Surf Forecasts:
Hanalei Bay surf forecast from 14 Aug 2026:
- Best quality surf: Friday 21 Aug, 2AM (local time) - 3.5ft (1.1m), 6s period, E swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 2PM (local time) - 11ft (3.5m), 10s period, E swell with 2,207 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 11PM (local time) - 3.5ft (1.1m), 7s period with E swell.
Best Forecast Surf Conditions for Hanalei Bay this week:
The surf forecast for Hanalei Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 11PM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.4m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Hanalei Bay in the next 16 days are 3.5m 10s and forecast to arrive on Sunday (Aug 16) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 9s period and expected on Thursday (Aug 20) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 18th Aug) | 3.5ft (1.1m) 7s |
| Best Surf | 2AM (Fri 21st Aug) | 3.5ft (1.1m) 6s |
| Most Powerful | 2PM (Sun 16th Aug) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Hanalei Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get into it. The horizon's looking a bit mushy for a while, but there are a couple of flashes of real potential if you're patient. The water’s sitting right around average for this time of year, so nothing crazy there.
We’re starting off in a bit of a lull. The surf on Friday the 14th is pretty weak, with a modest 5ft to 6ft of short-period ENE swell. The wind is cross-offshore, so it's clean, but the energy is unimpressive. It’s there, but it’s not calling your name.
The weekend kicks up a notch, but it ain't pretty. Saturday the 15th sees the swell rise to 8ft, but the period is still short and fat. The wind goes cross, and with rain showers, it’s going to be a bit of a mess. By Sunday the 16th, we’ve got a 10ft to 12ft pulse, but with 25 mph winds and rain, it’s going to be a blown-out, lumpy mess. This is not your day. In fact, with that much swell and that much wind, this is looking more like a kite-surfing day than a paddle-surfing day at Hanalei Bay.
Monday the 17th settles down a bit to 7ft, but the energy is dropping and the period is short. It’s still cross-off and clean, but the quality is marginal with storm risks around. Not exactly a standout.
From Tuesday the 18th through to the 26th, we’re in a long, drawn-out slump. The swell drops away to under 5ft, and the energy is weak. The winds stay cross-offshore, but there’s just not enough juice in the water. This is a stretch that will have you checking your wax stash more than your surfboard. It's a real flat spell, stretching on for over a week.
But hold on. Look further out. The end of the month is where things get interesting. On Thursday the 27th and Friday the 28th, we start to see a pulse of energy building. The swell is back up to 5ft to 7ft. The period is still short, but the energy is building strong. On Friday afternoon, the energy jumps to a strong level. This is the one to keep an eye on. The wind is cross-off, but the period is still short, so at a reef and point setup like Hanalei Bay, it might not be the perfect, peeling lines we all dream of. But it's the best size we've seen in a while. Then Saturday the 29th backs it off a bit to 6ft, but still with clean conditions and decent energy.
So, here’s the honest truth. The next week to ten days is mostly a wasteland. Don't get your hopes up. The standout window, and I mean the only real standout, is around Friday the 28th. It’s still a week and a half away, so it’s promising but not a guarantee. That 7ft of ENE swell with that burst of energy is the one. It’s not perfect, but if the wind stays offshore, it’ll be the best waves on offer in this whole stretch.
This is Rusty, signing off. Keep the faith.
