Surf Forecasts:
Lighthouse surf forecast from 11 Aug 2026:
- Best quality surf: Monday 17 Aug, 8PM (local time) - 2.5ft (0.8m), 14s period, S swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 5PM (local time) - 20ft (6.0m), 11s period, E swell with 7,696 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 8PM (local time) - 2.5ft (0.8m), 14s period with S swell.
Best Forecast Surf Conditions for Lighthouse this week:
The surf forecast for Lighthouse over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 8PM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.9m and 5s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Lighthouse in the next 16 days are 6.0m 11s and forecast to arrive on Sunday (Aug 16) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 7.5m 12s period and expected on Sunday (Aug 16) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 17th Aug) | 2.5ft (0.8m) 14s |
| Best Surf | 8PM (Mon 17th Aug) | 2.5ft (0.8m) 14s |
| Most Powerful | 5PM (Sun 16th Aug) | 20ft (6.0m) 11s |
Table - best surf conditions forecast for Lighthouse over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for Lighthouse over the next couple of weeks. I gotta be straight with you – it’s a pretty lean stretch for proper surfing. We’ve got a long run of days where the conditions just aren’t coming together, so patience is the name of the game.
The water temp is sitting at a comfortable 81°, which is pretty normal for this time of year. Nothing weird going on there.
Looking at the forecast, it’s mostly a story of small, clean surf that’s just too weak to get excited about. The wave energy is mostly moderate to weak, and we’ve got a persistent cross-off wind that keeps the surface tidy but the swell isn’t packing enough punch. The first real glimmer of hope doesn’t show up until Wednesday, August 12th, but even then it's a marginal call – wave energy climbing to 757 on the gauge, but with a 3ft S swell and a very long 18-second period. That long period is a beauty for a reef or point, and Lighthouse is a beach-and-reef setup. That combo can be a bit tricky; the swell might stand up too straight on the bank, making for some close-outs. Still, with clean conditions, it’s worth a look for an experienced surfer. Friday morning, August 15th, we get a taste of offshore wind from the NNE at 25 mph, with a 3ft S swell (period 13 seconds). The wind is strong and offshore, so the wave faces will be clean, but that wind is also going to make paddling into these small waves a real fight. That’s a session for the fit and determined only.
Late in the month, around August 25th, we see a bump in size with a 4ft S swell and strong wave energy (779), but the wind stays fresh to strong from the ENE. That’s a cross-off wind, not ideal. The sets might have a bit more push, but the wind chops the quality up. All in all, there’s no proper standout in this window. If you’re desperate for a paddle, the cleanest conditions with any kind of swell are going to be that Wednesday, August 12th morning, or the offshore Friday, August 15th morning – but bring your fitness and your lowest expectations.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Mon afternoon, min 25°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummaryHeavy rain (total 34mm), heaviest during Sat night. Warm (max 27°C on Sat afternoon, min 25°C on Thu night). Winds increasing (fresh winds from the NE on Thu night, near gales from the SSE by Sun morning). | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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) | SSW 15 | SSW 15 | E 7 | SSW 14 | S 20 | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 16 | E 11 | S 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 176 | 186 | 176 | 269 | 276 | 509 | 498 | 520 | 501 | 662 | 537 | 416 | 333 | 243 | 225 | 168 | 170 | 329 | 7696 | 288 |
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 | off | cross-off | cross-on | cross-on | cross-on |
High Tide | 2:54PM0.80m | 2:55AM0.26m | 3:35PM0.79m | 3:43AM0.31m | 4:13PM0.75m | 4:30AM0.36m | 4:48PM0.69m | 5:17AM0.40m | 5:22PM0.62m | 6:06AM0.44m | 5:54PM0.53m | 6:57AM0.47m | 6:24PM0.45m | |||||||
Low Tide | 10:10PM0.06m | 8:15AM-0.02m | 10:40PM0.05m | 9:08AM-0.00m | 11:08PM0.04m | 9:58AM0.03m | 11:36PM0.04m | 10:49AM0.08m | 00:03AM0.04m | 11:43AM0.14m | 00:30AM0.05m | 12:43PM0.20m | 00:58AM0.06m | |||||||
 |  | | | | | | | | | | | | | |  |  |  | |  | |
 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | 7:04 | — | — | 7:04 | — | — | 7:02 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 18 | 16 | 11 | 3 |
Temp °C | 26 | 26 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 27 | 26 | 26 | 27 | 26 |
Feels °C | 24 | 25 | 25 | 24 | 24 | 25 | 23 | 22 | 24 | 23 | 23 | 22 | 22 | 22 | 24 | 24 | 23 | 24 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 16 | ENE 11 | ENE 10 |
| kJ | 176 | 186 | 165 | 269 | 243 | 509 | 498 | 520 | 501 | 662 | 537 | 416 | 333 | 243 | 225 | 168 | 170 | 329 | 6658 | 901 |
Swell 2 Height (m) Direction Period (s) | SSW 11 | SSE 9 | SSW 11 | SSE 9 | S 20 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | W 12 | W 11 | W 12 | W 12 | E 12 | W 11 | W 13 | S 18 | W 12 | S 13 | WSW 6 |
| kJ | 42 | 17 | 41 | 16 | 276 | 218 | 218 | 170 | 113 | 11 | 10 | 11 | 11 | 80 | 9 | 30 | 56 | 25 | 119 | 45 |
Swell 3 Height (m) Direction Period (s) | SSE 10 | SSW 11 | SSE 9 | S 21 | SSE 9 | W 13 | W 12 | W 12 | W 12 | SW 19 | SW 18 | SW 18 | SSW 18 | W 11 | SW 17 | S 16 | W 13 | SSW 19 | S 16 | S 16 |
| kJ | 36 | 23 | 16 | 79 | 15 | 30 | 25 | 25 | 11 | 14 | 13 | 12 | 30 | 21 | 12 | 42 | 30 | 37 | 127 | 81 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | E 7 | ENE 6 | ENE 7 | E 7 | ENE 7 | ENE 8 | ENE 8 | ENE 12 | ENE 13 | ENE 13 | ENE 13 | E 11 | S 6 |
| kJ | 169 | 164 | 176 | 156 | 186 | 155 | 161 | 262 | 233 | 278 | 411 | 426 | 474 | 686 | 2274 | 3771 | 6344 | 18206 | 7696 | 288 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 35 | 3 | 35 | 35 | 6 | 35 | 43 | 35 | 36 | 122 | 35 | 43 | 122 | 35 | 205 | 205 | 187 | 149 | 138 | 49 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Lighthouse Surf forecast
The above surf forecast table for Lighthouse provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lighthouse can be found by selecting the local surf guide option on the grey menu. Our Lighthouse 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 (Lighthouse) 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 Lighthouse 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.
Lighthouse is 8 km (5 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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