely desperate, you might find a few rideable but messy waves – definitely not worth a special trip. For an advanced reef that usually delivers when conditions line up, this is a dry spell. Forecasts can change, but right now I’d say save your energy. Rusty out.
Short Range ForecastMostly dry. Warm (max 26°C on Sat morning, min 24°C on Sat night). Winds decreasing (fresh winds from the ENE on Sat morning, light winds from the ENE by Mon night). | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Tue morning, min 24°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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) | ENE 7 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | S 16 | S 15 | S 14 | S 14 | S 13 | ENE 7 | SSW 23 | ENE 12 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | ENE 7 |
Wave Graph | |||||||||||||||||||||
360 | 385 | 353 | 333 | 238 | 257 | 191 | 321 | 339 | 329 | 307 | 273 | 149 | 426 | 609 | 412 | 395 | 464 | 329 | 428 | 369 | |
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 | 7:11PM0.52m | 8:53AM0.38m | 7:45PM0.43m | 10:04AM0.43m | 8:19PM0.34m | 11:13AM0.49m | 8:56PM0.27m | 12:12PM0.54m | 10:06PM0.22m | 1:02PM0.59m | 11:46PM0.19m | 1:44PM0.62m | 00:59AM0.18m | ||||||||
Low Tide | 12:46PM0.16m | 2:15AM0.02m | 2:03PM0.22m | 2:48AM0.03m | 3:52PM0.27m | 3:23AM0.04m | 6:20PM0.26m | 4:02AM0.05m | 8:25PM0.21m | 9:13PM0.17m | 5:34AM0.05m | 9:41PM0.14m | |||||||||
5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | |
— | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 24 | 26 | 26 | 25 | 26 | 26 | 25 | 27 | 27 | 25 | 25 | 26 | 24 | 25 | 26 | 25 | 25 | 26 | 25 |
Feels °C | 22 | 22 | 22 | 24 | 23 | 24 | 25 | 24 | 24 | 26 | 25 | 24 | 23 | 24 | 22 | 22 | 23 | 23 | 22 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 14 | S 12 | SSW 13 | SSW 13 | SSW 12 | S 14 | S 16 | S 15 | S 14 | S 14 | S 13 | E 12 | E 11 | S 13 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 16 |
141 | 158 | 112 | 93 | 95 | 45 | 142 | 321 | 339 | 329 | 307 | 273 | 136 | 87 | 157 | 412 | 395 | 464 | 329 | 428 | 298 | |
Swell 2 Height (m) Direction Period (s) | WNW 13 | WNW 13 | W 12 | S 19 | S 18 | S 18 | S 16 | SW 18 | SW 16 | SW 17 | SW 16 | E 13 | S 13 | SSW 23 | SSW 22 | S 12 | S 11 | S 11 | S 12 | S 12 | S 20 |
57 | 56 | 28 | 66 | 106 | 97 | 135 | 81 | 69 | 72 | 67 | 119 | 128 | 426 | 363 | 97 | 89 | 55 | 143 | 102 | 305 | |
Swell 3 Height (m) Direction Period (s) | SW 15 | SSE 9 | SSE 9 | NNE 8 | W 12 | NNE 8 | SW 18 | W 12 | E 12 | E 12 | E 11 | SW 15 | S 11 | S 13 | SW 18 | SSW 16 | SW 16 | S 13 | SSW 15 | S 21 | S 12 |
55 | 16 | 8 | 11 | 25 | 23 | 83 | 11 | 12 | 25 | 39 | 60 | 57 | 125 | 150 | 100 | 127 | 85 | 91 | 231 | 100 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 12 | ENE 7 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
360 | 385 | 353 | 333 | 238 | 257 | 191 | 214 | 144 | 105 | 108 | 132 | 149 | 129 | 609 | 298 | 256 | 385 | 200 | 263 | 369 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 36 | 36 | 28 | 28 | 42 | 0 | 28 | 28 | 0 | 28 | 28 | 28 | 29 | 39 | 28 | 36 | 42 | 28 | 36 | 36 | 28 |
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.