Short Range ForecastHeavy rain (total 71mm), heaviest during Sun afternoon. Warm (max 27°C on Fri afternoon, min 25°C on Fri morning). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Mon morning. Warm (max 27°C on Wed afternoon, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||
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 8 | ENE 8 | ENE 8 | E 9 | E 10 | E 9 | E 10 | E 10 | E 8 | E 8 | E 8 | E 7 | E 7 | ENE 7 | E 7 | E 9 | E 8 | NE 7 | E 8 | E 8 | E 6 |
Wave Graph | |||||||||||||||||||||
308 | 383 | 448 | 836 | 1092 | 1279 | 2167 | 2118 | 1021 | 551 | 377 | 245 | 166 | 139 | 110 | 123 | 112 | 65 | 63 | 93 | 89 | |
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 | 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 | cross-off | cross-off |
High Tide | 4:04PM0.66m | 4:34AM0.46m | 4:31PM0.57m | 5:27AM0.49m | 4:52PM0.48m | 6:26AM0.51m | 5:06PM0.40m | 7:35AM0.52m | 4:36PM0.34m | 8:57AM0.53m | 10:21AM0.56m | ||||||||||
Low Tide | 8:52AM0.05m | 10:08PM0.08m | 9:40AM0.12m | 10:32PM0.07m | 10:33AM0.19m | 10:57PM0.07m | 11:43AM0.25m | 11:24PM0.07m | 2:22PM0.29m | 11:58PM0.08m | 00:46AM0.09m | 2:05AM0.10m | |||||||||
6:13 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | |
— | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | |
mm | — | — | 3 | 2 | 3 | 12 | 9 | 29 | 13 | 2 | 1 | — | 1 | — | — | — | — | — | — | — | 1 |
Temp °C | 26 | 27 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 25 | 26 | 24 | 26 | 27 | 24 | 26 | 26 | 24 |
Feels °C | 26 | 27 | 26 | 27 | 27 | 26 | 24 | 25 | 25 | 27 | 27 | 26 | 26 | 27 | 25 | 27 | 27 | 26 | 27 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | W 12 | NNW 8 | NNW 8 | NNW 8 | WNW 13 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | W 11 | WNW 11 | WNW 13 | WNW 12 | E 7 | NE 7 | NE 7 | NE 7 | E 8 | E 8 | E 7 |
24 | 12 | 12 | 12 | 34 | 49 | 48 | 42 | 41 | 42 | 21 | 23 | 57 | 49 | 110 | 57 | 49 | 54 | 63 | 58 | 69 | |
Swell 2 Height (m) Direction Period (s) | NNW 8 | W 11 | W 11 | W 10 | NNW 8 | NNW 8 | S 13 | S 13 | S 16 | SE 11 | WNW 11 | SSE 10 | WSW 7 | E 9 | WNW 12 | WNW 12 | WNW 11 | E 8 | NE 7 | NE 7 | NE 7 |
6 | 22 | 21 | 19 | 12 | 13 | 3 | 3 | 19 | 5 | 12 | 11 | 5 | 15 | 48 | 26 | 24 | 65 | 35 | 36 | 37 | |
Swell 3 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | W 13 | W 10 | S 16 | S 17 | S 16 | S 18 | N 7 | SSE 10 | W 14 | SSE 10 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WNW 11 | WSW 9 | WSW 9 | W 10 |
16 | 16 | 15 | 14 | 8 | 19 | 6 | 5 | 6 | 1 | 10 | 16 | 9 | 5 | 5 | 5 | 5 | 23 | 7 | 16 | 31 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | E 9 | E 10 | E 9 | E 10 | E 10 | E 8 | E 8 | E 8 | E 7 | E 7 | ENE 7 | — | E 9 | E 8 | — | — | E 8 | E 6 |
308 | 383 | 448 | 836 | 1092 | 1279 | 2167 | 2118 | 1021 | 551 | 377 | 245 | 166 | 139 | — | 123 | 112 | — | — | 93 | 89 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 34 | 34 | 34 | 34 | 34 | 35 | 328 | 159 | 153 | 153 | 153 | 34 | 29 | 29 | 0 | 7 | 35 | 0 | 34 | 34 | 0 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Hanalei Bay Surf forecast
The above surf forecast table for Hanalei Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Hanalei Bay can be found by selecting the local surf guide option on the grey menu. Our Hanalei Bay 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 (Hanalei Bay) 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 Hanalei Bay 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.
Are you planning a vacation in Kaua'i? If you are looking for accommodation near Hanalei Bay, camping, hotels and condos and appartments in Kaua'i, consider staying in Lihue - Kauai which is 31 km (19 miles) away. Alternatively, find information about places to stay and car hire in Nawiliwili which is 31 km (19 miles) away











