Surf Forecasts:
Tennis Courts surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 5AM (local time) - 1.5ft (0.5m), 17s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 11PM (local time) - 2.5ft (0.8m), 16s period, SSW swell with 322 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 5AM (local time) - 1.5ft (0.5m), 17s period with SW swell.
Best Forecast Surf Conditions for Tennis Courts this week:
The surf forecast for Tennis Courts over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 5AM. The primary swell is predicted to be 0.5m and 17s period with a secondary swell of 0.9m and 8s. Another secondary swell of 0.9m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tennis Courts in the next 16 days are 0.8m 16s and forecast to arrive on Friday (Aug 21) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Monday (Aug 24) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 20th Aug) | 1.5ft (0.5m) 17s |
| Best Surf | 5AM (Thu 20th Aug) | 1.5ft (0.5m) 17s |
| Most Powerful | 11PM (Fri 21st Aug) | 2.5ft (0.8m) 16s |
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 on the cards for our local stretch.
Right now, the water temperature is sitting at 80°, which is bang on average for this time of year – no surprises there.
So, the first thing you need to know is that the next week and a bit is a bit of a write-off for any decent waves. We’ve got a long, dry spell until things finally start to look interesting around the start of September. Don't hold your breath for the next few days, because the surf is small and the wind is mostly a messy cross-off breeze.
The first real glimmer of hope shows up on Monday the 1st of September. It’s a long way out, so treat it as a promising but not locked-in call, but the models are pointing to a proper pulse of energy. Through the morning and afternoon, we’re looking at a solid 7ft swell from the ENE, with a period building from 10 to 11 seconds. The combined energy is strong, hitting 1045 and then 1194. The wind is a clean cross-off from the ENE at 18-21 mph, so the surface should be clean. This is a big swell though, well over 8ft, so it's strictly for the experienced crew. Beginners, give this one a miss.
That ENE pulse hangs around into Wednesday the 2nd of September as well. The swell drops just a touch to 7ft, still from the east, with a long 11-second period. The combined energy is very strong, peaking at 1534 on the morning session. The wind is still a clean cross-off out of the ENE. Another one for the advanced surfers only.
Thursday the 3rd of September still has plenty of size, with 6-6ft of ENE swell, but the wind shifts more cross-shore, so the surface won't be quite as perfect as the days before. The energy is still strong, in the 988 to 1099 range.
So, to wrap it up: the first week to ten days is a total dud. The only standout window is the start of September, particularly the 1st and 2nd, when a strong, clean, and powerful ENE groundswell rolls in. Because of the size and the long period, this is best suited for the more experienced surfers.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Wed afternoon, min 24°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Mon night. Warm (max 27°C on Sat morning, min 25°C on Sat night). Mainly strong winds. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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) | SW 16 | E 8 | ENE 7 | SSW 18 | SSW 17 | SW 16 | SW 17 | SW 16 | SSW 16 | SW 16 | SW 16 | ENE 7 | ENE 7 | SSW 15 | ENE 6 | SSW 14 | ENE 6 | ENE 6 | E 8 | ENE 8 | ENE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 129 | 100 | 153 | 207 | 200 | 274 | 291 | 264 | 322 | 261 | 255 | 261 | 247 | 220 | 172 | 166 | 182 | 153 | 294 | 314 | 210 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | glassy | glassy | cross-on | cross | 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 | 10:13AM0.53m | 11:25AM0.56m | 10:11PM0.21m | 12:25PM0.59m | 00:08AM0.21m | 1:12PM0.63m | 1:06AM0.23m | 1:52PM0.66m | 1:46AM0.26m | 2:26PM0.67m | 2:21AM0.29m | 2:56PM0.68m | 2:55AM0.33m | ||||||||
Low Tide | 2:47AM0.12m | 8:27PM0.20m | 8:41PM0.17m | 5:06AM0.12m | 9:00PM0.16m | 6:08AM0.10m | 9:18PM0.14m | 6:59AM0.08m | 9:35PM0.13m | 7:43AM0.06m | 9:53PM0.11m | ||||||||||
 | |  |  | | | | | | | | | | | | | |  | | |  | |
 | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — |
 | — | 6:58 | — | — | 6:57 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 26 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 25 | 26 | 27 | 25 | 27 | 27 | 26 | 27 | 27 | 25 |
Feels °C | 27 | 27 | 27 | 29 | 30 | 32 | 31 | 30 | 30 | 25 | 25 | 23 | 22 | 24 | 23 | 25 | 26 | 26 | 26 | 26 | 23 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | ENE 7 | E 8 | ENE 7 | ENE 7 | ENE 7 | NE 7 | SSW 16 | E 6 | SW 16 | SSW 16 | SSE 13 | SSW 15 | E 9 | SSW 14 | SSW 13 | E 8 | SSW 12 | SSW 16 | SSW 15 |
| kJ | 111 | 84 | 153 | 71 | 127 | 108 | 51 | 67 | 322 | 84 | 255 | 212 | 101 | 191 | 54 | 166 | 156 | 69 | 86 | 142 | 121 |
Swell 2 Height (m) Direction Period (s) | NNE 7 | S 12 | SW 16 | NE 6 | SSW 17 | SW 16 | SW 17 | SW 16 | W 10 | NE 7 | W 11 | S 14 | SW 15 | SSE 13 | SW 14 | SSE 12 | SSE 12 | SSW 13 | S 16 | SSW 12 | SSW 12 |
| kJ | 30 | 45 | 129 | 42 | 200 | 274 | 291 | 264 | 50 | 54 | 64 | 104 | 115 | 35 | 99 | 50 | 48 | 93 | 131 | 56 | 56 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SSW 16 | S 12 | SSW 18 | W 11 | W 9 | NNE 7 | W 10 | S 13 | SW 16 | S 12 | WNW 10 | SSW 15 | WNW 10 | SSE 13 | SSW 18 | SSW 18 | SSE 12 | SSE 12 | SSE 11 | SSW 18 |
| kJ | 129 | 100 | 45 | 207 | 37 | 14 | 26 | 52 | 54 | 261 | 47 | 33 | 76 | 21 | 56 | 62 | 31 | 46 | 29 | 43 | 108 |
Wind waves Height (m) Direction Period (s) | E 8 | NE 6 | NNE 6 | — | — | — | — | — | ENE 7 | — | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | E 8 | ENE 8 | ENE 7 |
| kJ | 48 | 31 | 51 | — | — | — | — | — | 102 | — | 186 | 261 | 247 | 220 | 172 | 150 | 182 | 153 | 294 | 314 | 210 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 0 | 0 | 36 | 39 | 45 | 44 | 45 | 36 | 36 | 28 | 28 | 28 | 29 | 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.
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