
Surf Forecasts:
Kewalos surf forecast from 19 Jul 2026:
- Most powerful swell: Thursday 23 Jul, 11AM (local time) - 6ft (1.8m), 12s period, ENE swell with 857 kJ wave energy.
Best Forecast Surf Conditions for Kewalos this week:
The most powerful waves expected at Kewalos in the next 16 days are 1.8m 12s and forecast to arrive on Thursday (Jul 23) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 7s period and expected on Sunday (Jul 19) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Thu 23rd Jul) | 6ft (1.8m) 12s |
Table - best surf conditions forecast for Kewalos over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break it down for Kewalos.
The first week is a bit of a slog. Small, weak surf, and the wind is a stiff cross-off from the ENE at 15 to 18 mph. The waves are clean-looking but lack any real push or shape. You’ll be scratching around for anything rideable. The better potential shows up toward the end of the month and into early August, when a longer-period easterly swell starts to show. That’s where the real hope lies.
Water temp is about average for the season, nothing to write home about.
The best window is from Sunday, July 26th through Monday, July 27th. On Sunday morning, we’ve got a 3ft swell from the east with a 17-second period, a proper groundswell. Combined wave energy is 1353 (moderate-to-strong). The wind is still a fresh cross-off at 18 mph, so it’s clean but not glassy. Sunday afternoon ticks up to 4ft from the east, 16-second period, energy 1357. Monday morning, July 27th, offers 5ft from the east, 15-second period, energy 1275, with a lighter breeze (15 mph). That’s your best chance for a decent session. The swell direction is east-southeast, and the reef at Kewalos likes SSE, so it’s not a perfect angle, but the long period will wrap in nicely.
The bigger days around July 24th and 25th see swell up to 8ft from the ENE, but the period is short (7 seconds) and the wind is strong (25 mph). The wave energy is moderate-to-strong (1005–1155), but the short period and strong wind make for a lumpy, bumpy mess. That’s more of a wind-swell setup than a surfer’s dream. The reef will be crowded (“often”) on the cleaner days.
By the start of August, the 1st and 2nd, we’re back to small 3ft to 3ft east swell with long periods (14 seconds). Energy is moderate (690–750), wind is cross-off at 15 to 18 mph. Clean, but tiny. The 3rd of August shows 4ft from the east, 16-second period, energy 953, with a moderate breeze. That’s a long-period groundswell for the reef, but it’s still a marginal call.
Summing it up: a long stretch of clean but mostly small and unexciting surf. The standout window is July 26th to 27th, with long-period east swell, but don’t expect perfection. The persistent cross-off wind means the reef will be bumpy, not glassy. If you’re a kite surfer, the trade winds and moderate wave energy might be more interesting than for a paddle surfer. For the rest of us, it’s a longboard or a patient attitude.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Tue afternoon, min 24°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 26°C on Wed afternoon, min 24°C on Wed night). Mainly strong winds. | ||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | S 16 | S 15 | S 14 | S 14 | S 13 | ENE 7 | SSW 23 | SSW 22 | ENE 12 | ENE 7 | SSW 18 | ENE 7 | ENE 7 | ENE 8 |
Wave Graph | |||||||||||||||||||
406 | 310 | 243 | 218 | 220 | 321 | 339 | 329 | 307 | 273 | 153 | 426 | 363 | 857 | 395 | 464 | 558 | 513 | 526 | |
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 |
High Tide | 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 | 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 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | |
7:15 | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 27 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 23 | 23 | 23 | 23 | 25 | 24 | 23 | 25 | 25 | 23 | 22 | 23 | 22 | 23 | 22 | 22 | 23 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SSW 13 | SSW 12 | S 14 | S 16 | S 15 | S 14 | S 14 | S 13 | E 12 | S 13 | E 12 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 16 |
156 | 93 | 95 | 44 | 142 | 321 | 339 | 329 | 307 | 273 | 138 | 206 | 148 | 412 | 395 | 464 | 249 | 340 | 234 | |
Swell 2 Height (m) Direction Period (s) | W 12 | S 19 | S 18 | S 18 | S 16 | SW 18 | SW 16 | SW 17 | SW 16 | E 13 | S 13 | E 11 | S 13 | S 12 | S 11 | S 11 | S 12 | S 12 | S 20 |
28 | 66 | 106 | 97 | 135 | 81 | 69 | 72 | 67 | 121 | 128 | 123 | 157 | 97 | 89 | 55 | 105 | 71 | 293 | |
Swell 3 Height (m) Direction Period (s) | SSE 8 | NNE 8 | W 12 | NNE 8 | SW 18 | W 12 | E 12 | E 12 | E 11 | SW 15 | S 11 | SSW 23 | SSW 22 | SSW 16 | SW 16 | S 13 | SSW 15 | S 21 | S 12 |
7 | 12 | 25 | 24 | 83 | 11 | 12 | 25 | 39 | 60 | 58 | 426 | 363 | 100 | 127 | 85 | 93 | 231 | 69 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | 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 12 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 8 |
406 | 310 | 243 | 218 | 220 | 256 | 168 | 128 | 153 | 200 | 153 | 149 | 268 | 857 | 395 | 452 | 558 | 513 | 526 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 31 | 28 | 133 | 1 | 1 | 28 | 1 | 28 | 28 | 28 | 28 | 36 | 28 | 36 | 36 | 36 | 38 | 38 | 28 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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Information about the Kewalos Surf forecast
The above surf forecast table for Kewalos provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kewalos can be found by selecting the local surf guide option on the grey menu. Our Kewalos 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 (Kewalos) 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 Kewalos 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.
Kewalos is 5 km (3 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.










